A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 c5 3.g3 Nc6 4.Bg2 g6 5.O-O Bg7 6.d3 Nf6 7.Nc3 O-O 8.e4 dxe4 9.dxe4)

[Event "Daily Blitz Arena"] [Site "https://lichess.org/OZtbW7In"] [Date "2019.10.01"] [Round "?"] [White "sorush_1385"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1846"] [BlackElo "1866"] [Annotator "Tactical Analysis 2.10 (5s), TV"] [PlyCount "72"] [EventDate "2019.??.??"] [EventType "blitz"] [TimeControl "300"] 1. f4 (1. g3 g6 2. Bg2 Bg7 3. f4 d5 4. Nf3 {1-0 (41) Ossa,O (2234)-Florez,L (2067) Cali 2017}) 1... d5 {A03 Bird Opening: Dutch Variation} (1... Nf6 2. Nf3 c5 (2... g6 3. g3 Bg7 4. Bg2 {1-0 (37) Reissfelder,M-Lauer,M Waldshut 1991}) 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. d3 d5 7. Nc3 {1/2-1/2 (32) Bombin Pinera, D-Miras,E Asturias 1996}) 2. Nf3 c5 (2... Nf6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. d3 {1-0 (32) Rodriguez Vila,A (2533)-Sega,C (2235) Santos 2008}) 3. g3 Nc6 4. Bg2 g6 5. O-O Bg7 6. d3 Nf6 7. Nc3 O-O 8. e4 dxe4 9. dxe4 {A03 Bird's Opening with 1...d5} Bg4 {1.54/20} (9... Qxd1 $11 {0.25/24} 10. Rxd1 e5) 10. e5 $16 ( 10. Be3 Qa5 11. e5 (11. Qe1 Rfd8 12. e5 Ne8 13. h3 Bf5 14. Qf2 Qb4 15. Rab1 Nd4 16. a3 Qc4 17. Nd2 Qa6 18. Nde4 b6 19. g4 Bd7 20. Rfd1 Rac8 21. Bxd4 cxd4 22. Rxd4 Bc6 23. Rbd1 Rxd4 24. Rxd4 f6 25. Bf1 Qb7 {Ossa,O (2234)-Florez,L (2067) Cali 2017 1-0 (41)}) 11... Rad8 12. Qe1 Ne8 13. Qf2 Bxf3 14. Bxf3 Nd4 15. Bxb7 Qb5 16. Bg2 Qxb2 17. Ne4 Qa3 18. c3 Ne6 19. Nxc5 N8c7 20. c4 Rb8 21. Nd7 Rb2 22. Bc1 Rxf2 23. Bxa3 Rxf1+ 24. Kxf1 Rd8 {Rodriguez Vila,A (2533)-Sega,C (2235) Santos 2008 1-0 (32)}) 10... Nd7 {1.85/17} (10... Qxd1 $1 $14 {0.65/22} 11. Rxd1 Nh5) 11. Be3 {0.65/19} ({White should try} 11. h3 $18 {1.85/17} Bf5 12. g4 ) 11... Qb6 $146 {White is slightly better.} (11... Qa5 12. h3 Bxf3 13. Qxf3 Nb6 14. Qf2 Nd4 15. Ne4 Nc4 16. Bxd4 cxd4 17. Qxd4 Rac8 18. b3 Rfd8 19. Qf2 Nd2 20. Rfd1 Rxc2 21. a3 Rd3 22. b4 Qd8 23. Rxd2 Rdxd2 24. Nxd2 Rxd2 25. Qxa7 Qd3 26. Kh2 {Bombin Pinera,D-Miras,E Asturias 1996 1/2-1/2 (32)}) (11... Rc8 12. Ne4 Qa5 13. c3 Rfd8 14. Qc2 b6 15. a4 Ndb8 16. h3 Bxf3 17. Bxf3 Qa6 18. Rfd1 Rxd1+ 19. Rxd1 Rd8 20. Rxd8+ Nxd8 21. b4 Qc8 22. Bg4 Qc7 23. bxc5 bxc5 24. Nxc5 Ndc6 25. Qd3 Qa5 26. Bf3 {Reissfelder,M-Lauer,M Waldshut 1991 1-0 (37)}) 12. Na4 {0.01/21} (12. b3 $16 {1.29/16}) 12... Qb5 {1.46/21} (12... Qa5 $1 $11 { 0.01/21 remains equal.} 13. b3 Rad8) 13. Nd4 $2 {-4.81/22 [#]} (13. b3 $1 $16 { 1.46/21 stays on course.}) 13... cxd4 $19 ({Worse is} 13... Bxd1 14. Nxb5 Be2 15. Nac3 $15) 14. Qxg4 dxe3 15. Nc3 Qxb2 16. Qxd7 {-7.35/21} (16. Nd5 $142 { -4.98/21} Nb6 17. Qe2) 16... Qxc3 17. Qxb7 Rac8 18. Rab1 e2 19. Rfe1 Nd4 20. Rxe2 Nxe2+ 21. Kf2 Qxc2 {-11.59/22} (21... Qd4+ $142 {-#21/21} 22. Ke1 Rxc2 23. Qb3 Rfc8 24. Rd1 Qg1+ 25. Bf1 Nd4 26. Qxf7+ Kxf7 27. e6+ Kg8 28. Rd2 Qe3+ 29. Be2 Nf3+ 30. Kf1 Qg1#) 22. Rb2 {Black is clearly winning.} Qc5+ 23. Kxe2 Rfd8 { [#] ( -> ...Qc4+)} 24. Qb3 Qc4+ 25. Qxc4 Rxc4 26. Bf1 Ra4 27. Kf3 e6 28. Kg4 h5+ 29. Kg5 Rd1 30. Be2 Rh1 31. Bf3 Rf1 32. Bg2 Ra1 33. g4 hxg4 34. h4 R1xa2 35. Rb8+ Kh7 36. Bc6 R4a3 {Time forfeit. Accuracy: White = 18%, Black = 22%.} 0-1

A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 c5 3.d3 Nf6)

[Event "Daily Blitz Arena"] [Site "https://lichess.org/PXtw6gq1"] [Date "2019.07.09"] [Round "?"] [White "Vaduly"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1434"] [BlackElo "1799"] [Annotator "Tactical Analysis 2.10 (5s), lichess.org, TV"] [PlyCount "58"] [EventDate "2019.??.??"] [EventType "blitz"] [TimeControl "300"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} (1... c5 2. Nf3 Nf6 3. d3 { 0-1 (26) Schlueter,W (2245)-Podlesnik,B (2345) Aosta 1988}) 2. Nf3 c5 3. d3 Nf6 {A03 Bird's Opening with 1...d5} 4. Nc3 (4. e3 Nc6 5. Be2 e6 6. O-O Bd6 7. Qe1 e5 8. fxe5 Nxe5 9. h3 Qe7 10. d4 Nxf3+ 11. Bxf3 Bc7 12. Qf2 O-O 13. Nc3 Be6 14. e4 dxe4 15. Nxe4 Nxe4 16. Bxe4 cxd4 17. Bxb7 Rab8 18. Bf3 Qd6 {Schlueter,W (2245)-Podlesnik,B (2345) Aosta 1988 0-1}) 4... d4 5. Ne4 Nxe4 $146 {0.66/20} ( {Better is} 5... Nc6 $15 {-0.64/21}) (5... Nd5 6. c4 dxc3 7. bxc3 e6 8. c4 Nf6 9. Nxf6+ Qxf6 10. Bb2 Qxb2 {0-1 (10) Mikulaj,S-Jerbic,R Cakovec 2011}) 6. dxe4 $14 Nc6 7. Ne5 $2 {-1.13/19 [#]} (7. e3 $16 {0.93/19 and life is bright.}) 7... Nxe5 $17 8. fxe5 {Black is better.} g6 9. e3 Bg7 10. exd4 cxd4 11. Bc4 { -1.67/19} (11. Bb5+ $15 {-0.66/21} Bd7 12. Bxd7+ Qxd7 13. Bf4) 11... Bxe5 { -0.97/22} (11... O-O $19 {-1.67/19} 12. Bf4 Qa5+ 13. Qd2 Qc5) 12. O-O {-1.95/21 } (12. Qd3 $17 {-0.97/22}) 12... O-O {-0.80/23} (12... f6 $19 {-1.95/21 and Black stays clearly on top.} 13. Bh6 Qc7) 13. Bh6 Bg7 14. Bg5 $2 {-1.99/19 [#]} (14. Bxg7 $11 {-0.29/21 and White is okay.} Kxg7 15. c3) 14... Qd6 $19 15. Qf3 Be6 16. Bd3 b6 17. Rad1 {-2.08/22} (17. a4 $17 {-1.50/25}) 17... Rac8 ({ Inferior is} 17... Bxa2 18. b3 $11) 18. c4 $2 {-3.51/21} (18. Bf4 {-1.77/24} Be5 19. g3) 18... Bxc4 19. Bxc4 Rxc4 20. Rd3 e5 21. h4 Rc2 22. h5 Rxb2 $2 { -0.77/23} (22... h6 $19 {-3.73/21} 23. Rd2 Rc6) 23. h6 $17 Bh8 ({Wrong is} 23... Rxa2 $2 24. hxg7 Kxg7 25. Bf6+ (25. Qh3 h5 $16) 25... Kg8 26. Qh3 $18) 24. Ra3 $2 {-3.32/21} (24. Bc1 $17 {-1.02/24 was the only chance.} Rxa2 25. Ba3 Rxa3 26. Rxa3) 24... a5 $19 25. Qh3 Rc8 $4 {26.16/23} (25... Rc2 $19 {-3.34/24} 26. Raf3 b5) 26. Qh4 $4 {-9.23/20} (26. Qxc8+ $18 {26.16/23} Qf8 27. Rc1) 26... Rcc2 27. Rf2 Rxf2 28. Qxf2 Rxf2 29. Kxf2 Qxa3 {Normal. Accuracy: White = 19%, Black = 40%.} 0-1

A03 Bird's Opening with 1...d5 (1.f4 d5 2.b3 c5 3.Bb2 Nf6 4.e3 e6 5.Nf3 Be7 6.Ne5)

[Event ""] [Site "?"] [Date "2018.02.17"] [White "PP"] [Black "Vierjoki, Timo"] [Result "1/2-1/2"] [ECO "A03"] [WhiteElo "1984"] [BlackElo "1674"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "47"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. b3 c5 3. Bb2 Nf6 4. e3 e6 5. Nf3 Be7 6. Ne5 {-0.31/24 A03 Bird's Opening with 1...d5} (6. c4 $11 {0.10/26}) 6... O-O $15 7. d3 {-0.78/25} (7. Bd3 $11 {0.00/27} Nc6 8. Nxc6 bxc6 9. g4 Qb6 10. g5 Ne4 11. Nc3 f5 12. gxf6 Bxf6 13. Nxe4 dxe4 14. Bxf6 exd3 15. Bc3 dxc2 16. Qxc2 Ba6 17. Rg1 Rf7 18. Qe4 Re8 19. Qe5 g6 20. Qh8# {1-0 (20) Vocaturo,D (2383)-Brunello,S (2455) playchess.com INT 2007}) (7. Be2 Nc6 8. Nxc6 bxc6 9. O-O Bd7 10. Qe1 Qb6 11. Kh1 c4 12. Rf3 cxb3 13. axb3 c5 14. d3 Ne8 15. e4 dxe4 16. dxe4 Bc6 17. Bd3 f5 18. Rg3 fxe4 19. Ra6 Qd8 20. Rxc6 exd3 21. Rxd3 Qb8 { Pruesse,H (2073)-Betke,A (1650) Pfarrkirchen 2017 1-0}) 7... Nc6 $146 {-0.12/30 } (7... d4 $17 {-0.78/25} 8. e4 Bd6) (7... Nbd7 8. Nd2 (8. Nxd7 Nxd7 9. Be2 Bf6 10. d4 b6 11. Bd3 Qc7 12. c3 Bb7 13. Nd2 Rac8 14. O-O cxd4 15. exd4 g6 16. Qe2 Bg7 17. a4 a5 18. Nb1 Nf6 19. Nd2 Rfe8 20. Rac1 Qd8 21. g3 Rc7 22. Kf2 Nd7 { Grishin,P (2135)-Baiburin,I (2010) Sterlitamak 2010 1/2-1/2 (45)}) 8... Nxe5 9. fxe5 Nd7 10. Nf3 f6 11. exf6 Bxf6 12. d4 b6 13. Bd3 a5 14. a4 Ba6 15. Bxa6 Rxa6 16. O-O Qc7 17. Qe2 Raa8 18. c4 Rac8 19. Rac1 Qb7 20. Rfe1 Rfe8 21. Qd3 e5 22. Qf5 {Freienstein,F-Bilinski,V (2030) Silvaplana 1993 0-1 (47)}) 8. Nxc6 $11 bxc6 {Black is slightly better.} 9. Nd2 {-0.82/24} (9. Be2 $11 {-0.07/26}) 9... Qb6 10. Qf3 a5 {0.00/29} (10... Qa5 $15 {-0.45/24}) 11. a4 Ba6 {0.73/23} (11... c4 $11 {-0.08/28 remains equal.}) 12. g4 {0.19/26} (12. Be2 $16 {0.73/23}) 12... Nd7 {0.68/22} (12... Ne8 $11 {0.19/26 deserves consideration.}) 13. h4 { 0.17/27} (13. g5 $14 {0.68/22}) 13... Bf6 14. Bxf6 Nxf6 15. g5 Nd7 16. e4 f5 17. e5 $1 Qb4 18. Kd1 {-0.75/23} (18. h5 $14 {0.40/27 keeps the upper hand.}) 18... Rab8 {0.00/26} (18... Rfd8 $1 $17 {-0.75/23}) 19. Rc1 {-1.30/23} (19. Rh3 $1 $11 {0.00/26}) 19... Qc3 {0.00/31} (19... Rfd8 $17 {-1.30/23} 20. h5 c4 $1) 20. Qf2 Rb4 21. Rh2 Rfb8 22. Be2 $2 {-1.78/27 [#]} (22. h5 $11 {0.00/36}) 22... Qd4 $2 {0.80/28} ({Black should try} 22... Rd4 $1 $19 {-1.78/27 aiming for ... Rbb4.} 23. g6 h6) 23. c4 $2 {-0.73/25} (23. c3 $16 {0.80/28 keeps the pressure on.} Qxf2 24. Rxf2) 23... Qxf2 {0.50/23} (23... Qb2 $17 {-0.73/25}) 24. Rxf2 { Accuracy: White = 31%, Black = 21%.} 1/2-1/2

A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 Nf6 3.g3 g6 4.Bg2 Bg7 5.O-O O-O)

[Event "ICC 10 0 u"] [Site "Internet Chess Club"] [Date "2015.08.06"] [Round "?"] [White "Kojjootti"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1549"] [BlackElo "1558"] [Annotator "Tactical Analysis 2.10 (30s)"] [PlyCount "48"] [EventDate "2015.??.??"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O {0.35/24 A03 Bird's Opening with 1...d5} (5... Nc6 $11 {-0.28/23}) 6. c3 {-0.74/22} (6. d3 $14 {0.35/24 keeps the upper hand.}) 6... c5 {0.24/24} ( 6... c6 $17 {-0.74/22}) (6... b6 7. a4 Bb7 8. Ne5 c5 9. d4 Ne4 10. Be3 Nd7 11. Nxd7 Qxd7 12. Nd2 cxd4 13. Bxd4 Bxd4+ 14. cxd4 Rfc8 15. a5 Qb5 16. a6 Bc6 17. Rf3 Bd7 18. Rb3 Qc6 19. Nxe4 dxe4 20. Rc3 Qd5 21. Rac1 {Grunberg,M (2463) -Ivanisevic,I (2540) Antalya 2002 1/2-1/2 (32)}) 7. d4 {-0.88/23} (7. d3 $11 { 0.24/24 remains equal.}) (7. h3 e6 8. Kh2 Nbd7 9. d3 b6 10. Be3 Bb7 11. Nbd2 Rc8 12. Bf2 Re8 13. d4 Ne4 14. Nxe4 dxe4 15. Ne5 f5 16. Nxd7 Qxd7 17. dxc5 Qxd1 18. Rfxd1 bxc5 19. Rd7 Ba6 20. Bf1 Bf8 21. Rxa7 Ra8 {Sanuy Moncasi,A (1940) -Arno Bendicho,X (1727) Almenar 2018 1-0 (39)}) 7... Qb6 $146 {-0.34/26} ({ Better is} 7... Qc7 $17 {-0.88/23}) (7... Nbd7 8. Na3 Rb8 9. Nc2 b5 10. Ne5 Qc7 11. f5 cxd4 12. Nxd7 Qxd7 13. Nxd4 b4 14. Bf4 Rb6 15. fxg6 hxg6 16. cxb4 Rxb4 17. Nb3 Qb5 18. Be5 Ne4 19. Bxg7 Kxg7 20. e3 Qb6 21. Re1 Rd8 22. Rc1 {Sindija, F (2158)-Biliskov,V (2335) Zadar 2001 0-1 (38)}) (7... b6 8. Ne5 Bb7 9. Nd2 Nbd7 10. Qb3 Qc7 11. e3 Rad8 12. Ndf3 Ne4 13. Nxd7 Rxd7 14. Ne5 Rdd8 15. Bxe4 dxe4 16. Bd2 e6 17. Rfd1 Kh8 18. Rac1 f6 19. Ng4 h5 20. Nf2 e5 21. dxc5 bxc5 22. c4 {Schroeter,H (2072)-Anderton,D (2254) Dresden 2007 1/2-1/2 (33)}) (7... Nc6 8. dxc5 b6 9. Nd4 Nxd4 10. cxd4 bxc5 11. dxc5 {1/2-1/2 (11) Belikov,V (2491)-Iljin,T (2412) Alushta 2010}) 8. e3 {-0.91/21} (8. Nbd2 $15 {-0.34/26}) 8... Nc6 {-0.19/26} (8... Rd8 $17 {-0.91/21}) 9. h3 {-1.09/22} (9. Nbd2 $11 { -0.19/26 keeps the balance.}) 9... Bf5 {-0.15/24} (9... a5 $17 {-1.09/22}) 10. Nbd2 {-0.72/22} (10. g4 $11 {-0.15/24} Be4 11. Nbd2) 10... Ne4 {0.41/25} (10... Rad8 $17 {-0.72/22}) 11. Nxe4 {-0.54/22} (11. g4 $14 {0.41/25} Be6 12. Nxe4 dxe4 13. dxc5 Qxc5 14. Ng5) 11... Bxe4 $15 ({Reject} 11... dxe4 $6 12. Ng5 $16) 12. Kh2 {-0.87/23} (12. Nd2 $11 {-0.26/26}) 12... e6 {-0.36/25} (12... a5 $17 { -0.87/23}) 13. a4 {-1.04/25} ({White should play} 13. g4 $15 {-0.36/25}) 13... Na5 {-0.46/27} (13... Ne7 $17 {-1.04/25}) 14. dxc5 {-1.47/22} (14. Ne5 $15 { -0.46/27}) 14... Qb3 $2 {0.46/30 [#]} (14... Qxc5 $17 {-1.47/22} 15. Nd4 Bxg2 16. Kxg2 Qb6) 15. Ra3 {-0.54/27} (15. Nd2 $14 {0.46/30} Qxd1 16. Rxd1) 15... Qxd1 16. Rxd1 Rac8 {0.39/28} (16... Nb3 $15 {-0.47/29}) 17. b4 $2 {-1.44/25} ( 17. Nd4 $1 $14 {0.39/28 stays ahead.}) 17... Nc4 $36 {Black is really pushing.} 18. Ra2 {-1.88/24} (18. Nd4 $17 {-1.32/31}) 18... Bxc3 $19 19. Nd2 $2 {-3.92/26 } (19. Ne5 {-1.67/31} Bxg2 20. Kxg2) 19... Bxg2 20. Nxc4 {Black should prevent Nd6.} Bf3 ({Don't do} 20... dxc4 21. Kxg2 Bxb4 22. Rd7 $19) (20... Bxb4 21. Ne5 $17) 21. Rd3 Bxb4 ({Not} 21... dxc4 22. Rxc3 a5 23. bxa5 $11) 22. Nd6 Rxc5 23. Nxb7 $2 {-15.18/24} (23. Ba3 {-2.45/30} Bxa3 24. Rdxa3) 23... Rxc1 {[#]} 24. Rb2 Rh1# {Accuracy: White = 7%, Black = 14%.} 0-1

A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 c5 3.g3 Nc6 4.Bg2 Nf6 5.O-O)

[Event "ICC 10 0 u"] [Site "Internet Chess Club"] [Date "2015.08.04"] [Round "?"] [White "Kojjootti"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1549"] [BlackElo "1558"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "144"] [EventDate "2015.??.??"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 3. g3 Nc6 4. Bg2 Nf6 5. O-O {A03 Bird's Opening with 1...d5} g6 6. c3 {-0.38/22} (6. d3 $11 {0.28/25}) 6... Bg7 $15 7. e3 $146 {-0.80/20} (7. d3 $11 {0.00/26 keeps the balance.} Qb6 8. Kh1 O-O 9. Qe1 Qa6 10. Be3 b6 11. Qd2 Be6 12. Na3 Qc8 13. Nc2 Bh3 14. Rae1 Bxg2+ 15. Kxg2 Qb7 16. Kg1 Ng4 17. Bf2 Nxf2 18. Rxf2 d4 19. c4 a6 20. b3 b5 21. Na3 b4 22. Nc2 {Acimovic,G (1694)-Rakic,T (1918) Subotica 2014 0-1 (75)}) (7. Ne5 O-O 8. Nxc6 bxc6 9. d3 Qb6 10. Kh1 Bf5 11. Qe1 d4 12. Na3 Nd5 13. Nc4 Qc7 14. Bd2 e5 15. fxe5 Bxe5 16. cxd4 cxd4 17. Rc1 Rac8 18. Bg5 Bg7 19. Qa5 Qd7 20. Qc5 Bh3 21. Na5 Bxg2+ {Forgacs,J (2300)-Rovid,K (2385) Hungary 1995 0-1 (34)}) (7. h3 O-O 8. d3 Ne8 9. Nbd2 e5 10. fxe5 Nxe5 11. Qe1 Nc6 12. Nh2 Be6 13. Ndf3 Qd7 14. Ng5 Nd6 15. Bf4 Rad8 16. g4 h6 17. Nxe6 fxe6 18. Qd2 Kh7 19. g5 h5 20. Rae1 e5 {1/2-1/2 (20) Roellig,R (1744)-Bachmann,N (1802) Offenbach 2012}) 7... Bg4 {-0.07/24} (7... O-O $17 {-0.80/20}) 8. d4 {-0.74/22} (8. d3 $11 {-0.07/24} ) 8... Qb6 {-0.06/25} (8... Qd7 $17 {-0.74/22}) 9. Qc2 {-0.79/21} (9. Nbd2 $11 {-0.06/25}) 9... O-O 10. Nbd2 {-0.96/24} (10. Ne5 $15 {-0.49/23}) 10... Bf5 { -0.37/26} ({Black should play} 10... Rfd8 $17 {-0.96/24}) 11. Qd1 {-1.13/22} ( 11. Qb3 $15 {-0.37/26}) 11... Ne4 {-0.38/27} ({Better is} 11... e6 $17 { -1.13/22}) 12. Nxe4 Bxe4 (12... dxe4 $6 13. Nd2 $16) 13. Ne5 {-1.25/25} (13. Ng5 $11 {-0.28/25}) 13... Bxg2 14. Kxg2 Rad8 {-0.31/26} (14... Nxe5 $17 { -1.22/21} 15. fxe5 f6) 15. Rb1 {-1.35/23} (15. Nf3 $15 {-0.31/26}) 15... f6 { 0.07/27} (15... Nxe5 $17 {-1.35/23} 16. fxe5 f6 17. exf6 Rxf6) 16. Nd3 $1 $11 cxd4 17. exd4 Rfe8 {0.73/24} (17... e6 $11 {-0.04/27}) 18. Nc5 {-0.20/25} (18. h4 $16 {0.73/24}) 18... e5 19. fxe5 fxe5 20. Bg5 Rd6 $1 21. Nb3 {-0.87/25} (21. Qd2 $11 {0.28/31 remains equal.}) 21... exd4 $17 22. cxd4 Nxd4 ({Much weaker is } 22... Bxd4 $6 23. Qf3 $11) 23. Nxd4 Bxd4 {-0.09/26} (23... Qxd4 $17 {-1.25/27 } 24. Qxd4 Bxd4) 24. Qf3 $1 $11 {Qf7+ would kill now.} Qc7 $2 {5.80/28} (24... Bf6 $15 {-0.33/29}) 25. Bf4 $2 {-1.19/29} (25. Rbe1 $1 $18 {5.80/28} Rb8 26. Bf4) 25... Qc2+ $17 26. Kh1 {[#]} Re2 $1 27. g4 Rd7 ({Don't go for} 27... Rf2 $2 28. Rxf2 Qxb1+ 29. Rf1 $18) 28. Rbc1 {-1.61/26} (28. Rbd1 $17 {-0.89/33 is a better defense.} Bb6 29. Rde1 Rxe1 30. Rxe1) 28... Qxb2 $4 {#6/26} (28... Qe4 $19 {-1.61/26} 29. Qxe4 Rxe4) 29. Rc8+ Kg7 {[#]} 30. Bg3 {10.87/29} (30. Be5+ $142 $1 {#3/26} Kh6 (30... Bxe5 31. Qf8#) 31. Qf4+ g5 32. Qf6#) 30... Bf6 $18 { [#]} 31. g5 $1 Rf7 (31... Bxg5 32. Qf8#) 32. gxf6+ Qxf6 33. Qxf6+ Rxf6 34. Rxf6 $2 {0.70/26} ({White has to play} 34. Rc7+ $18 {11.61/24} Kh6 35. Rxf6) 34... Kxf6 {Endgame KRB-KR} 35. Rc7 {0.00/32} (35. Rf8+ $16 {0.93/25} Ke7 36. Rf2) 35... Rxa2 36. Rxb7 h5 {0.57/29} (36... Ke6 $1 $11 {0.13/32}) 37. Rd7 $14 Ra5 38. Rd6+ Kf5 39. Rd7 g5 40. Kg2 h4 41. Bf2 a6 42. Kf3 Ra3+ 43. Kg2 (43. Be3 $5) 43... Ke4 44. Re7+ Kf5 45. Rf7+ Ke6 46. Rg7 Kf6 47. Bd4+ Kf5 48. Rf7+ Ke4 49. Bf2 (49. Bh8 {seems wilder.} Ra2+ 50. Kh3 d4 51. Re7+ Kf4 52. Be5+) 49... Ra2 50. Re7+ Kd3 51. Re3+ Kc4 52. Re5 d4 53. Rxg5 d3 54. Rg4+ Kc3 55. Kf3 $2 { -4.49/28 [#]} (55. Rg6 $11 {0.00/40}) 55... d2 $1 $19 56. Rg1 $2 {-7.10/28 [#]} (56. Rd4 {-3.69/31} Ra1 57. Rxd2 Kxd2 58. Bxh4) 56... Kd3 $2 {0.00/36} (56... Kc2 $1 $19 {-7.10/28} 57. Ke2 Ra4) 57. Bxh4 {Strongly threatening Bg5.} Rc2 $2 {7.52/33} (57... Kc2 $11 {0.00/37} 58. Rg2 (58. Ke2 Ra5 $15) 58... Ra3+ 59. Ke4 Ra4+ 60. Ke3 Rxh4 61. Rxd2+ Kb3) 58. Rg8 $4 {-#11/26} (58. Bg5 $18 {7.52/33} Rc3 59. Rd1 Kc2+ 60. Ke2) 58... Rc3 $4 {3.71/26} (58... d1=Q+ {-#11/26 mates} 59. Kf4 Rc4+ 60. Ke5 Qe2+ 61. Kf5 Qf3+ 62. Kg6 Rc6+ 63. Kg5 Qd5+ 64. Kf4 Rc4+ 65. Kg3 Qxg8+ 66. Kf3 Qg4+ 67. Kf2 Rf4+ 68. Ke1 Qg1#) 59. Kf2 $4 {-26.99/30} ( 59. Rd8+ $18 {3.71/26} Kc4+ 60. Ke2) 59... Kc2 60. Rd8 $2 {-29.70/29} (60. Rg1 {-2.86/27}) 60... d1=Q 61. Rxd1 Kxd1 {KR-KB} 62. Bg3 a5 {Black mates.} 63. h4 Rc8 64. Be5 a4 65. Kg3 Ke2 66. Kg4 Ke3 67. h5 Ke4 68. Bg7 Rg8 69. h6 a3 70. Kg5 a2 71. Kh5 Kf5 72. Ba1 Rg1 {Accuracy: White = 24%, Black = 38%.} 0-1

A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 c5 3.d3 Nc6 4.g3 g6 5.Bg2 Bg7 6.O-O Nf6 7.Qe1 O-O 8.e4)

[Event "ICC 10 0 u"] [Site "Internet Chess Club"] [Date "2015.06.12"] [Round "?"] [White "Kojjootti"] [Black "Vierjoki, Timo"] [Result "1-0"] [ECO "A03"] [WhiteElo "1549"] [BlackElo "1558"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "77"] [EventDate "2015.??.??"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 3. d3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O Nf6 7. Qe1 O-O 8. e4 {-0.38/26 A03 Bird's Opening with 1...d5} ( 8. h3 $1 $11 {0.09/26}) 8... dxe4 $15 9. dxe4 Nb4 {1.25/23} (9... e5 $11 { -0.12/26} 10. Nc3 (10. fxe5 Ng4 11. Nc3 Ncxe5 12. Nd5 Be6 13. Nxe5 Bxe5 14. h3 Bxd5 15. hxg4 Bc4 16. Rf3 Be6 17. g5 Bg4 18. Rf1 Qe7 19. Rb1 Rad8 20. Bf4 Rd7 21. Qa5 b6 22. Qa3 Rfd8 23. Bf3 Bh3 24. Rfd1 Rxd1+ {Alonso Moyano,J (2400) -Harikrishnan,A (2204) Barbera del Valles 2018 1/2-1/2 (49)}) 10... Nd4 11. Rf2 Nxf3+ 12. Bxf3 Re8 13. f5 gxf5 14. Bg5 Bd7 15. Rd1 Qc8 16. Bxf6 Bxf6 17. Bg4 fxg4 18. Rxf6 Re6 19. Qf2 Bc6 20. Rxf7 Qe8 21. Rf1 Rd8 22. Qf5 Rg6 23. Nd5 Bxd5 24. exd5 e4 {Dzhumaev,M (2434)-Tiviakov,S (2584) Chennai 2018 1-0}) 10. Na3 { 0.78/27} ({White should play} 10. Rf2 {1.25/23}) 10... Rb8 $146 {1.51/22} ( 10... Ne8 $142 {0.78/27}) (10... b6 11. c3 Nd3 12. Qe2 Ba6 13. e5 Ne8 14. Ng5 Rb8 15. Be3 c4 16. Rad1 Qc7 17. Bd4 Bh6 18. e6 f6 19. Ne4 Nd6 20. Nxd6 Qxd6 21. f5 Rbc8 22. Be4 g5 23. Nxc4 Nxb2 24. Qxb2 Bxc4 25. Bxf6 {Cernik,L (2229) -Vagner,T (2288) Czechia 2010 1-0 (42)}) 11. e5 {0.82/25} (11. Qe2 $142 { 1.51/22}) 11... Nfd5 {1.69/23} (11... Ng4 $16 {0.82/25}) 12. c4 {0.29/26} (12. Qf2 $18 {1.69/23}) 12... Nb6 {1.62/24} (12... Nd3 $11 {0.29/26 and Black has nothing to worry.} 13. Qe2 Nxc1 14. Rfxc1 (14. Raxc1 Nb4 $11) 14... Nb4) 13. b3 {1.01/25} (13. Qf2 $18 {1.62/24}) 13... Nd3 {2.13/25} (13... Bg4 $16 {1.01/25}) 14. Qe3 $18 {Threatens to win with Rd1.} Nxc1 15. Raxc1 ({Don't take} 15. Rfxc1 $6 Bg4 $14) 15... Nd7 16. Rfd1 e6 {2.50/23} (16... a6 $16 {1.49/30} 17. Nb1 b5 18. cxb5 axb5) 17. Nb5 a6 18. Nd6 Qc7 19. Ng5 Nb6 $2 {4.42/24 [#]} (19... h6 { 2.43/25}) 20. a4 Bd7 21. Nge4 Bc6 22. Nxc5 Bxg2 23. Kxg2 Nc8 {4.75/25} (23... h6 $142 {3.06/27} 24. Rc3 Qc6+ 25. Kg1 Nd7) 24. Nce4 Nxd6 25. Nxd6 ({Weaker is } 25. exd6 Qd7 $18) 25... Rfd8 26. c5 Bf8 {2.98/26} (26... Qc6+ {2.02/26 was worth a try.} 27. Qf3 Rd7) 27. Qe4 {1.59/27} (27. Kh3 $18 {2.98/26}) 27... Rd7 $2 {4.26/23} (27... b6 $16 {1.59/27 keeps fighting.}) 28. b4 Rbd8 29. b5 axb5 30. axb5 Qb8 {6.23/25} (30... Rb8 $142 {4.23/28} 31. b6 Qd8) 31. c6 bxc6 32. bxc6 Rc7 33. Qc4 $2 {2.53/28} (33. Rb1 {6.50/27} Qa8 34. Rb7) 33... Qb2+ 34. Kh3 Qa3 $2 {12.59/26} (34... Qb6 {2.12/31} 35. Rc2 h5) 35. Nb5 Rxd1 36. Nxa3 Rxc1 37. Qxc1 {[#] Hoping for Nb5.} Bxa3 38. Qxa3 Rxc6 39. Qa8+ {Accuracy: White = 33%, Black = 23%.} 1-0

A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 c5 3.d3 Nf6 4.g3 Nc6 5.Bg2 e6 6.O-O)

[Event "ICC 10 0"] [Site "Internet Chess Club"] [Date "2014.11.11"] [Round "?"] [White "Kojjootti"] [Black "Vierjoki, Timo"] [Result "1-0"] [ECO "A03"] [WhiteElo "1553"] [BlackElo "1534"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "59"] [EventDate "2014.??.??"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 3. d3 Nf6 4. g3 Nc6 5. Bg2 e6 6. O-O {A03 Bird's Opening with 1...d5} Qb6 {0.87/22} (6... Be7 $15 { -0.36/22}) 7. Kh1 {-0.29/25} (7. c4 $16 {0.87/22}) (7. c3 Bd6 8. Qe1 c4+ 9. d4 Bd7 10. Nh4 O-O-O 11. Nd2 Rde8 12. Kh1 Ne7 13. e4 Nxe4 14. Bxe4 dxe4 15. Nxc4 Qc6 16. Ne5 Bxe5 17. fxe5 Nf5 18. Ng2 h5 19. Rf4 g5 20. Rxe4 h4 21. Bxg5 hxg3 { Hillmann,R (2022)-Filipiak,T (2149) Leipzig 2005 0-1}) 7... Bd6 {0.74/22 [#]} ( 7... Be7 $11 {-0.29/25 keeps the balance.} 8. c4 d4 9. Na3 h5 10. Nc2 h4 11. Nxh4 Nh5 12. Kg1 Bxh4 13. gxh4 Bd7 14. Bd2 a5 15. Ne1 Qc7 16. a3 Ne7 17. e4 dxe3 18. Bxe3 Nf5 19. Bd2 Nxh4 20. Be4 Bc6 21. Ng2 Nf5 22. Bc3 O-O-O { Porozhniak,M (2021)-Filippova,D (1955) Sochi 2018 0-1 (38)}) 8. Qe1 $146 { -0.19/26} (8. e4 $1 $16 {0.74/22}) (8. c3 Qc7 9. Qe1 b6 10. e4 Nd7 11. Qe2 e5 12. f5 f6 13. h3 dxe4 14. dxe4 Ndb8 15. Qf2 Qf7 16. Nbd2 Bb7 17. h4 Ne7 18. Kg1 c4 19. Qe2 b5 20. a4 Ba6 21. axb5 Bxb5 22. Rd1 Nd7 {Steadman,M (1473)-Fu,A Devonport 2016 1/2-1/2 (45)}) 8... O-O {0.36/25} (8... Qc7 $11 {-0.19/26}) 9. e4 $14 {Black must now prevent e5.} dxe4 {0.82/25} (9... Be7 $11 {0.00/27 remains equal.}) 10. dxe4 $16 Be7 11. Nc3 {-0.20/26} (11. b3 $14 {0.70/24}) 11... a6 {0.70/25} ({Better is} 11... Bd7 $11 {-0.20/26}) 12. e5 {0.17/28} (12. h3 $14 {0.70/25}) 12... Nd5 $11 {[#]} 13. Nxd5 {-0.53/25} (13. Ne4 $1 $16 { 0.82/28}) 13... exd5 $15 14. c3 {-0.67/24} ({White should play} 14. c4 $11 { -0.10/25} d4 15. Qd1) 14... Be6 {0.32/28} (14... Bf5 $15 {-0.67/24}) 15. h3 { -0.77/23} (15. Nd2 $14 {0.32/28 stays ahead.}) 15... Rfd8 {-0.12/26} (15... Rad8 $17 {-0.77/23}) 16. g4 $11 d4 17. f5 {-0.62/21} ({White should try} 17. Nd2 $11 {0.18/27}) 17... Bd5 {0.04/23} (17... Bc4 $15 {-0.62/21}) 18. Ng5 { -0.90/27} (18. e6 $11 {0.04/23}) 18... Bxg2+ 19. Kxg2 dxc3 {-0.07/31} (19... Bxg5 $15 {-0.54/24} 20. Bxg5 Re8) 20. bxc3 {And now f6 would win.} Rd3 $2 { 2.82/24} (20... Bxg5 $11 {-0.07/31} 21. Bxg5 Rd3) 21. f6 $18 {aiming for Qe4.} gxf6 $2 {8.01/22} (21... Nxe5 {2.84/28} 22. fxe7 Qc6+ 23. Qe4 f6) 22. exf6 { Qe4 is the strong threat.} Bd6 23. Qh4 Rg3+ 24. Kh1 Kf8 25. Qxh7 Ke8 26. Qxf7+ Kd8 {[#]} 27. Qg8+ {8.04/26} (27. Rb1 $142 $3 {22.80/24} Rxh3+ (27... Qxb1 28. Ne6+) 28. Kg2 Rg3+ 29. Kf2) 27... Kc7 28. Qxa8 $2 {0.00/26} (28. f7 $18 { 7.64/24} Ne7 29. Qe8 (29. Qxa8 $2 {loses.} Qc6+ 30. Rf3 Rxf3 $19) (29. Ne6+ $2 Kd7 $19) 29... Qc6+ 30. Qxc6+ Kxc6 31. f8=Q Rxf8 32. Rxf8) 28... Ne5 $2 { 17.21/23} (28... Nd8 $11 {0.00/26} 29. Ne4 Qc6) 29. Qe8 Rxc3 30. Ne6# { Accuracy: White = 25%, Black = 21%.} 1-0

A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 c5 3.d3 Nc6 4.g3 g6 5.Bg2 Bg7 6.O-O)

[Event "ICC 10 0"] [Site "Internet Chess Club"] [Date "2014.11.01"] [Round "?"] [White "Kojjootti"] [Black "Vierjoki, Timo"] [Result "1-0"] [ECO "A03"] [WhiteElo "1595"] [BlackElo "1559"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "45"] [EventDate "2014.??.??"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 3. d3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O {A03 Bird's Opening with 1...d5} Qb6 {0.91/26} (6... Nf6 $15 { -0.40/25 stays ahead.}) (6... b6 7. c3 Bb7 8. Qc2 Nf6 9. e4 c4 10. e5 cxd3 11. Qxd3 Ne4 12. Nbd2 Nc5 13. Qe3 e6 14. Nb3 Qe7 15. Nbd4 O-O 16. Nxc6 Bxc6 { 1/2-1/2 (16) Sydor,A (2395)-Estrin,Y (2450) Lublin 1974}) 7. e3 $146 {-0.76/24 [#]} (7. Nc3 $16 {0.91/26} Nf6 8. e4 dxe4 9. dxe4 Be6 10. e5 Ng4 11. Nd5 Bxd5 12. Qxd5 c4+ 13. Kh1 Nf2+ 14. Kg1 Ng4+ 15. Kh1 O-O 16. h3 Nb4 17. Qxc4 Rac8 18. Qb3 Nxc2 19. Qxb6 axb6 20. Rb1 Nge3 21. Bxe3 Nxe3 22. Rfc1 {Kuhn,U (2015) -Becker,R (2156) Griesheim 2003 0-1 (31)}) (7. c3 Nf6 (7... Nh6 8. e3 O-O 9. Qe2 Bg4 10. Nbd2 Rae8 11. h3 Bd7 12. e4 dxe4 13. dxe4 e5 14. Nc4 Qc7 15. fxe5 Nxe5 16. Nfxe5 Rxe5 17. Bf4 Bb5 18. b3 Qe7 19. Qd2 Rd8 20. Qc1 Bxc4 21. bxc4 g5 22. Bxe5 {Bautz,V-Katzich,A Germany 1995 1-0 (46)}) 8. Qe1 Bf5 9. h3 c4+ 10. d4 Bxb1 11. Rxb1 Ne4 12. Kh2 f5 13. Nd2 O-O 14. Nxe4 fxe4 15. e3 e6 16. b3 Rf7 17. Ba3 Qa6 18. Qc1 Rc8 19. Re1 Bf8 20. Bxf8 Rcxf8 21. bxc4 Qxc4 {Puls,T-Wallhof,D Germany 1991 1-0 (39)}) 7... Bxb2 $17 8. Bxb2 Qxb2 {Black is slightly better.} 9. Nbd2 Qb6 {0.40/24} (9... Nf6 $17 {-0.88/23}) 10. c4 {-0.13/23} (10. Rb1 $14 {0.40/24} Qc7 11. c4) 10... e6 {1.26/27} (10... Nf6 $11 {-0.13/23 remains equal.}) 11. cxd5 {0.58/25} (11. e4 $16 {1.26/27}) 11... exd5 $14 12. Ng5 { -0.51/23} (12. Qc1 $16 {0.96/25}) 12... Nf6 {0.00/26} (12... h6 $15 {-0.51/23} 13. Rb1 Qd8) 13. Kh1 $2 {-1.65/23} (13. Qc1 $11 {0.00/26}) 13... O-O $19 14. e4 dxe4 {-0.53/25} ({Better is} 14... Qd8 $17 {-1.51/22} 15. Rc1 Ng4) 15. Ngxe4 $15 Nxe4 16. dxe4 {-1.47/23} (16. Nxe4 $11 {-0.22/26} Bf5 17. Rb1 Bxe4 18. Rxb6 Bxg2+ 19. Kxg2 axb6 20. Qb3) 16... Be6 {-0.26/26} (16... Qc7 $17 {-1.47/23} 17. Nc4 Rd8) 17. f5 $11 {aiming for Rb1.} Bc8 {0.79/26 [#]} (17... Bd7 $11 { -0.26/26}) 18. Qg4 {-0.52/26} (18. Nc4 $1 $16 {0.79/26} Qd8 19. Qc1) 18... h6 { 0.58/24} (18... f6 $1 $15 {-0.52/26}) 19. Qh4 {White has compensation.} Kh7 $2 {12.44/23} (19... Ne5 $14 {0.37/27}) 20. Nf3 $2 {0.22/27} (20. fxg6+ $18 { 12.44/23} Kg7 21. Qf6+ Kg8 22. g7) 20... Bd7 $2 {#4/29} (20... Qd8 $11 {0.22/27 }) 21. Ng5+ {White mates.} Kg7 22. f6+ Kg8 23. Qxh6 {Accuracy: White = 24%, Black = 11%.} 1-0

A03 Bird's Opening with 1...d5 (1.f4 Nf6 2.Nf3 d5 3.b3 g6 4.Bb2 Bg7 5.e3 O-O 6.Be2 c5 7.O-O Nc6)

[Event "ICC 5 0"] [Site "Internet Chess Club"] [Date "2014.08.23"] [Round "?"] [White "Vierjoki, Timo"] [Black "pkktet"] [Result "1-0"] [ECO "A03"] [WhiteElo "1593"] [BlackElo "1460"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "93"] [EventDate "2014.??.??"] 1. f4 Nf6 {A03 Bird Opening} 2. Nf3 d5 3. b3 g6 4. Bb2 Bg7 5. e3 O-O 6. Be2 c5 7. O-O Nc6 {0.12/26 A03 Bird's Opening with 1...d5} (7... e6 $15 {-0.56/25}) 8. c4 {-1.30/23} (8. Ne5 $11 {0.12/26}) 8... d4 $1 $17 {Threatens to win with ... d3.} 9. exd4 {-1.74/24} (9. Qe1 $17 {-1.09/25}) 9... cxd4 $19 10. d3 {-2.11/23} (10. Ne5 $17 {-1.22/29 was called for.}) 10... Ng4 11. Qd2 $146 {-2.54/25} (11. Na3 $142 {-1.98/29} Ne3 12. Qe1) (11. Bc1 Ne3 12. Qd2 Nxf1 13. Kxf1 e5 14. fxe5 Nxe5 15. Nxe5 Bxe5 16. g3 Bh3+ 17. Kg1 f5 18. Ba3 Rf7 19. Bf3 Kg7 20. Bd5 Rf6 21. Qe1 Bc7 22. Nd2 f4 23. Ne4 Ra6 24. Bb4 fxg3 25. hxg3 Bf5 {Santos,L (1910) -Franca,J (1881) Itaborai 2012 0-1 (48)}) 11... Ne3 12. Rf2 {-2.66/27} (12. Na3 $142 {-1.85/26}) 12... Nb4 $4 {3.68/26} (12... Ng4 $19 {-2.66/27} 13. Rf1 Bh6) 13. Na3 $2 {-0.62/24} (13. Qxb4 $18 {3.68/26 aiming for Na3.} Nc2 14. Qd2 Nxa1 15. Bxa1) 13... a5 {0.40/25} (13... Qb6 $15 {-0.62/24}) 14. Rc1 $2 {-1.59/26} ( 14. h3 $14 {0.40/25 stays ahead.}) 14... Nxa2 $17 15. Ra1 Nb4 16. Ne5 $2 { -3.85/23 [#]} (16. h3 $17 {-1.21/26 is a better defense.}) 16... Nf5 {-1.56/26} (16... g5 $1 $19 {-3.85/23 and Black stays clearly on top. ...gxf4 is the strong threat.} 17. c5 (17. fxg5 Bxe5) 17... gxf4) 17. Nb5 {-2.57/23} (17. c5 $17 {-1.56/26}) 17... Nd6 $2 {0.10/28} (17... f6 $19 {-2.57/23} 18. Nf3 e5) 18. Nxd4 $11 Nf5 {1.03/24} (18... f6 $15 {-0.39/28} 19. Nef3 e5) 19. Nxf5 $1 $16 Bxf5 20. d4 f6 {1.17/25} (20... e6 $14 {0.57/26}) 21. Nf3 {0.09/26} (21. Ng4 $16 {1.17/25}) 21... e5 $1 $11 22. fxe5 fxe5 23. dxe5 {-0.24/27} (23. d5 $1 $16 {1.01/24}) 23... Qxd2 24. Nxd2 Rad8 25. Bf3 {-1.18/24} (25. Nf3 $11 {0.09/32}) 25... Nd3 $1 $17 26. Bd5+ {[#]} Kh8 $2 {0.09/28} (26... Rxd5 $1 $17 {-1.46/29} 27. cxd5 Nxb2) 27. Nf3 $1 $11 Nxf2 28. Kxf2 Bg4 $2 {1.28/25} ({Better is} 28... b6 $1 $11 {-0.26/28}) 29. Rxa5 $16 Ra8 {2.35/25} (29... Bxf3 $16 {1.41/31 might work better.} 30. gxf3 Rf5) 30. Rxa8 Rxa8 31. Bd4 Ra2+ 32. Kg3 h5 33. h3 Bxf3 {2.89/27} (33... Bc8 {1.61/29 was necessary.} 34. Be4 Ra3) 34. gxf3 $2 $18 {0.45/30 Endgame KRB-KB} ({Worse is} 34. Bxf3 Rd2 $11) ({Only move:} 34. Kxf3 $18 {2.89/27} b6 35. b4) 34... Rd2 $1 $14 35. Ba1 {0.09/32} (35. Bc3 $14 { 0.63/28} h4+ 36. Kxh4) 35... Rd3 $2 {8.54/29} (35... Kh7 $11 {0.09/32}) 36. b4 $2 {2.07/34} (36. e6 {8.54/29 Black must now prevent e7.} Re3 37. Be4) 36... b6 $2 {8.97/29} (36... Bf8 {2.07/34} 37. e6+ (37. Bxb7 Bxb4 38. e6+ Kg8 $14) 37... Kh7) 37. b5 {3.85/30} (37. e6 $142 {8.97/29}) 37... Bf8 {6.10/27 [#]} (37... h4+ $142 {3.85/30} 38. Kf2 (38. Kxh4 Rd1 $16) 38... Ra3) 38. e6+ $1 $18 Bg7 { 21.23/28} (38... Kh7 $142 {4.72/28} 39. Bf6 Bd6+ 40. Kg2 Re3) 39. Bxg7+ $2 { 0.00/42} (39. e7 $18 {21.23/28} Bxa1 40. e8=Q+ Kg7 41. Be4) 39... Kxg7 {KR-KB} 40. h4 {-0.56/37} (40. e7 $11 {0.00/42} Re3 41. Be4) 40... Kf6 $15 {Black has compensation.} 41. Kf4 Rd4+ 42. Kg3 Ke7 43. Kg2 $2 {-4.65/33} (43. Kh3 $15 { -0.56/45}) 43... Kd6 $2 {-0.56/46} ({Black should try} 43... Rxh4 $19 {-4.65/ 33 Strongly threatening ...Rd4.} 44. Kf2 g5) 44. Kg3 Rd3 {0.00/46} (44... Ke7 $15 {-0.56/39}) 45. Kf4 $1 $11 Rd1 $2 {9.25/28} (45... Rd4+ $11 {0.00/46} 46. Kg5 Ke7) 46. Kg5 $18 Rg1+ 47. Kf6 {Accuracy: White = 23%, Black = 21%.} 1-0

A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 c5 3.e3 Nc6 4.Bb5)

[Event "ICC 5 0"] [Site "Internet Chess Club"] [Date "2014.05.29"] [Round "?"] [White "josemacbez"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1446"] [BlackElo "1615"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "99"] [EventDate "2014.??.??"] {[%evp 9,99,-48,34,0,46,-27,22,-27,8,-17,19,-9,41,0,40,27,46,15,50,24,42,29,74, 0,32,0,6,-74,0,-122,-12,-44,0,-66,112,92,232,224,232,229,242,171,188,21,64, -323,304,-608,-606,-766,-766,-766,-766,-755,-723,-985,-1007,-1070,-1000,-965, -702,-915,-913,-1545,-1505,-1351,-1341,-29966,-29970,-13271,-6596,-6463,-6326, -29981,-29981,-6339,-1555,-29980,-29981,-29986,-29987,-29989,-29990,-29990, -29986,-29990,-29990,-29990,-29991,-29991,-29992,-29995]} 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 3. e3 Nc6 4. Bb5 {A03 Bird's Opening with 1...d5} e6 5. Ne5 (5. b3 Bd6 6. Bb2 f6 7. O-O Nge7 8. Na3 O-O 9. Qe1 Bd7 10. d4 Qe8 11. Bd3 a6 12. c4 Qh5 13. Qh4 Qxh4 14. Nxh4 cxd4 15. cxd5 exd5 16. exd4 Nxd4 17. Rad1 Ndc6 18. Nc2 Bc5+ 19. Kh1 Nb4 {Wagner,G (1780)-Taylor,R (1992) Fishguard 2016 1-0 (45)}) 5... Qb6 $146 {0.34/24} (5... Nge7 $15 {-0.48/27}) ( 5... Bd7 6. Bxc6 (6. Nxd7 Qxd7 7. Qf3 f5 8. b3 Be7 9. Bb2 Nf6 10. d3 O-O 11. Nd2 a6 12. Bxc6 Qxc6 13. c4 Rac8 14. Rb1 b5 15. O-O Rfd8 16. Rfd1 dxc4 17. dxc4 Rd3 18. Nf1 Qxf3 19. gxf3 bxc4 20. bxc4 Rcd8 {Poppner,D-Delander,A (2345) Berlin 1994 1/2-1/2 (48)}) 6... Bxc6 7. Nxc6 bxc6 8. O-O Nf6 9. b3 Be7 10. Bb2 O-O 11. d3 a5 12. a4 Qb6 13. Qe2 Rad8 14. Nd2 Nd7 15. Rad1 f5 16. Kh1 Bf6 17. Ba3 Rf7 18. e4 fxe4 19. dxe4 e5 20. f5 {Colta,M (1984)-Malkowski,K Poznan 2004 1-0 (40)}) 6. Bxc6+ bxc6 7. Qh5 {-0.27/27} (7. b3 $14 {0.46/23}) 7... Qc7 { 0.22/26} (7... g6 {-0.27/27 deserves consideration.} 8. Qe2 f6) 8. O-O { -0.27/27} (8. b3 $142 {0.22/26}) 8... Nf6 9. Qe2 (9. Qf3 {seems wilder.} Bd6 10. b3 O-O 11. Nc3 c4 12. bxc4 Rb8 13. d3) 9... a5 10. b3 Ba6 {0.41/25} (10... a4 $11 {-0.09/27}) 11. d3 {0.00/29} (11. c4 $14 {0.41/25}) 11... Bd6 12. Bb2 O-O 13. a4 Nd7 14. Nxd7 Qxd7 15. Nd2 Rab8 16. Rab1 {0.00/26} (16. Kh1 $16 { 0.74/23}) 16... f6 17. Qg4 Qe7 18. Rf3 {-0.74/25} (18. Kh1 $11 {0.06/28}) { [%tqu "En","","","","c5c4","",10]} 18... e5 {0.00/28} (18... c4 $1 $17 { -0.74/25 [%mdl 512]} 19. dxc4 (19. bxc4 dxc4) 19... dxc4 20. bxc4 Bb4) 19. Rh3 {-1.22/23} (19. fxe5 $11 {0.00/28} Bxe5 20. Bxe5 Qxe5 21. Rf2) 19... Bc8 { -0.12/28} (19... exf4 $17 {-1.22/23} 20. exf4 Bc8) 20. f5 $11 {[%tqu "En","", "","","c5c4","",10]} g6 $1 {0.00/29 [%mdl 512]} 21. e4 {-0.66/25} (21. Rf1 $11 {0.00/29}) (21. fxg6 Bxg4) {[%tqu "En","","","","c5c4","",10]} 21... dxe4 $2 { 1.12/23 [#]} (21... c4 $1 $15 {-0.66/25 keeps the upper hand.} 22. bxc4 dxe4 23. dxe4 Rb4) 22. dxe4 $16 Rb4 {2.32/24} (22... Bc7 $16 {0.92/29 was worth a try.}) 23. Nc4 $18 Bc7 24. Rd1 Rf7 25. Rhd3 Rg7 26. Qf3 $2 {0.21/30} ({White should play} 26. Qh3 $18 {1.88/28}) 26... gxf5 $11 {[%tqu "En","","","","b2c3", "",10]} 27. exf5 $2 {-3.23/29 [%mdl 8192]} (27. Bc3 $1 $14 {0.64/27 stays ahead.}) 27... Rb8 $4 {3.04/32 [%mdl 8192]} (27... e4 $19 {-3.23/29 and all is fine.} 28. Bxf6 Qxf6 29. Qxe4 Bxf5 30. Qe8+ Qf8 31. Qxf8+ Kxf8) {[%tqu "En","", "","","b2e5","",10]} 28. h3 $4 {-6.08/23 [%mdl 8192]} ({Weaker is} 28. Qxc6 Bb7 $14) (28. Bxe5 $1 $18 {3.04/32 [%mdl 512]} Bxf5 (28... Bxe5 29. Rd8+) 29. Bxc7 (29. Qxf5 fxe5 30. Rd7 Rf8 $16) 29... Bxd3 30. Bxb8 Bxc2 31. Rd2 Qe1+ 32. Qf1 Qxf1+ 33. Kxf1 Bxb3 34. Nxa5 Bxa4 35. Kf2) 28... e4 $19 29. Re1 exf3 {[#]} 30. Rxe7 Rxe7 31. Rxf3 Kf7 32. g4 Ba6 33. Ne3 Rbe8 34. Kf2 Be5 35. Bc1 Bd4 36. c4 Rb8 37. Kg3 Rxb3 38. Ng2 Rxf3+ 39. Kxf3 Bxc4 40. Nf4 Bd5+ 41. Nxd5 cxd5 42. Bd2 Ra7 43. Kf4 c4 {[%mdl 32] Black mates.} 44. g5 fxg5+ 45. Kxg5 c3 46. Bc1 c2 47. h4 Bc3 48. h5 d4 {[%mdl 32]} 49. f6 d3 50. Kh6 {Accuracy: White = 23%, Black = 19%.} 0-1

A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 c5 3.g3 Nc6 4.Bg2)

[Event "ICC 5 0"] [Site "Internet Chess Club"] [Date "2014.05.27"] [Round "?"] [White "guebourah"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1501"] [BlackElo "1563"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "40"] [EventDate "2014.??.??"] {[%evp 10,40,17,-12,97,35,97,-44,43,11,43,-22,17,-10,109,-65,-8,-57,-25,-38,0, -51,-35,-43,12,0,20,0,19,-509,-15,-761,-749]} 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 3. g3 Nc6 4. Bg2 {A03 Bird's Opening with 1...d5} g6 5. d3 (5. e3 Bg7 6. d4 cxd4 7. exd4 Bg4 8. c3 Nf6 9. O-O Qd7 10. Nbd2 Ne4 11. Qe1 Nxd2 12. Bxd2 O-O 13. Ne5 Nxe5 14. fxe5 Bh3 15. Bxh3 Qxh3 16. Qe2 Qe6 { 1/2-1/2 (16) Karlsson,L (2506)-Cicak,S (2532) Gothenburg 2006}) (5. O-O Bg7 6. e3 Nf6 7. Qe2 O-O 8. d3 Qb6 9. Kh1 Re8 10. Ne5 e6 11. Nxc6 Qxc6 12. c4 b5 13. cxb5 Qxb5 14. Nc3 Qa6 15. g4 Bb7 16. g5 Nd7 17. Bd2 Nb6 18. Nd1 Na4 19. Rb1 Bc6 {Lomakina,G (2023)-Utiatskaja,I (2123) Satka 2016 0-1 (70)}) 5... Bg7 6. c3 { LiveBook: 7 Games} e5 $146 {0.97/23} (6... b6 $11 {-0.12/28}) (6... e6 7. Qc2 Nge7 8. O-O O-O 9. e4 b5 10. a3 Bb7 11. Nbd2 Qb6 12. Rb1 Rac8 13. Kh1 b4 14. c4 dxe4 15. dxe4 a5 16. a4 e5 17. Nb3 Nd4 18. Nbxd4 exd4 19. b3 f5 20. Ne1 fxe4 21. Bxe4 {Ciechocinska Miecko,Z-Sosnowska,E (2030) Gdynia 1982 0-1 (48)}) 7. fxe5 {0.35/25} (7. Nxe5 $16 {0.97/23} Nge7 8. Nd2) 7... Nxe5 {0.97/26} (7... Nge7 $14 {0.35/25}) 8. O-O {-0.44/25} (8. Nxe5 $16 {0.97/26} Bxe5 9. Qb3) 8... Ne7 {0.43/25} ({Black should try} 8... Nxf3+ $15 {-0.44/25} 9. Bxf3 Ne7) 9. Nxe5 $14 Bxe5 10. Bh6 {-0.22/27} ({Better is} 10. Be3 $14 {0.43/24}) 10... Nf5 $11 11. Bf4 Bxf4 {1.09/24} (11... Qd6 $11 {-0.10/26 keeps the balance.}) 12. Rxf4 $2 {-0.65/24 [#]} ({White has to play} 12. Qa4+ $16 {1.09/24} Bd7 13. Qxf4 ) 12... O-O {-0.08/29} (12... Ne3 $15 {-0.65/24} 13. Qd2 Nxg2 14. Kxg2 O-O) 13. e4 {-0.57/22} (13. Qc1 $11 {-0.08/29}) 13... dxe4 (13... Ne3 $5 14. Qe2 Nxg2 15. Kxg2 dxe4 16. dxe4 Be6 $15) 14. Bxe4 Rb8 15. Qe2 {-0.51/24} (15. Nd2 $11 { 0.00/27}) 15... b6 16. Nd2 Ba6 {0.12/29} (16... Nd6 $15 {-0.43/21}) 17. Bxf5 gxf5 18. Rxf5 {And now Qf3 would win.} Bxd3 19. Rg5+ $2 {-5.09/27 [%mdl 8192] [#]} (19. Qg4+ $11 {0.19/28 and White has nothing to worry.} Kh8 20. Re5) 19... Kh8 $2 {-0.15/31} ({Black should play} 19... Qxg5 $19 {-5.09/27} 20. Qxd3 Rfd8) 20. Qf2 $2 {-7.61/24 [%mdl 8192]} (20. Qh5 $11 {-0.15/31}) 20... Qxg5 { Accuracy: White = 17%, Black = 4%.} 0-1 [Event "ICC 10 0 u"] [Site "Internet Chess Club"] [Date "2015.07.30"] [Round "?"] [White "Kojjootti"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1549"] [BlackElo "1558"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "76"] [EventDate "2015.??.??"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 3. g3 Nc6 4. Bg2 { A03 Bird's Opening with 1...d5} g6 5. O-O (5. e3 Bg7 6. d4 cxd4 7. exd4 Bg4 8. c3 Nf6 9. O-O Qd7 10. Nbd2 Ne4 11. Qe1 Nxd2 12. Bxd2 O-O 13. Ne5 Nxe5 14. fxe5 Bh3 15. Bxh3 Qxh3 16. Qe2 Qe6 {1/2-1/2 (16) Karlsson,L (2506)-Cicak,S (2532) Gothenburg 2006}) 5... Bg7 {0.18/25} (5... Nf6 $15 {-0.35/23}) 6. Nc3 {-0.52/24 } (6. d3 $11 {0.18/25}) (6. e3 Nf6 7. Qe2 O-O 8. d3 Qb6 9. Kh1 Re8 10. Ne5 e6 11. Nxc6 Qxc6 12. c4 b5 13. cxb5 Qxb5 14. Nc3 Qa6 15. g4 Bb7 16. g5 Nd7 17. Bd2 Nb6 18. Nd1 Na4 19. Rb1 Bc6 20. b3 Rab8 {Lomakina,G (2023)-Utiatskaja,I (2123) Satka 2016 0-1 (70)}) 6... e6 $146 {0.22/24} (6... Nh6 $15 {-0.52/24}) (6... Nf6 7. b3 O-O 8. Bb2 e6 9. Qe1 Bd7 10. e3 Nb4 11. Qd1 Rc8 12. a3 Nc6 13. d3 Ng4 14. Qe2 Qa5 15. Nd1 d4 16. h3 Nxe3 17. Nxe3 dxe3 18. Bxg7 Kxg7 19. Qxe3 Qc3 20. Ne5 Nxe5 21. Qxe5+ {Niedbal,P (1801)-Maruszczak,J (1845) Police 2015 1/2-1/2}) (6... d4 7. Ne4 Qb6 8. c4 Nf6 9. Nxf6+ Bxf6 10. d3 O-O 11. a3 a5 12. Rb1 Bd7 13. Bd2 Rfe8 14. b3 Bg7 {1/2-1/2 (14) Avner,U-Porat,Y Netanya 1971}) 7. Qe1 { -0.99/25} (7. e4 $11 {0.22/24}) 7... Nb4 {-0.16/24} (7... Nge7 $17 {-0.99/25}) 8. Qd1 $11 {The position is equal.} Bd7 {0.27/26} (8... Ne7 $15 {-0.50/23}) 9. Ne5 {-0.80/23} (9. Rb1 $11 {0.27/26}) 9... Nf6 {0.46/24} (9... Ne7 $17 { -0.80/23}) 10. Nxd7 {-0.50/26} (10. d3 $14 {0.46/24}) 10... Nxd7 {0.60/20} ({ Much weaker is} 10... Kxd7 $6 11. d3 $11) (10... Qxd7 $15 {-0.50/26} 11. a3 Nc6 ) 11. a3 {0.15/26} (11. e4 $14 {0.60/20}) 11... Nc6 12. Qe1 $2 {-0.91/22} (12. d3 $16 {0.92/25 stays on course.}) 12... Nd4 $36 {Black has some pressure.} 13. Qd1 {[#]} O-O $2 {0.57/26} (13... h5 $1 $17 {-1.13/24}) 14. e3 {-0.21/23} (14. d3 $1 $14 {0.57/26}) 14... Nf5 15. Qe1 {-1.13/24} (15. d3 $11 {-0.03/26 keeps the balance.}) 15... Rb8 {-0.12/25} ({Better is} 15... c4 $17 {-1.13/24} 16. g4 Nh4) 16. d3 d4 {0.00/25} (16... Qb6 $15 {-0.41/24}) 17. Ne4 {-0.67/24} (17. Nd1 $11 {0.00/25}) 17... dxe3 {-0.02/26} ({Don't play} 17... Nxe3 $6 18. Bxe3 dxe3 19. c3 $11) (17... Nb6 $15 {-0.67/24}) 18. Bxe3 $2 {-7.02/22} (18. c3 $11 { -0.02/26}) 18... Bxb2 $2 {-2.20/27} (18... Nxe3 {-7.02/22} 19. Rf2 Bxb2) 19. Rb1 $2 {-4.10/23} (19. Bd2 {-2.20/27}) 19... Nxe3 $19 20. Qxe3 $2 {-10.33/21} ( 20. Rxb2 {-3.76/23} Nxf1 21. Kxf1) 20... Bd4 21. Qxd4 cxd4 22. Ng5 b6 23. Nf3 Nc5 24. Rb4 {[#]} e5 $1 25. fxe5 (25. Nxe5 Rc8) 25... Ne6 26. Bh3 Re8 27. Bxe6 Rxe6 28. Rxd4 Qc7 29. Re4 Qxc2 30. Ng5 Re7 31. e6 f5 32. Rh4 Qxd3 33. Re1 Rc8 { ( -> ...Rc2)} 34. Nf7 Rc2 {Black mates.} 35. Nh6+ Kg7 36. g4 Qd4+ 37. Kh1 Qd5+ 38. Kg1 Qg2# {Accuracy: White = 5%, Black = 12%.} 0-1

A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 Nf6 3.g3 c5 4.Bg2 Nc6)

[Event ""] [Site "?"] [Date "2012.11.28"] [White "Kojjootti"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "116"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 Nf6 3. g3 c5 4. Bg2 Nc6 { A03 Bird's Opening with 1...d5} 5. c3 e6 {0.20/25} (5... g6 $15 {-0.46/23}) ( 5... b6 6. O-O Bb7 7. d4 e6 8. e3 Be7 9. Nbd2 O-O 10. Ne5 Rc8 11. h3 cxd4 12. exd4 a5 13. Qe1 b5 14. f5 Qc7 15. g4 Nd7 16. fxe6 Ndxe5 17. dxe5 Nxe5 18. exf7+ Nxf7 19. Nf3 Nd6 20. Nd4 {Haraldsson,L (1942)-Svane,F (1608) Helsingor 2018 1-0 }) 6. O-O {-0.51/23} (6. d3 $11 {0.20/25}) 6... Bd6 {0.51/26} (6... Be7 $15 { -0.51/23}) (6... Qc7 7. d4 Be7 8. e3 O-O 9. Nbd2 Rb8 10. a4 Ng4 11. Nb3 c4 12. h3 Nxe3 13. Bxe3 cxb3 14. Qxb3 Na5 15. Qc2 Nc4 16. Bf2 b5 17. axb5 Rxb5 18. b3 Na5 19. Nd2 Qb8 20. Rfb1 Bb7 21. Bf1 {Palermo,V (2220)-Quatrini,A (2140) Mar del Plata 1999 1-0}) 7. d4 $146 {-0.61/22} (7. d3 $14 {0.51/26} O-O 8. Nh4 d4 9. Na3 Nd5 10. Qe1 Be7 11. Nf3 Bf6 12. Bd2 a6 13. Rc1 Bd7 14. Nc2 Rc8 15. e4 dxe3 16. Nxe3 Nce7 17. Ng4 Ng6 18. Nxf6+ Nxf6 19. Ne5 Qc7 20. Qe2 Nd5 21. c4 Nde7 22. Bc3 {Praxmarer,C (1992)-Heinrich,T (2144) Austria 2015 0-1 (48)}) 7... O-O 8. Qc2 {-1.25/23} (8. Be3 $11 {-0.24/24}) 8... Qb6 {-0.33/26} (8... b6 $17 {-1.25/23} 9. e3 Ba6) 9. e3 $15 Ne4 {-0.18/22} (9... Bd7 $17 {-0.95/23}) 10. Ne5 {-0.59/22} (10. b3 $11 {-0.18/22}) 10... f5 11. Nf3 {-0.91/21} (11. Nd2 $11 {-0.19/24 keeps the balance.}) 11... Bd7 12. Nbd2 Rac8 {-0.40/27} (12... Be8 $17 {-1.01/22}) 13. Qd1 {-1.20/23} (13. Ne5 $15 {-0.40/27} Qc7 14. Nxe4 dxe4 15. Qe2) 13... Nf6 {-0.57/24} (13... Be8 $17 {-1.20/23}) 14. h3 {-1.70/22} ({ White should play} 14. b3 $15 {-0.57/24}) 14... Be8 {-0.71/26} (14... cxd4 $19 {-1.70/22 is more deadly.} 15. exd4 e5 16. fxe5 Nxe5 17. Nxe5 Bxe5) 15. Ne5 { -1.64/22} (15. Kh2 $17 {-0.71/26}) 15... Ne4 {-0.55/27} (15... cxd4 $19 { -1.64/22} 16. cxd4 Nb4) 16. Nxe4 fxe4 17. Qg4 {-1.26/25} ({White should try} 17. Nxc6 $15 {-0.62/26} bxc6 18. dxc5 Bxc5 19. Qe2) 17... Nd8 {-0.53/26} (17... Rf6 $17 {-1.26/25} 18. Qd1 Be7) 18. b3 {-1.67/25} (18. h4 $15 {-0.53/26}) 18... cxd4 $19 19. cxd4 Qa5 {-0.72/33} (19... Bb5 $1 $19 {-1.79/25 has better winning chances.} 20. Rd1 Rf5) 20. Qd1 $17 Bb4 21. a3 {-1.28/25} (21. a4 $142 { -0.83/29}) 21... Bb5 {-0.67/32} (21... Nf7 $17 {-1.28/25} 22. Kh2 Bb5) 22. Rf2 $1 $15 Be1 23. Rc2 {-1.74/28} (23. Rfa2 $15 {-0.45/31} Bc3 24. Bb2) 23... Rxc2 $19 24. Qxc2 Bxg3 $2 {-0.11/28} ({Better is} 24... Nf7 $19 {-1.96/26} 25. Bb2 Nxe5 26. dxe5 Bxg3) 25. Bd2 $11 Qa6 {0.24/29} (25... Qb6 $142 {-0.29/31} 26. Bb4 Rxf4) 26. a4 Be2 27. Qc8 $2 {-1.82/26} (27. Bb4 $11 {0.30/30} Re8 28. Rc1) 27... Nf7 $36 {-1.32/30 White is under strong pressure.} (27... Bh5 $19 { -1.82/26 And now ...Qe2 would win.} 28. Bf1 Qd6) 28. Qd7 $17 Nxe5 29. dxe5 { Hoping for Rc1.} Qb6 $2 {0.32/30} (29... Qc6 $17 {-1.59/28} 30. Qxc6 bxc6) 30. Rc1 $1 $14 Bxf4 $2 {2.69/31 [#]} ({But not} 30... Qxb3 $6 31. Qxe6+ Kh8 32. Bxe4 $1 $16) (30... Bh5 $1 $11 {0.00/29 and Black has nothing to worry.} 31. Rc7 Bf7 32. Rxb7 Qc5) 31. Rc8 $4 {-1.84/30} (31. a5 $1 $18 {2.69/31 is the narrow road to win.} Bxe3+ 32. Kh2 Bg1+ 33. Rxg1) 31... Bxe3+ $19 32. Bxe3 Qxe3+ 33. Kh2 $2 {-6.37/22} (33. Kh1 $17 {-1.51/29} Qh6 34. Rxf8+ Kxf8 35. Qc8+ Kf7 36. Qd7+ Kg6 37. Qxe6+ Kg5 38. Qxd5) 33... Qf4+ 34. Kh1 Qxe5 35. Re8 Bf3 36. Qe7 Bxg2+ 37. Kxg2 {Endgame KQR-KQR} Qb2+ 38. Kh1 Qf6 39. Rxf8+ Qxf8 40. Qxe6+ {KQ-KQ} Kh8 41. Qxd5 Qf3+ 42. Kg1 {White threatens Qd8+ and mate.} h6 43. Qxb7 {-36.32/24} (43. Kh2 $142 {-4.86/28} b6 44. Qe6) 43... Qg3+ 44. Kf1 Qxh3+ 45. Ke1 Qe3+ {-7.01/29} (45... Qh1+ $142 {-22.10/26} 46. Ke2 Qf3+ 47. Ke1 Kh7) 46. Kd1 Qd3+ 47. Kc1 e3 48. Qc8+ Kh7 {( -> ...e2)} 49. Qc2 Qg6 50. b4 $2 { -15.28/24} (50. Qe2 {-3.79/30} h5 51. Qxe3) 50... h5 51. Qxg6+ Kxg6 {KP-KP. Black mates.} 52. Kd1 Kf6 53. Ke2 g5 54. b5 Ke6 55. a5 Kd6 56. b6 axb6 57. a6 Kc7 58. Kxe3 g4 {Accuracy: White = 19%, Black = 26%.} 0-1 [Event "Limitless Chess vs France/Deutschland G"] [Site "Chess.com"] [Date "2015.07.07"] [Round "?"] [White "Blutsvente"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1726"] [BlackElo "1963"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "22"] [EventDate "2015.??.??"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 3. g3 Nc6 4. Bg2 Nf6 { A03 Bird's Opening with 1...d5} 5. Ne5 $146 (5. c4 d4 6. O-O e6 7. d3 Be7 8. Kh1 O-O 9. e4 dxe3 10. Bxe3 Qc7 11. Nc3 a6 12. Qe2 Rd8 13. Ne4 b6 14. a3 Bb7 15. Rfd1 Nxe4 16. dxe4 e5 17. fxe5 Nxe5 18. Bf4 Bf6 19. Rxd8+ Rxd8 {Pavlenko, O-Agzamov,G Toshkent 1973 1/2-1/2 (52)}) (5. e3 Bf5 (5... e6 6. d3 Be7 7. O-O O-O 8. Nc3 b6 9. Ne2 Bb7 10. h3 Qc7 11. g4 e5 12. Ng3 Rfe8 13. g5 Nd7 14. Nf5 Bf8 15. Nh2 Ne7 16. Ng3 exf4 17. exf4 f5 18. gxf6 Nxf6 19. Ng4 Nxg4 20. Qxg4 { Schmitt,D (1975)-Ruettinger,M (1910) Bayern 2002 1-0}) (5... Bd7 6. d3 Qc7 7. Nc3 a6 8. a4 O-O-O 9. Bd2 h6 10. Ne2 e5 11. O-O Be7 12. c3 Be6 13. b4 e4 14. Ne1 Qb6 15. bxc5 Qxc5 16. d4 Qd6 17. a5 h5 18. f5 Bd7 19. Bh3 g5 20. Qb3 { Ruessmann,P-Liley,U Hohenlimburg 1978 0-1 (36)}) 6. O-O e6 7. d3 Bd6 8. h3 O-O 9. Nbd2 h6 10. Re1 Re8 11. e4 Bh7 12. e5 Bc7 13. exf6 Qxf6 14. Nf1 Ne7 15. c3 Rad8 16. d4 c4 17. Be3 b5 18. Qd2 a5 19. N1h2 Nf5 {Martin Perez,F-Gil Gonzales, J (2365) Spain 1991 0-1 (46)}) (5. b3 g6 6. O-O Bg7 7. Bb2 O-O 8. c4 dxc4 9. bxc4 Qc7 10. Nc3 Be6 11. d3 Rad8 12. Qb3 Ng4 13. Nb5 Qb6 14. Bxg7 Kxg7 15. Rfb1 Ne3 16. Qc3+ Kg8 17. a4 Nb4 18. a5 Qa6 19. Nc7 Qc6 {Bailey,G-Lubben,D Grand Rapids 1989 1-0 (67)}) 5... Qc7 {0.27/27} (5... h5 $15 {-0.46/23}) 6. Nxc6 $11 Qxc6 {0.53/22 [#]} (6... bxc6 $15 {-0.48/24} 7. c4 e6) 7. c4 $1 {-0.24/27} e6 { 0.59/24} (7... g6 $11 {-0.24/27}) (7... dxc4 8. Bxc6+) 8. Nc3 {-0.61/23} (8. d3 $1 $14 {0.59/24}) 8... Qd7 {0.25/24} (8... b6 $15 {-0.61/23}) 9. cxd5 {-0.28/24 } (9. d3 $142 {0.25/24}) 9... exd5 10. Qb3 {-0.37/24} (10. d3 $11 {0.06/24 was preferrable.}) 10... d4 $15 11. Nd5 Nxd5 {0.50/23 Accuracy: White = 23%, Black = 17%. . Loss on time!?} ({Better is} 11... Be7 $1 $15 {-0.62/25}) 0-1

A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 Nf6 3.e3 c5 4.b3 Nc6 5.Bb2 e6 6.Be2 Be7 7.O-O O-O)

[Event ""] [Site "?"] [Date "2011.10.09"] [White "SP"] [Black "Vierjoki, Timo"] [Result "1-0"] [ECO "A03"] [WhiteElo "1906"] [BlackElo "1844"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "93"] 1. f4 d5 2. Nf3 Nf6 3. e3 c5 {A03 Bird Opening: Lasker Variation} 4. b3 Nc6 5. Bb2 e6 6. Be2 Be7 7. O-O O-O {0.39/25 A03 Bird's Opening with 1...d5} (7... b6 $11 {-0.08/29 is superior.}) 8. d4 {-0.35/24} (8. Ne5 $1 $14 {0.39/25}) 8... Qb6 $146 {0.09/26} (8... Ng4 $15 {-0.35/24} 9. Qd3 b6) (8... Ne4 9. Nbd2 f5 10. Ne5 cxd4 11. exd4 Nxe5 12. Nxe4 fxe4 13. fxe5 Bd7 14. Qd2 Qc7 15. c4 Rae8 16. Qc3 a6 17. Qh3 Bc8 18. Rac1 Qa5 19. Bg4 Rxf1+ 20. Rxf1 Bg5 21. cxd5 Qd2 22. Qc3 Qxc3 23. Bxc3 {Borisovaite,A (1400)-Barsciauskas,G (1672) Klaipeda 2017 0-1 (37)}) (8... cxd4 9. Nxd4 Qb6 10. Kh1 (10. Nd2 Nxd4 11. exd4 Bd7 12. a4 Rac8 13. Kh1 Qc7 14. Bd3 Bd6 15. Qf3 Bc6 16. Rae1 Ne4 17. Re2 f5 18. Nb1 Rf6 19. Ba3 Bxa3 20. Nxa3 Qe7 21. Nb1 Rh6 22. Bxe4 dxe4 23. Qe3 Qh4 24. g3 Qh3 {Hatchett,P (1945)-Stayt,J (1983) England 2013 1-0 (47)}) 10... Bd7 11. Nd2 Rac8 12. Bd3 g6 13. N2f3 Ne8 14. Qe2 Bf6 15. Nxc6 Bxc6 16. Ne5 Bg7 17. Ba3 Qa5 18. Bxf8 Kxf8 19. Qe1 Qa3 20. Qd2 Nd6 21. c3 Be8 22. Rac1 b5 23. Rc2 {Duran,M-Martinez,C (2247) Cartagena 2011 0-1 (47)}) 9. Qc1 {-0.61/20} (9. Ne5 $11 {0.09/26}) 9... Ne4 {0.14/29} (9... Rd8 $15 {-0.61/20}) 10. c4 {-0.59/25} (10. Nc3 $11 {0.14/29 }) 10... Nb4 {0.38/25} (10... Rd8 $15 {-0.59/25}) 11. Nc3 $14 Nxc3 12. Qxc3 { [#] Threatens to win with dxc5.} Bf6 {0.97/24} ({Better is} 12... f6 $14 { 0.44/27}) 13. Ne5 $16 cxd4 14. exd4 Rd8 {1.69/30} (14... dxc4 $16 {0.84/26} 15. bxc4 (15. Nxc4 Nd5 $14) (15. Qxc4 Rd8 $11) 15... Nc6) 15. c5 $18 Qa5 16. a3 Nc6 17. b4 Qc7 18. Qh3 {0.80/27} (18. b5 $18 {1.95/24 is more deadly.}) 18... g6 { 1.35/25} (18... a6 $142 {0.80/27}) 19. Bd3 {0.77/27} (19. b5 $142 {1.35/25} Ne7 20. a4) 19... Bg7 {1.27/26} ({Black should try} 19... a6 {0.77/27}) 20. b5 $36 {White is really pushing.} Ne7 21. Qf3 {0.75/30} (21. Qe3 $142 {1.32/24}) 21... Bd7 {1.35/23} (21... f6 $142 {0.75/30}) 22. Bc3 {0.91/28} ({White should play} 22. a4 {1.35/23}) 22... Be8 23. a4 Rdb8 {1.58/24} (23... f6 $142 {0.95/26}) 24. h4 {0.75/27} (24. Qf2 $142 {1.58/24}) 24... Kf8 $2 {2.51/21} (24... f6 $16 { 0.75/27}) 25. Rfe1 $2 {0.94/28} (25. h5 $18 {2.51/21 has better winning chances.}) 25... Bd7 $2 {2.89/21} (25... f6 $16 {0.94/28}) 26. h5 $18 Ng8 $2 { 6.02/24} (26... a6 {2.66/25} 27. hxg6 hxg6) 27. Bb4 Ke8 28. Rac1 Nf6 29. hxg6 hxg6 30. g4 a6 31. g5 Ng8 32. Qh3 Bxe5 33. fxe5 axb5 34. Qh8 Rxa4 35. Rb1 { 6.07/30} (35. c6 $142 {16.78/25} Bxc6 36. Rf1) 35... Ke7 36. Qg7 Bc6 37. Rf1 Rf8 38. Bxg6 Be8 {[#]} 39. c6+ {10.99/27} (39. Bxf7 $142 $1 {#22/29} Bxf7 40. g6 Nh6 41. Qxh6 Ke8 42. gxf7+ Qxf7 43. Rxf7 Rxf7 44. Qxe6+ Kf8 45. Bd2) 39... Rxb4 40. Rxb4 bxc6 41. Bh7 Qa5 42. Rbb1 Qc3 43. Kg2 ({And not} 43. Bxg8 Qg3+ 44. Kh1 Qh3+ 45. Kg1 Qg3+ 46. Kh1 Qh3+ 47. Kg1 Qg3+ $11) 43... Qxd4 {intending ...Qg4+.} 44. Kg3 ({Not} 44. Bxg8 Qg4+ 45. Kh1 Qh3+ 46. Kg1 Qg3+ 47. Kh1 Qh3+ 48. Kg1 Qg3+ 49. Kh1 Qh3+ $11) 44... Qe3+ 45. Rf3 Qd2 46. Bxg8 b4 47. Rbf1 { 47.62/27 Accuracy: White = 28%, Black = 11%.} (47. Ra1 $142 {#24/28} Kd8 48. Qxf8 Qxg5+ 49. Kh3 Qh5+ 50. Kg2 Qg4+ 51. Rg3 Qe4+ 52. Kh3) 1-0 [Event "ICC 5 0"] [Site "Internet Chess Club"] [Date "2019.03.06"] [Round "?"] [White "RowenBub"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1677"] [BlackElo "1666"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "68"] [EventDate "2019.??.??"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. b3 Nf6 3. Bb2 e6 4. Nf3 Be7 5. e3 O-O 6. Be2 c5 7. O-O Nc6 {0.40/26 A03 Bird's Opening with 1...d5} (7... b6 $15 {-0.47/25}) 8. Bb5 {-0.66/22} (8. Ne5 $14 {0.40/26}) 8... Qb6 {0.02/27} ( 8... Na5 $15 {-0.66/22}) (8... Bd7 9. a4 (9. Qe2 Qc7 10. d3 a6 11. Bxc6 Bxc6 12. Ne5 Nd7 13. Nd2 f6 14. Nxc6 Qxc6 15. Nf3 Bd6 16. g3 e5 17. fxe5 Nxe5 18. Nxe5 Bxe5 19. Bxe5 fxe5 20. e4 {1/2-1/2 (20) Rossello Padron,C (1863)-Moyano Garcia,R (2009) Las Palmas 2015}) 9... a6 10. Bxc6 Bxc6 11. Ne5 Be8 12. a5 Rc8 13. d3 Nd7 14. Nd2 f6 15. Nxd7 Qxd7 16. e4 Bg6 17. Qe2 Bd6 18. h4 h5 19. Qf3 Bc7 20. Rf2 Qc6 21. Ra4 c4 22. exd5 exd5 23. dxc4 {Karlsson,L (2469)-Ivanov,S (2536) Sweden 2011 0-1 (46)}) 9. a4 $146 {-0.74/24} (9. Bxc6 $11 {0.02/27} bxc6 (9... Qxc6 10. Ne5 Qc7 11. d3 b5 12. Rf3 Nd7 13. Rg3 g6 14. Nxd7 Bxd7 15. Qh5 f6 16. Rxg6+ hxg6 17. Qxg6+ {1/2-1/2 (17) Falahat,S-Daumen,M Speyer 1997}) 10. Nc3 (10. Qe1 Ba6 11. d3 c4 12. Ne5 cxd3 13. cxd3 c5 14. Qg3 Rad8 15. Nd2 Bb7 16. Rac1 a5 17. Rb1 Qb4 18. Ndf3 d4 19. exd4 cxd4 20. Rfc1 Bxf3 21. Nxf3 Qb6 22. Rc4 Bc5 23. Rbc1 Rd5 24. h3 Nh5 {Hoang,K (1571)-Chernih,N (1552) Canberra 2004 0-1 (42)}) 10... Ba6 11. Na4 Qa5 12. d3 Rfd8 13. Ne5 Rac8 14. Qe1 Qb4 15. c3 Qb7 16. c4 Qb4 17. Bc3 {1/2-1/2 (17) Kirjak,R (2034)-Toth,J (2206) Hungary 2006}) 9... a6 {0.15/26} (9... Ne4 $17 {-0.74/24}) 10. Bxc6 $11 {The position is equal.} Qxc6 {0.17/26} (10... bxc6 $15 {-0.35/25} 11. a5 Qd8) 11. Qe1 { -0.83/26} (11. Ne5 $11 {0.17/26 remains equal.} Qe8 12. d3) 11... b6 {-0.16/27} (11... b5 $17 {-0.83/26}) 12. d3 Bb7 13. Nbd2 {-0.67/22} (13. Qg3 $11 {-0.24/27 }) 13... b5 {-0.04/25} (13... Rad8 $15 {-0.67/22}) 14. Ne5 {-0.67/22} (14. Qg3 $11 {-0.04/25}) 14... Qc7 15. Kh1 {-0.88/24} (15. c4 $15 {-0.37/25}) 15... Rfd8 {-0.01/25} (15... Ne8 $17 {-0.88/24}) 16. g4 {-0.96/24} (16. Ndf3 $11 {-0.01/25 }) 16... d4+ {-0.10/24} (16... Ne8 $17 {-0.96/24}) 17. e4 Nd7 18. Nxd7 Rxd7 ( 18... Qxd7 {feels hotter.} 19. g5 Rf8 20. Nf3 Bd6 21. axb5 axb5 22. Rxa8 Rxa8 23. b4 c4) 19. f5 exf5 {0.23/26} ({Better is} 19... Rdd8 $15 {-0.34/22}) 20. gxf5 Bf6 {0.62/24} (20... Rc8 $11 {0.09/28}) 21. axb5 {0.11/26} ({White should try} 21. Rg1 $14 {0.62/24}) 21... axb5 22. Rxa8+ Bxa8 23. Qa1 {-0.32/22} (23. Nf3 $11 {0.26/26}) 23... Qb7 24. Nf3 Bd8 $2 {1.74/24 [#]} (24... Qb8 $11 { 0.00/29 and Black is okay.}) 25. Rg1 {0.37/30} (25. b4 $1 $18 {1.74/24}) 25... Bc7 $2 {3.54/22 [#]} (25... b4 $14 {0.37/30}) 26. Ba3 $2 {0.00/27} ({Only move: } 26. b4 $1 $18 {3.54/22}) 26... c4 $2 {#6/26 [#]} (26... b4 $11 {0.00/27} 27. Bc1 f6) 27. bxc4 $2 {3.66/28} (27. Rxg7+ $3 {#6/26} Kh8 (27... Kxg7 28. Qg1+) 28. Rg8+ $3 Kxg8 29. Qg1+ Bg3 30. Qxg3+ Kh8 31. f6 cxd3 32. Qg7#) 27... bxc4 $2 {32.36/28 [#]} (27... g6 {3.66/28} 28. Qc1 (28. Nxd4 Be5 $11) 28... Qb8 29. cxb5 Bf4) 28. Qc1 $2 {0.00/31} ({White has to play} 28. Rxg7+ $3 $18 {32.36/28} Kxg7 29. Qg1+ Kh8 30. f6 Qb1 31. Bc1 Qxc1 32. Qxc1 Bf4 33. Qxf4) 28... cxd3 $2 {#7/28 [#]} (28... f6 $11 {0.00/31}) 29. cxd3 $2 {1.65/28} (29. Rxg7+ $3 {#7/28 } Kxg7 30. f6+ $1 Kh8 31. Qg5 Qb1+ 32. Kg2 Qg1+ 33. Kxg1 Bxh2+ 34. Nxh2 dxc2 35. Qg7#) 29... Bb8 $2 {#7/46} (29... Bd8 $18 {1.65/28}) 30. Qc5 $2 {2.73/32} ( 30. f6 {#7/46 mates} Rd6 31. Qh6 Kf8 32. fxg7+ Ke7 33. g8=Q Qb5 34. Qhf8+ Kd7 35. Qc8+ Ke7 36. Qgd8#) 30... Rd8 $18 {[#]} 31. Nxd4 $2 {-0.52/28} (31. Qa5 $1 $18 {2.41/25} Qc7 32. Qxa8) 31... Ba7 {0.00/35} ({Black should play} 31... Bd6 $1 $15 {-0.52/28} 32. Qc3 (32. Qa5 Bc7 $15) 32... Be5) 32. Qe5 $2 {-10.37/25} ( 32. Rxg7+ $11 {0.00/35} Kh8 33. Qa5) 32... Bxd4 $19 33. Rxg7+ Kh8 34. Qg3 Bxg7 {Accuracy: White = 9%, Black = 14%.} 0-1

A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 Nf6 3.e3 c5 4.Bb5+ Bd7 5.Bxd7+ Nbxd7 6.b3 e6 7.Bb2 Be7 8.O-O O-O)

[Event "ICC 15 0"] [Site "Internet Chess Club"] [Date "2011.09.03"] [Round "?"] [White "C-stone"] [Black "Vierjoki, Timo"] [Result "1-0"] [ECO "A03"] [WhiteElo "1710"] [BlackElo "1864"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "89"] [EventDate "2011.??.??"] {[%evp 15,89,0,8,-12,0,0,10,0,0,-8,17,-12,-6,-12,0,-16,189,193,181,170,186,180, 396,435,453,445,456,428,575,548,490,312,304,123,144,118,120,106,100,112,116,93, 244,244,262,260,268,267,327,312,475,497,912,888,817,825,1006,997,5720,3083, 29985,29986,29991,29992,29995,29996,29996,29997,29997,29998,29998,29997,29997, 29996,29997,29998]} 1. f4 d5 2. Nf3 Nf6 3. e3 c5 {A03 Bird Opening: Lasker Variation} 4. Bb5+ Bd7 5. Bxd7+ Nbxd7 6. b3 e6 7. Bb2 Be7 8. O-O O-O {A03 Bird's Opening with 1...d5} 9. Qe1 Ne4 {[%mdl 32]} (9... Ne8 10. Qg3 Bf6 11. Bxf6 Qxf6 12. d4 cxd4 13. exd4 Rc8 14. c3 Qg6 15. Qf2 Nd6 16. Qb2 Ne4 17. Nbd2 Ndf6 18. c4 Rfd8 19. c5 Ng4 20. Nxe4 Qxe4 21. Qd2 Qe3+ 22. Kh1 Qxd2 23. Nxd2 Ne3 24. Rfc1 {Narmontas,M (2151)-Lichman,P (2126) Oropesa del Mar 2001 0-1 (61) }) (9... Qc7 10. Qg3 Rfe8 11. d3 Bf8 12. Ne5 Nxe5 13. Bxe5 Qd8 14. Nd2 g6 15. Nf3 Bg7 16. Bb2 Nh5 {1/2-1/2 (16) Larrea,O (1768)-Mordetzki,A Montevideo 2017}) 10. d3 Nd6 11. Nbd2 {The position is equal.} Bf6 12. Bxf6 $146 (12. Ne5 Bxe5 { 1/2-1/2 (12) Mangold,T (1410)-Schulze,C (1684) Mecklenburg VP 2005}) 12... Nxf6 13. Ne5 b5 14. Qh4 Nf5 15. Qh3 Qb6 $2 {1.89/22 [#]} (15... Nd7 $11 {-0.16/26 and Black stays safe.}) 16. g4 $18 {[%mdl 32]} Ne7 17. g5 Ne8 18. Nd7 $36 { [%mdl 2048] White is on the roll.} Qd6 $2 {3.96/24} (18... Qa5 {1.80/25 was necessary.}) 19. Nxf8 Kxf8 20. Qxh7 Nf5 21. Rae1 Ke7 22. e4 dxe4 23. Nxe4 Qd4+ 24. Nf2 {1.23/28} (24. Rf2 $18 {3.04/24 and White stays clearly on top.}) 24... Ne3 $16 25. Rxe3 Qxe3 26. Qe4 Qxe4 27. Nxe4 {[%mdl 4096] Endgame KRN-KRN} Rc8 28. c4 {[%mdl 32]} Nd6 $2 {2.44/27} (28... bxc4 $16 {0.93/31} 29. dxc4 (29. bxc4 Nd6 $16) 29... Nd6 30. Nxd6 Kxd6) {[%tqu "En","","","","e4d6","",10]} 29. Nxd6 $1 $18 Kxd6 30. cxb5 {KR-KR} Rb8 {[%tqu "En","","","","a2a4","",10]} 31. a4 $1 Rb6 32. f5 e5 {4.75/27} (32... Kd7 $142 {3.12/29} 33. fxe6+ Kxe6) 33. h4 {[%mdl 32]} a6 {9.12/31} (33... Rb8 $142 {4.97/32} 34. Kg2 Rh8) 34. bxa6 Rxa6 35. h5 {[#] f6 is the strong threat.} Kd5 36. f6 g6 37. hxg6 fxg6 38. f7 { White mates.} Rb6 39. f8=Q Rxb3 40. Qd8+ Kc6 41. Rf6+ Kb7 42. Qd7+ Ka8 43. Rf8+ Rb8 44. Rxb8+ Kxb8 45. a5 {Accuracy: White = 53%, Black = 14%.} 1-0

A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 Nf6 3.d4 e6 4.e3 c5 5.Bb5+ Bd7 6.Bxd7+ Nbxd7)

[Event ""] [Site "?"] [Date "2011.07.06"] [Round "4"] [White "TK"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1475"] [BlackElo "1852"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "106"] [EventDate "2011.??.??"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 Nf6 3. d4 e6 4. e3 c5 5. Bb5+ Bd7 6. Bxd7+ Nbxd7 {-0.38/24 A03 Bird's Opening with 1...d5} (6... Qxd7 $17 {-0.92/22} 7. O-O Bd6) 7. O-O $15 Qb6 {-0.48/27} (7... Rc8 $17 {-0.95/24}) 8. Nc3 {-0.91/24} (8. b3 $15 {-0.48/27 deserves consideration.}) 8... Bd6 9. Ne5 {Black is better.} cxd4 (9... Rc8 {is more complex.} 10. a4 a6 11. a5 Qc7 12. Bd2 O-O) 10. exd4 {-1.25/26} ({White should play} 10. Nxd7 $15 {-0.55/26} Kxd7 11. exd4) 10... Nxe5 $17 11. fxe5 {-1.84/26} (11. Na4 $17 {-1.08/27} Nf3+ 12. Rxf3) 11... Bxe5 $19 12. Ne2 {-1.97/24} (12. Be3 $17 {-1.54/29} Bd6 13. Rb1 ) 12... Bd6 13. c3 {-2.14/23} (13. Rb1 $142 {-1.62/27}) 13... Be7 14. Nf4 O-O 15. Nh5 {-2.21/22} (15. a4 $17 {-1.41/28}) 15... Nxh5 16. Qxh5 g6 {-0.79/30} ( 16... a5 $19 {-1.61/24} 17. Rf2 Bd6) 17. Qf3 {Black should prevent Bh6.} f6 18. Rf2 Kg7 {-0.59/30} (18... Rf7 $17 {-1.12/24} 19. Be3 Qc6) 19. Qh3 {-1.13/24} ( 19. Re2 $15 {-0.59/30}) 19... Rh8 {0.21/28} (19... h5 $17 {-1.13/24}) 20. Bh6+ $11 Kf7 $1 21. Be3 {-0.75/26 [#]} (21. g4 $11 {0.21/28 keeps the balance.}) 21... Rag8 {0.00/31} (21... h6 $1 $17 {-0.75/26}) 22. Re1 {-0.58/26} (22. Bg5 $11 {0.00/31}) 22... Bd8 {0.34/30} ({Black should try} 22... h5 $15 {-0.58/26}) 23. Rfe2 {-0.72/22} (23. Bg5 $14 {0.34/30 stays ahead.}) 23... Re8 {0.00/30} ( 23... h5 $1 $17 {-0.72/22}) 24. Bc1 {-1.15/21} (24. Bh6 $11 {0.00/30}) 24... Qc6 {0.00/31} (24... h5 $17 {-1.15/21}) 25. b3 {-1.30/21} (25. Qh6 $11 {0.00/31 }) 25... Bb6 {-0.43/29} (25... h6 $17 {-1.30/21}) 26. Kh1 {-1.18/23} ({Better is} 26. Rf2 $15 {-0.43/29}) 26... Bc7 $17 27. Rf1 {-1.39/24 [#]} (27. Rf2 $142 {-0.81/25}) 27... e5 {0.00/29} (27... h6 $1 $17 {-1.39/24} 28. Ref2 (28. Bxh6 e5) 28... f5) 28. Bg5 f5 {0.73/28} (28... Re6 $11 {0.00/30}) 29. Rfe1 $2 { -2.14/24 [#]} (29. Ref2 $1 $16 {0.73/28 aiming for Rxf5+!} Kg8 30. Bh6) 29... e4 $2 {-0.47/26} (29... h6 $1 $19 {-2.14/24} 30. Be3 (30. Bxh6 e4) 30... e4) 30. Bd2 $2 {-2.46/22} (30. Bh6 $15 {-0.47/26}) 30... Bd6 $2 {0.00/28} (30... h5 $19 {-2.46/22} 31. Bg5 h4 $1) 31. b4 $2 {-3.14/24} (31. Rf2 $11 {0.00/28 and White has nothing to worry.}) 31... Qc7 32. a4 {-3.41/25} (32. Rf1 $142 { -1.98/28}) 32... Bf4 33. Be3 Bxe3 34. Rxe3 {-3.93/25} (34. Qxe3 $142 {-2.67/27} Kg7 35. Rf1) 34... Kg7 $19 35. g3 Rc8 36. Rc1 Qd7 37. b5 Rc4 38. Qh4 Rxa4 39. Qf4 Re8 40. h4 Re7 41. Qg5 Qc7 42. h5 {[#]} Re6 {-1.68/30} (42... Rxd4 $142 $1 {-4.03/27 Strongly threatening ...Rd3.} 43. Rf1 (43. cxd4 Qxc1+) 43... Rd2 44. Rxf5 Qd6 45. h6+ Kg8) 43. h6+ $2 {-4.28/22} (43. hxg6 {-1.68/30} hxg6 44. Re2) 43... Kf7 44. Rf1 {intending Rxf5+!} Rf6 45. Rb1 Ra2 46. Rc1 Qd6 47. c4 dxc4 48. Rxc4 f4 49. Rec3 fxg3 {-7.89/30} (49... Rf5 $142 {-17.62/25} 50. Rc7+ Ke6) 50. Rc7+ Ke6 51. Qg4+ Rf5 {( -> ...Rh2+)} ({Avoid the trap} 51... Kd5 $2 52. R7c5+ Qxc5 53. Rxc5+ Kxd4 54. Rc1 $18) 52. Qxe4+ Kf6 53. R3c6 $146 (53. R3c5 Rf1# {0-1 (53) Kinnunen,T-Vierjoki,T (1749) Naantali 2011}) 53... Rf1# { Accuracy: White = 16%, Black = 28%.} 0-1

A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 c5)

[Event "FICS rated blitz game"] [Site "FICS freechess.org"] [Date "2011.06.24"] [Round "?"] [White "trallala"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1419"] [BlackElo "1614"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "56"] [EventDate "2011.??.??"] [EventType "blitz"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 {A03 Bird's Opening with 1...d5} 3. e4 (3. d3 g6 4. e4 Bg7 5. Nc3 d4 6. Ne2 Nc6 7. g3 Nf6 8. Bg2 O-O 9. O-O b6 10. h3 h6 11. g4 e5 12. f5 g5 13. Ng3 Nh7 14. Nh5 Bd7 15. h4 f6 16. hxg5 fxg5 17. Qe1 Qe7 {Orev,P (2290)-Michenka,J (2265) Ostrava 1981 1-0 (50)}) 3... d4 4. Bb5+ $146 (4. Bc4 e6 5. O-O Nc6 6. d3 Be7 7. c3 Nf6 8. cxd4 Nxd4 9. Nc3 O-O 10. Ne5 Nd7 11. Be3 Nxe5 12. fxe5 Bg5 13. Bf2 Bf4 14. Ne2 Bxe5 15. Rb1 Qd6 16. Ng3 b5 17. Bb3 Ba6 18. Bxd4 Bxd4+ {Demanov,A (1996)-Parfenov,V (2137) Uljanovsk 2009 0-1 (35)}) 4... Bd7 5. a4 Qb6 {1.47/23} (5... e6 $11 { 0.25/26 keeps the balance.}) 6. O-O {0.95/25} (6. d3 $142 {1.47/23}) 6... Bxb5 {1.93/23} (6... e6 $16 {0.95/25}) 7. axb5 $18 Qxb5 8. Na3 {White is clearly better.} Qc6 {2.62/23} (8... Qa6 $142 {1.77/25} 9. d3 Nc6) 9. Ne5 Qxe4 $2 { 8.49/25 [#]} (9... Qc7 {2.26/24} 10. c3 Nc6) 10. Nb5 {White is clearly winning. } Nf6 11. Nc7+ Kd8 12. Nxa8 Qd5 13. Rxa7 g6 14. Nb6 Qe6 15. c4 Bg7 16. Nd5 Nxd5 17. cxd5 Qxd5 18. Qa4 f6 19. Nc4 Nd7 20. Qa5+ Ke8 21. Nb6 Nxb6 22. Qxb6 Kf7 23. Rxb7 Rc8 24. d3 Qf5 25. Qd6 Re8 26. Re1 Bf8 27. Bd2 Qxd3 28. Qe6+ Kg7 { Accuracy: White = 75%, Black = 30%.} 0-1 [Event "Grand Seven Fourteen"] [Site "http://www.redhotpawn.com"] [Date "2014.09.11"] [Round "1"] [White "pineapple42"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1232"] [BlackElo "1895"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "68"] [EventDate "2014.??.??"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 {A03 Bird's Opening with 1...d5} 3. d4 cxd4 4. Nxd4 Nc6 (4... Nf6 5. Nc3 Nc6 6. e3 g6 7. Be2 Bg7 8. O-O O-O 9. a3 Qb6 10. Nf3 Rd8 11. Bd3 d4 12. exd4 Nxd4 13. Kh1 Bg4 14. Qe1 Nxf3 15. Rxf3 Bxf3 16. gxf3 Qc6 17. Ne4 e6 18. Be3 Nd5 19. Rb1 {Gomez Fernandez,M (1559)-Sabater Comas,J (1918) Barcelona 2017 0-1}) 5. e3 Nf6 6. Bd3 $146 { -1.57/21} (6. Bb5 $15 {-0.56/25} Bd7 (6... Qc7 7. O-O e6 8. c3 Bd6 9. Nd2 O-O 10. Bd3 a6 11. N2f3 e5 12. fxe5 Nxe5 13. Nxe5 Bxe5 14. h3 Ne4 15. Bxe4 dxe4 16. Qh5 g6 17. Qh4 f5 18. Bd2 Kg7 19. Ne2 h6 20. Qe1 Be6 21. b3 {Priszczepa, A-Zurkowski,A (2068) Warsaw 2008 0-1 (33)}) 7. O-O (7. Nc3 e6 8. Bd2 a6 9. Bd3 Bd6 10. Qf3 Qc7 11. Nxc6 Bxc6 12. Qg3 O-O-O 13. Qxg7 Qe7 14. Ne2 h5 15. Qg3 Rdg8 16. Qf2 Ng4 17. Qf3 e5 18. fxe5 Nxe5 19. Qh3+ Bd7 20. Bf5 Ng4 21. Bxd7+ Kxd7 {Russa,R-Juhasz,K (1918) Budapest 2007 0-1 (64)})) (6. c3 Bd7 7. Bd3 e6 8. Nd2 Nxd4 9. exd4 Bd6 10. Nf3 O-O 11. Qc2 g6 12. Bd2 Rc8 13. h4 Nh5 14. Ne5 f5 15. O-O-O Bxe5 16. fxe5 Qa5 17. Kb1 Bb5 18. Bh6 Bxd3 19. Qxd3 Rf7 20. Rdg1 b5 { Koller,M (1740)-Kasik,M (1855) Klatovy 2013 1/2-1/2 (55)}) 6... Qb6 $2 {0.21/26 } (6... e5 $17 {-1.57/21} 7. fxe5 Nxe5) 7. c3 $2 {-1.71/20} (7. Nxc6 $1 $11 { 0.21/26 and White stays safe.} bxc6 8. O-O) 7... e6 {-0.28/26} (7... e5 $1 $19 {-1.71/20} 8. fxe5 Nxe5) 8. O-O {-0.81/23} (8. Nd2 $11 {-0.28/26 keeps the balance.}) 8... Bc5 {-0.24/25} (8... Bd6 $17 {-0.81/23}) 9. Qe2 {-1.63/21} (9. b4 $11 {-0.24/25 and White has nothing to worry.} Bd6 10. b5 Nxd4 11. cxd4) 9... O-O {-0.22/26} (9... e5 $1 $19 {-1.63/21} 10. fxe5 Nxe5) 10. Nd2 $11 Bd7 { -0.11/26} (10... a5 $15 {-0.58/23}) 11. N2b3 {-1.10/23} (11. N2f3 $11 {-0.11/26 }) 11... Bd6 $17 12. Nxc6 {-1.49/24} (12. Nb5 $142 {-0.77/26} Be7 13. N5d4) 12... bxc6 {-0.38/26} ({Don't play} 12... Bxc6 13. Nd4 $15) (12... Qxc6 $17 { -1.49/24} 13. Nd4 Qc5) 13. Nd4 {-1.79/24} ({White should play} 13. c4 $1 $15 { -0.38/26}) 13... c5 14. Nf3 Rab8 $2 {0.31/26} (14... c4 $19 {-1.85/23} 15. Bc2 Bxf4) 15. b3 {-1.15/25 [#]} (15. c4 $1 $14 {0.31/26 keeps the upper hand.}) 15... a5 $2 {0.71/25} (15... c4 $1 $17 {-1.15/25 and life is bright.} 16. bxc4 dxc4 17. Bxc4 Bxf4) 16. Bd2 $2 {-1.53/23 [#]} (16. c4 $1 $16 {0.71/25 keeps the pressure on.}) 16... Rfc8 $2 {0.26/24} (16... c4 $1 $17 {-1.53/23} 17. bxc4 dxc4 18. Bxc4 Bxf4) 17. Bc2 $2 {-1.35/24} (17. c4 $11 {0.26/24}) 17... c4 $36 { Black has good play.} 18. b4 $2 {-3.01/25} ({Better is} 18. Ne5 $15 {-0.55/26}) 18... axb4 $19 19. cxb4 {-4.29/22} (19. Nd4 {-2.71/27 is a better defense.}) 19... Bxb4 {-1.84/24} (19... c3 $142 {-4.29/22} 20. Be1 Bb5) 20. Rab1 {-3.05/27 } (20. Bxb4 $142 {-1.84/24} Qxb4 21. a4) 20... Qa5 {-1.79/30} (20... Qc5 $142 { -3.05/27 ...c3 is the strong threat.} 21. Bxb4 Rxb4) 21. Bxb4 {-2.66/24} (21. Rxb4 $142 {-1.79/30} Rxb4 22. Qe1) 21... Rxb4 22. Rxb4 Qxb4 23. Rb1 Qa3 24. Bd1 $2 {-5.84/24} (24. Nd4 {-3.47/32}) 24... Ne4 25. Rb2 Ba4 {-4.22/26} (25... Nc3 $142 {-10.08/25} 26. Qd2 Nxd1) 26. Bxa4 Qxa4 27. Nd4 g6 28. Qc2 Qa3 29. Kf1 $2 {-15.18/23} (29. Qc1 {-3.71/32}) 29... Qxe3 {aiming for ...c3.Black is clearly winning.} 30. Nf3 Qxf4 {Hoping for ...d4.} 31. Kg1 e5 {And now ...d4 would win. } 32. Rb5 Nf6 33. a4 e4 34. Nd4 Qe3+ {Accuracy: White = 8%, Black = 19%.} 0-1 [Event "ICC 10 0 u"] [Site "Internet Chess Club"] [Date "2015.06.27"] [Round "?"] [White "Kojjootti"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1549"] [BlackElo "1558"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "58"] [EventDate "2015.??.??"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 {A03 Bird's Opening with 1...d5} 3. d3 Nc6 4. c3 Nf6 5. Qc2 d4 {0.33/25} (5... Qc7 $17 {-0.85/23}) 6. e3 {-0.66/23} (6. Na3 $14 {0.33/25}) (6. e4 Bg4 7. Nbd2 e6 8. Be2 Be7 9. O-O O-O 10. h3 Bxf3 11. Nxf3 a5 12. c4 Rb8 13. a4 Nb4 14. Qd1 Nxe4 15. dxe4 d3 16. Be3 dxe2 17. Qxe2 Qd3 18. Qxd3 Nxd3 19. b3 Rfd8 20. Rab1 f6 {Vazquez Quiroga,M (2163)-Ballesteros Gonzalez,D (2227) Madrid 2012 1/2-1/2 (40)}) 6... dxe3 7. Bxe3 e6 {0.33/24} (7... Bf5 $11 {-0.27/22}) 8. Ne5 $146 {-0.31/24} (8. g3 $14 { 0.33/24}) (8. Be2 Be7 9. O-O O-O 10. Ng5 h6 11. Ne4 b6 12. Nxf6+ Bxf6 13. Nd2 Bb7 14. Ne4 Be7 15. Rad1 Rc8 16. f5 exf5 17. Rxf5 g6 18. Rf2 Kg7 19. Rdf1 Ne5 20. d4 cxd4 21. Rd1 dxe3 22. Rxf7+ Rxf7 {Brusselback,L (1539)-Martinez,H (1700) Tucson 2010 0-1}) 8... Qc7 9. d4 {-1.51/21} (9. Nxc6 $1 $11 {-0.15/28} Qxc6 10. Qe2) 9... cxd4 {-0.90/25} (9... Nd5 $142 {-1.51/21} 10. Bf2 Nxf4) 10. cxd4 $17 Bb4+ {-0.68/26} (10... Nd5 $17 {-1.10/23} 11. Bf2 Nxf4) 11. Nd2 Nd5 $36 { Black has good play.} 12. Qd3 $2 {-2.22/21 [#]} (12. Bf2 $15 {-0.70/24}) 12... f6 $2 {-0.51/24} (12... O-O $19 {-2.22/21 And now ...Rd8 would win.} 13. a3 Ba5 14. Nxc6 Qxc6) 13. Nxc6 $15 Qxc6 {-0.31/26} ({Better is} 13... bxc6 $17 { -1.17/19} 14. a3 Ba5) 14. Rc1 $2 {-11.88/21} (14. a3 $15 {-0.31/26} Ba5 15. Be2 ) 14... Qxc1+ $19 15. Kf2 O-O 16. g3 Qxb2 17. Be2 Nxe3 18. Kxe3 Bxd2+ 19. Qxd2 Qxd2+ 20. Kxd2 Bd7 21. h4 Bc6 22. Rh2 Rfd8 23. Ke3 Rd7 24. h5 Rad8 25. g4 Rxd4 26. g5 fxg5 27. fxg5 Re4+ {Black mates.} 28. Kf2 Rd2 29. Ke1 Rxa2 {Accuracy: White = 13%, Black = 23%.} 0-1 [Event "ICC 10 0 u"] [Site "Internet Chess Club"] [Date "2015.07.07"] [Round "?"] [White "Kojjootti"] [Black "Vierjoki, Timo"] [Result "1-0"] [ECO "A03"] [WhiteElo "1549"] [BlackElo "1558"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "87"] [EventDate "2015.??.??"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 {A03 Bird's Opening with 1...d5} 3. d3 d4 $146 (3... e6 4. c3 Nf6 5. g3 Nc6 6. Bg2 Be7 7. O-O Qc7 8. Qc2 b6 9. e4 Bb7 10. e5 Nd7 11. d4 Rc8 12. Na3 a6 13. Qd1 cxd4 14. cxd4 Bxa3 15. bxa3 Na5 16. f5 exf5 17. Nh4 g6 18. Bh6 {Lach,A (2154)-Jablonska,S (1968) Hucisko 2016 1-0 (31)}) (3... g6 4. e4 Bg7 5. Nc3 d4 6. Ne2 Nc6 7. g3 Nf6 8. Bg2 O-O 9. O-O b6 10. h3 h6 11. g4 e5 12. f5 g5 13. Ng3 Nh7 14. Nh5 Bd7 15. h4 f6 16. hxg5 fxg5 17. Qe1 Qe7 18. Qg3 {Orev,P (2290)-Michenka,J (2265) Ostrava 1981 1-0 (50)}) (3... Nc6 4. c3 Nf6 5. Qc2 d4 6. e4 dxe3 (6... Bg4 7. Nbd2 e6 8. Be2 Be7 9. O-O O-O 10. h3 Bxf3 11. Nxf3 a5 12. c4 Rb8 13. a4 Nb4 14. Qd1 Nxe4 15. dxe4 d3 16. Be3 dxe2 17. Qxe2 Qd3 18. Qxd3 Nxd3 19. b3 Rfd8 20. Rab1 f6 21. Rfd1 {Vazquez Quiroga,M (2163)-Ballesteros Gonzalez,D (2227) Madrid 2012 1/2-1/2 (40)}) 7. Bxe3 b6 8. Nbd2 Nd5 9. Bf2 Bb7 10. O-O-O e6 11. g3 Be7 12. Bg2 O-O 13. Ne4 h6 14. Ne5 Qc7 15. Nxc6 Bxc6 16. Rhg1 Rab8 17. Qe2 b5 18. Nxc5 {Walker,D (1963)-Brown,M (2194) Glasgow 2014 0-1 (31)}) 4. g3 Nc6 5. Bg2 Nf6 {0.66/23} (5... g6 $11 {-0.07/25}) 6. O-O Nd5 {1.19/23} (6... g6 $14 { 0.31/26}) 7. c3 {0.20/24} (7. Ne5 $16 {1.19/23}) 7... g6 {1.59/23} (7... e6 $11 {0.20/24 keeps the balance.}) 8. cxd4 {0.46/25} (8. Ne5 $16 {1.59/23}) 8... cxd4 $14 9. Re1 {-0.18/23} (9. Qb3 $14 {0.46/25}) 9... Bg7 $11 10. Na3 O-O { 0.00/27} (10... Nb6 $15 {-0.55/22}) 11. Nc4 {-0.59/24} (11. Qb3 $11 {0.00/27}) 11... b5 12. Nce5 $1 Bb7 13. e4 {-1.34/23} (13. Qb3 $11 {0.00/28}) 13... dxe3 $1 $17 14. Bxe3 {-1.61/28} (14. d4 $17 {-1.09/27 was necessary.}) 14... Nxe3 15. Rxe3 Qb6 16. Qd2 {With the idea Nd7.} Rad8 {-0.98/26} (16... Rfd8 $142 { -1.46/24} 17. Nxc6 Bxc6) 17. Kh1 {-1.60/29} (17. Nxc6 $142 {-0.98/26} Bxc6 18. Ne5 Bxg2 19. Kxg2) 17... Nd4 {-0.86/25} (17... Nxe5 $142 {-1.60/29} 18. Nxe5 f6 ) 18. Rae1 {-1.96/24} (18. Nxd4 $17 {-0.86/25} Rxd4 19. Rc1) 18... Qc7 $2 { -0.40/28} (18... Nf5 $19 {-1.96/24} 19. R3e2 e6) 19. Nxd4 {-1.01/25} (19. Rc1 $15 {-0.40/28} Qb8 20. Nxd4 Rxd4 21. Bxb7 Bxe5 22. Be4 (22. fxe5 Qxb7+ 23. Kg1 Qb6 $15)) 19... Rxd4 20. Nf3 {-1.47/24} (20. Rc1 $142 {-0.91/29} Bxg2+ 21. Kxg2 Qb7+ 22. Kg1) 20... Ra4 $2 {0.45/27} (20... Bxf3 $17 {-1.47/24} 21. Bxf3 e6) 21. Rxe7 $14 Qb6 {0.54/25} (21... Qc8 $11 {0.09/29}) 22. a3 {-0.10/27} (22. b3 $14 {0.54/25} Ra6 23. Ne5 Bxg2+ 24. Qxg2 Bxe5 25. R7xe5 (25. fxe5 Qc5 $11) (25. R1xe5 Qd4 $11)) 22... b4 23. Qc2 Ra5 24. Ne5 Bxg2+ 25. Qxg2 {[#] Strongly threatening Nc4.} bxa3 26. Nc4 Qb5 {0.93/30} (26... Qc5 $1 $11 {0.00/30} 27. bxa3 (27. Nxa5 axb2 28. Nc6 Qc1 $11) 27... Rb5) 27. Nxa5 $4 {-2.45/28} (27. bxa3 $16 {0.93/30 stays on course. Threatens to win with Rb7.} Bc3 28. Rc1 (28. Nxa5 Bxe1 29. Nc4 Bc3 $14)) 27... Qxa5 $4 {1.99/26} (27... axb2 $19 {-2.45/28 and all is fine.} 28. h4 Qxa5) 28. bxa3 $18 Qxa3 $2 {3.15/24} (28... Bf6 $16 { 1.53/27}) 29. Re8 {1.41/30} (29. Qd5 $18 {3.15/24}) 29... Qxd3 30. Rxf8+ { 1.04/36} (30. Qc6 $142 {1.59/28}) 30... Bxf8 $16 {Endgame KQR-KQB} 31. Qa8 Qa3 {1.51/32} (31... a6 $142 {0.93/32}) 32. Re8 {0.76/30} ({Better is} 32. Qd5 { 1.51/32}) 32... a5 {1.54/28} ({Black should play} 32... Qc1+ {0.76/30} 33. Kg2 Qc2+ 34. Kh3 Qf5+ 35. g4 Qc5) 33. Qc6 {0.75/32} ({White should try} 33. Qd5 { 1.54/28}) 33... Kg7 {1.31/28} (33... a4 $142 {0.75/32}) 34. Kg2 $36 {White is on the roll.} Bb4 {1.96/26} (34... Qd3 $16 {1.26/31}) 35. Ra8 $2 {0.00/37} (35. Qd5 $18 {1.96/26}) 35... Qb2+ 36. Kh3 Qf2 $2 {1.54/26} (36... Qe2 $11 {0.00/32} ) 37. Qe8 $2 {0.00/41} (37. Qb5 $16 {1.54/26}) 37... Qf1+ $11 38. Kh4 {Qe5+ would kill now.} Qd1 $2 {3.36/35} (38... Qh1 $11 {0.00/41 and Black has nothing to worry.} 39. Kh3 Qf1+ 40. Kh4 Qf2) 39. Qe5+ $18 Kh6 40. Qg5+ Kg7 41. Qe5+ Kh6 {[#] ( -> ...Be7+!)} 42. Ra7 $2 {1.29/34} ({Don't do} 42. Qg5+ $6 Kg7 $18) (42. Rg8 $1 $18 {3.25/31} Qh5+ 43. Qxh5+ gxh5 44. Ra8) 42... Qb3 $2 { #25/38} (42... Bd6 $16 {1.29/34} 43. Rd7 (43. Qxa5 {leads to mate.} f5 44. Kh3 Qf1+ 45. Kh4 Bxf4 46. Rxh7+ Kxh7 47. Qd8 Qe2 48. Kh3 g5 49. Qd7+ Kg6 50. Qe8+ Qxe8 51. gxf4 gxf4 52. Kg2 Qe2+ 53. Kg1 f3 54. h4 Qg2#) (43. Qg5+ Kg7 $11) 43... Bxe5 44. Rxd1 Bg7) 43. Qf6 $2 {2.20/36} (43. g4 {#25/38 mates} Be1+ 44. Qxe1 Qd5 45. g5+ Kg7 46. Qa1+ Kg8 47. Rxa5 Qd8 48. Ra8) 43... a4 $2 {#6/39} ( 43... Qd5 $18 {2.20/36} 44. Qe5 Qa2) 44. Rxf7 {Accuracy: White = 16%, Black = 12%.} 1-0 [Event "Live Chess"] [Site "Chess.com"] [Date "2016.07.22"] [Round "?"] [White "Kojjootti"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1672"] [BlackElo "1851"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "84"] [EventDate "2016.??.??"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 {A03 Bird's Opening with 1...d5} 3. d3 Nc6 4. e3 $146 (4. g3 Bg4 (4... Nh6 5. Bg2 Nf5 6. Nc3 h5 7. e4 dxe4 8. Nxe4 h4 9. c3 Qb6 10. Qe2 hxg3 11. hxg3 Rxh1+ 12. Bxh1 e6 13. g4 Nd6 14. Be3 Nxe4 15. dxe4 Bd7 16. O-O-O O-O-O 17. e5 Ne7 18. Ng5 Be8 19. Rxd8+ { Jakubiec,A (2565)-Urban,K (2504) Warsaw 2004 1-0 (62)}) 5. Bg2 f6 6. h3 Bxf3 7. Bxf3 e5 8. e4 d4 9. a4 exf4 10. gxf4 f5 11. Qe2 Qh4+ 12. Qf2 Be7 13. Qxh4 Bxh4+ 14. Kd1 fxe4 15. dxe4 Nge7 16. Rg1 g6 17. Bg4 Rd8 18. Na3 Nb4 {Young, S-Phillips,T Stillwater 2009 0-1 (61)}) (4. c3 Nf6 5. Qc2 d4 6. e4 dxe3 (6... Bg4 7. Nbd2 e6 8. Be2 Be7 9. O-O O-O 10. h3 Bxf3 11. Nxf3 a5 12. c4 Rb8 13. a4 Nb4 14. Qd1 Nxe4 15. dxe4 d3 16. Be3 dxe2 17. Qxe2 Qd3 18. Qxd3 Nxd3 19. b3 Rfd8 20. Rab1 f6 21. Rfd1 {Vazquez Quiroga,M (2163)-Ballesteros Gonzalez,D (2227) Madrid 2012 1/2-1/2 (40)}) 7. Bxe3 b6 8. Nbd2 Nd5 9. Bf2 Bb7 10. O-O-O e6 11. g3 Be7 12. Bg2 O-O 13. Ne4 h6 14. Ne5 Qc7 15. Nxc6 Bxc6 16. Rhg1 Rab8 17. Qe2 b5 18. Nxc5 Nxc3 {Walker,D (1963)-Brown,M (2194) Glasgow 2014 0-1 (31)} ) 4... g6 5. g3 Bg7 {-0.16/24} (5... Nh6 $15 {-0.64/24 deserves consideration.} ) 6. Bg2 $11 Qb6 {0.51/24} (6... Nh6 $17 {-0.79/22}) 7. c3 {-0.53/23} ({ Better is} 7. Nc3 $14 {0.51/24}) 7... Nf6 8. h3 {-1.14/22} (8. O-O $11 { -0.24/23}) 8... d4 {-0.05/27} (8... O-O $17 {-1.14/22} 9. O-O Rd8) 9. exd4 { -0.67/25} (9. cxd4 $11 {-0.05/27} cxd4 10. e4) 9... cxd4 $15 {...Nh5 is the strong threat.} 10. Nbd2 {-1.79/22} (10. c4 $11 {-0.29/25}) 10... O-O {-0.43/25 } (10... Nh5 $19 {-1.79/22} 11. Nc4 Qc7) 11. Nc4 Qc5 {-0.42/27} (11... Qa6 $17 {-0.92/24 And now ...Nh5 would win.} 12. cxd4 Nd5) 12. b4 {-1.33/27} (12. Nxd4 $15 {-0.42/27} Nxd4 13. cxd4 Qxd4 14. Be3) 12... Qb5 $2 {1.03/23} (12... Qd5 $17 {-1.33/27 and life is bright.} 13. cxd4 Nxd4) 13. a4 $1 $36 {Black is under strong pressure.} Qd5 14. b5 Nd8 15. cxd4 {0.72/26} (15. O-O $142 { 1.30/23}) 15... Ne6 16. Bb2 {-0.10/25} (16. O-O $16 {0.93/22}) 16... Nh5 $1 $11 17. Kf2 $1 Nxd4 18. Nfe5 Qd8 19. Re1 $1 a6 20. b6 {-0.40/28} (20. Re4 $11 { 0.22/25} Ne6 21. Na3) 20... Ne6 $2 {1.34/27} (20... f6 $15 {-0.40/28 keeps the upper hand.} 21. Nf3 Nf5) 21. Kg1 $2 {-2.28/23} (21. d4 $16 {1.34/27 stays on course.}) 21... Nxg3 $19 22. d4 $2 {-4.33/25} (22. Kh2 {-2.39/28 is a better defense.} Nh5 23. f5) 22... Nxf4 23. Qf3 {-4.93/26} (23. d5 $142 {-3.52/25}) 23... Nxg2 24. Kxg2 Nf5 {aiming for ...Nh4+.} 25. d5 Nd6 $2 {-3.04/28} (25... Nh4+ {-13.71/21} 26. Kg3 Nxf3 27. Nxf3 Bxb2 28. Nxb2 Qd6+ 29. Kg2 Qf4) 26. Rab1 $2 {-4.87/25} (26. a5 {-3.04/28}) 26... Nxc4 {-2.76/27} (26... Bf5 $142 { -4.87/25} 27. Rbc1 Rc8) 27. Nxc4 Bxb2 28. Rxb2 Bd7 29. a5 {-3.99/21} (29. Na5 $142 {-2.81/28} Bc8 30. Nc6 bxc6 31. dxc6) 29... Bb5 30. Ne3 Qd6 31. Ng4 { -4.81/26} (31. Qg3 $142 {-3.30/26} Rac8 32. Qxd6 exd6 33. Kf2) 31... Bc4 32. Rd2 e6 $4 {4.55/27 [#]} (32... Rac8 $19 {-4.07/27} 33. Nh6+ Kg7) 33. Nf6+ $1 $18 Kg7 {[#] Threatens to win with ...Rac8.} 34. Ne4 $4 {-3.40/26} (34. Qc3 $1 $18 {5.36/28 was the only winning move. White threatens Ne8+ and mate.} e5 35. Ne4 Bxd5 36. Kg1) 34... Qe5 $19 35. d6 {-4.45/25} (35. dxe6 {-3.10/30 keeps fighting.} Bxe6 36. Qc3 Qxc3 37. Nxc3) 35... Bd5 {Strongly threatening ...Bxe4. } 36. Rde2 {-8.91/23} (36. Kg1 $142 {-4.45/29} Rac8 37. Rf2) 36... Bxe4 { -3.66/27} (36... f5 $142 {-8.91/23} 37. Qg3 Qd4) 37. Rxe4 Qxd6 38. Rf1 Qd2+ 39. Rf2 {-5.58/23} (39. Re2 $142 {-3.80/27} Qg5+ 40. Kh2) 39... Qxa5 {Black is clearly winning.} 40. Qf6+ Kg8 41. Rh4 Qxb6 42. Rxh7 Kxh7 {Accuracy: White = 18%, Black = 36%.} 0-1 [Event "Live Chess"] [Site "Chess.com"] [Date "2018.08.19"] [Round "?"] [White "Kojjootti"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1643"] [BlackElo "1657"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "128"] [EventDate "2018.??.??"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 {A03 Bird's Opening with 1...d5} 3. c3 Nc6 4. d4 (4. g3 Nf6 5. Bg2 Bf5 6. e3 e6 7. O-O Bd3 8. Re1 Bd6 9. Qb3 Qc7 10. Na3 a6 11. c4 Nb4 12. Qa4+ Ke7 13. cxd5 Nfxd5 14. Ne5 b5 15. Qd1 Bxe5 16. Bxd5 exd5 17. fxe5 Qxe5 18. Qg4 Rhe8 {Salazar Martin,J (1563) -Perera Ramirez,M (1579) Las Palmas 2016 0-1}) 4... e6 $146 (4... cxd4 5. cxd4 g6 6. Nc3 Bg7 7. e3 a6 8. Be2 Nf6 9. O-O O-O 10. a3 Ne8 11. b4 e6 12. Bd2 Nd6 13. Qb3 f6 14. a4 g5 15. fxg5 fxg5 16. a5 Ne4 17. Nxe4 dxe4 18. Ne5 Nxe5 19. Rxf8+ {Palmi,H-Horvath,L (2264) Regen 2004 0-1 (33)}) 5. Nbd2 Nf6 {-0.18/24} ( 5... Nh6 $15 {-0.70/24}) 6. Qc2 $2 {-1.81/23} (6. e3 $11 {-0.18/24}) 6... Bd6 { -0.41/26} (6... cxd4 $19 {-1.81/23 White must now prevent ...Bd7.} 7. Nxd4 Nxd4 8. cxd4 Bd7) 7. Ne5 {-1.62/20} (7. e4 $1 $15 {-0.41/26} Bxf4 8. e5 Bxd2+ 9. Bxd2) 7... Qc7 {-0.34/24} (7... cxd4 $19 {-1.62/20} 8. Nxc6 bxc6 9. cxd4 O-O) 8. Nxc6 {-0.77/22} (8. e3 $15 {-0.34/24 is more appropriate.}) 8... Qxc6 9. Nf3 {-1.01/24} (9. e3 $15 {-0.51/27}) 9... O-O $17 10. e3 b6 {-0.40/26} (10... b5 $17 {-1.05/23}) 11. Be2 {-1.12/24} (11. a4 $15 {-0.40/26}) 11... Bb7 {-0.36/25} ({Black should play} 11... a5 $17 {-1.12/24}) 12. O-O {-0.98/22} (12. b3 $15 { -0.36/25}) 12... Rac8 {-0.27/25} (12... Ne4 $17 {-0.98/22}) 13. Ne5 {-1.01/23} (13. b3 $11 {-0.27/25}) 13... Qc7 $36 {Black is pushing.} 14. Rf3 {-1.32/23} ( 14. Bd2 $15 {-0.68/25}) 14... Ne4 {-0.79/25} (14... g6 $142 {-1.32/23} 15. g4 Bxe5 16. fxe5 Nxg4) 15. Rh3 {-1.83/20} (15. Bd3 $17 {-0.79/25}) 15... f6 { -1.05/24} (15... g5 $19 {-1.83/20} 16. Bd3 cxd4 17. exd4 f6) 16. Nf3 {-2.23/23} (16. Ng4 $17 {-1.05/24}) 16... cxd4 {-0.91/27} (16... g5 $1 $19 {-2.23/23} 17. dxc5 Bxc5) 17. exd4 {-1.50/24} ({Better is} 17. Nxd4 {-0.91/27} Qf7 18. Rf3) 17... Bxf4 18. Bxf4 Qxf4 19. Qd3 $2 {-7.14/24 [#]} (19. Rf1 $17 {-1.22/29}) 19... e5 $2 {-0.46/28} (19... Ba6 $1 $19 {-7.14/24} 20. g3 (20. Qxa6 Qe3+) 20... Bxd3 21. gxf4 Bxe2) 20. Rf1 {-1.36/27} (20. Rh4 $1 $15 {-0.46/28} Qf5 21. Rf1) 20... exd4 $1 21. Nxd4 Qd6 22. Nf5 {-1.60/24} (22. Re3 $142 {-1.11/28}) 22... Qc5+ {-1.09/28} (22... Qc7 $142 {-1.60/24} 23. Nd4 Rce8) 23. Nd4 Rfe8 { -1.23/27} (23... Rce8 $19 {-1.75/22} 24. Qc2 f5) 24. Bg4 Rc7 25. Kh1 {-1.91/23} (25. Bd1 $17 {-1.12/26 might work better.}) 25... Rce7 {-1.40/29} (25... Bc8 $19 {-1.91/23} 26. Bxc8 Rcxc8) 26. Bf5 g6 27. Bg4 $2 {-3.32/26} (27. Bxe4 { -1.64/28 was worth a try.} dxe4 28. Qe3) 27... f5 {-1.63/25} (27... Qa5 $142 { -3.32/26 aiming for ...Ba6.} 28. Qc2 Qxa2) 28. Bd1 {-2.51/24} (28. Be2 { -1.63/25 keeps fighting.}) 28... a6 {-1.12/27} (28... Qc4 $19 {-2.51/24 has better winning chances.} 29. Qxc4 dxc4) 29. Rh6 $2 {-4.76/27 [#]} (29. g4 $17 { -1.12/27 is a better chance.}) 29... b5 {-2.59/29} (29... Nf2+ $142 $1 { -4.76/27} 30. Rxf2 Re3) 30. Qh3 $2 {-12.28/26 [#]} (30. Rh3 {-2.59/29}) 30... b4 {-4.63/29} (30... Nf2+ $142 $1 {-12.28/26} 31. Kg1 (31. Rxf2 Re1+) 31... Nxh3+ 32. Rxh3 Re1) 31. g4 {-8.91/20} (31. Qe3 $142 {-4.63/29}) 31... fxg4 $2 { -2.80/27} (31... bxc3 {-8.91/20} 32. bxc3 Nxc3) 32. Bxg4 $2 {-4.77/26} (32. Qxg4 {-2.80/27 is the only way for White.} Bc6 33. Qf4) 32... bxc3 $19 33. bxc3 Qxc3 {-2.83/28} (33... Nxc3 $142 {-4.73/27} 34. Qd3 Ne4) 34. Qxc3 Nxc3 35. Rh3 Ne4 ({Don't take} 35... Nxa2 36. Rb3 $19) 36. Ra3 Rf8 37. Rxf8+ Kxf8 38. Rf3+ Ke8 39. Ne6 Rf7 40. Rxf7 Kxf7 {Endgame KBN-KBN} 41. Nd8+ Ke7 42. Nxb7 Nf2+ 43. Kg2 Nxg4 {KN-KN} 44. h3 Ne5 45. Nc5 a5 46. a4 {-7.77/29} (46. Nb3 $142 { -4.79/30} Nc6 47. Kf3) 46... Nc4 47. Kf3 Kd6 48. Nb3 Ke5 49. Kg4 h6 50. Kf3 d4 51. Ke2 g5 52. Kd3 Nb2+ 53. Kc2 Nxa4 54. Kd3 Nb2+ 55. Kc2 Nc4 56. Kd3 a4 57. Nxd4 Nd6 58. Nc2 Kf4 59. h4 g4 {-30.28/28} (59... gxh4 $142 {-77.77/25} 60. Ne3 h3) 60. Ke2 Ne4 61. Kf1 Kg3 62. h5 Kh4 63. Kg2 Kxh5 64. Na3 Kh4 {Accuracy: White = 12%, Black = 37%.} 0-1 [Event "Monthly Rapid Arena"] [Site "https://lichess.org/4M40ZY0I"] [Date "2019.11.28"] [Round "?"] [White "Mahmoud_elmorsy"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1840"] [BlackElo "2048"] [Annotator "Tactical Analysis 2.10 (5s), TV"] [PlyCount "54"] [EventDate "2019.??.??"] [EventType "rapid"] [TimeControl "600"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 {A03 Bird's Opening with 1...d5} 3. d3 Nc6 4. e3 $146 (4. g3 Bg4 (4... Nh6 5. Bg2 Nf5 6. Nc3 h5 7. e4 dxe4 8. Nxe4 h4 9. c3 Qb6 10. Qe2 hxg3 11. hxg3 Rxh1+ 12. Bxh1 e6 13. g4 Nd6 14. Be3 Nxe4 15. dxe4 Bd7 16. O-O-O O-O-O 17. e5 Ne7 18. Ng5 Be8 19. Rxd8+ { Jakubiec,A (2565)-Urban,K (2504) Warsaw 2004 1-0 (62)}) 5. Bg2 f6 6. h3 Bxf3 7. Bxf3 e5 8. e4 d4 9. a4 exf4 10. gxf4 f5 11. Qe2 Qh4+ 12. Qf2 Be7 13. Qxh4 Bxh4+ 14. Kd1 fxe4 15. dxe4 Nge7 16. Rg1 g6 17. Bg4 Rd8 18. Na3 Nb4 {Young, S-Phillips,T Stillwater 2009 0-1 (61)}) (4. c3 Nf6 5. Qc2 d4 6. e4 dxe3 (6... Bg4 7. Nbd2 e6 8. Be2 Be7 9. O-O O-O 10. h3 Bxf3 11. Nxf3 a5 12. c4 Rb8 13. a4 Nb4 14. Qd1 Nxe4 15. dxe4 d3 16. Be3 dxe2 17. Qxe2 Qd3 18. Qxd3 Nxd3 19. b3 Rfd8 20. Rab1 f6 21. Rfd1 {Vazquez Quiroga,M (2163)-Ballesteros Gonzalez,D (2227) Madrid 2012 1/2-1/2 (40)}) 7. Bxe3 b6 8. Nbd2 Nd5 9. Bf2 Bb7 10. O-O-O e6 11. g3 Be7 12. Bg2 O-O 13. Ne4 h6 14. Ne5 Qc7 15. Nxc6 Bxc6 16. Rhg1 Rab8 17. Qe2 b5 18. Nxc5 Nxc3 {Walker,D (1963)-Brown,M (2194) Glasgow 2014 0-1 (31)} ) 4... Nf6 5. Bd2 g6 {-0.35/23} (5... e6 $17 {-1.01/19}) 6. Be2 {-0.89/19} (6. Na3 $15 {-0.35/23}) 6... Bg7 $17 7. Bc3 {-1.84/19} (7. O-O $15 {-0.43/20}) 7... O-O {-1.01/23} ({Black should play} 7... d4 $19 {-1.84/19 aiming for ...Qb6.} 8. exd4 cxd4) 8. O-O {-1.59/21} (8. Na3 $142 {-1.01/23}) 8... b5 {-0.23/21} ( 8... d4 $17 {-1.59/21} 9. exd4 cxd4) 9. d4 $2 {-2.40/23 [#]} (9. Ne5 $1 $11 { -0.23/21} Bb7 10. Nxc6 Bxc6 11. Bf3) 9... b4 {-1.34/24} (9... Ng4 $19 {-2.40/23 } 10. Bxb5 Nxe3) 10. Be1 {-1.81/19} (10. Bd2 $17 {-1.34/24 was worth a try.}) 10... Ng4 $36 {Keeping White busy.} 11. Ne5 $2 {-5.43/22} (11. Qd2 {-1.62/26 is more resistant.}) 11... Ncxe5 {Black is clearly winning.} 12. fxe5 Nxe3 13. Qd2 Nxf1 14. Bxf1 cxd4 15. Qxd4 a5 16. Nd2 Bf5 17. c3 bxc3 18. Qxc3 Qd7 19. Nf3 Rfc8 20. Qb3 Be4 21. Bg3 {-6.91/20} (21. Qe3 $142 {-4.47/24}) 21... Rab8 $19 22. Qa3 e6 23. Ng5 Bf5 24. b3 Qc7 25. Kh1 Bxe5 26. Bxe5 Qxe5 27. Qe7 Rc7 { Normal. Accuracy: White = 19%, Black = 45%.} 0-1

A03 Bird's Opening with 1...d5 (1.b3 d5 2.Bb2 c5 3.f4 Nc6 4.Nf3 Nf6 5.e3 Bg4 6.Be2 e6 7.O-O)

[Event "FICS rated blitz game"] [Site "FICS freechess.org"] [Date "2011.05.22"] [Round "?"] [White "trallala"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1437"] [BlackElo "1588"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "54"] [EventDate "2011.??.??"] [EventType "blitz"] 1. b3 d5 {A01 Nimzo-Larsen Attack: Classical Variation} 2. Bb2 c5 3. f4 Nc6 4. Nf3 Nf6 5. e3 Bg4 6. Be2 e6 7. O-O {A03 Bird's Opening with 1...d5} Bd6 { 0.42/24} (7... Be7 $11 {0.00/27}) 8. h3 {-0.12/25} (8. Ne5 $14 {0.42/24} Bxe5 9. fxe5 Bxe2 10. Qxe2 Nd7 11. d4 O-O 12. Nd2 Qb6 13. Nf3 a5 14. a4 Qa6 15. Qxa6 Rxa6 16. dxc5 Nxc5 17. Ba3 b6 18. Bxc5 bxc5 19. Rad1 Rb6 20. h4 Rb4 21. Rd3 Ne7 22. h5 h6 23. Rc3 Rc8 24. Nd2 Nf5 25. Rf4 {Bargeri,L (2092)-Lapiccirella,D (2246) Biella 2015 0-1 (48)}) 8... Bh5 $146 {0.33/26} (8... Bf5 $11 {-0.12/25}) (8... Bxf3 9. Bxf3 Qc7 10. c4 dxc4 11. bxc4 e5 12. Nc3 a6 13. Nd5 Nxd5 14. cxd5 Ne7 15. fxe5 Bxe5 16. Bxe5 Qxe5 17. d6 Nc6 18. d7+ Kxd7 19. Bxc6+ Kxc6 20. Rxf7 Rhd8 21. Rb1 b5 22. a4 Rd5 23. Qb3 {Godois,J (2240)-Rial,D Guaramirim 1999 1-0 (36)}) 9. Nc3 {-0.44/25} (9. Ne5 $14 {0.33/26} Bxe5 10. fxe5 Bxe2 11. Qxe2) 9... a6 {0.60/25} (9... O-O $15 {-0.44/25}) 10. d3 $2 {-1.00/25} (10. Ne5 $1 $14 {0.60/25 stays ahead.} Bxe2 11. Nxe2) 10... O-O $2 {0.51/25} (10... Bg6 $17 {-1.00/25}) 11. Qd2 $2 {-1.22/22} (11. Ne5 $1 $14 {0.51/25 keeps the upper hand.} Bxe5 12. fxe5 Bxe2 13. Nxe2) 11... Qc7 {-0.45/26} (11... Bg6 $17 { -1.22/22} 12. Nh4 d4) 12. Rae1 {-1.48/24} (12. g3 $15 {-0.45/26}) 12... d4 $17 13. Ne4 Nxe4 {-0.29/26} (13... Nd5 $1 $19 {-1.74/25} 14. Nxd6 dxe3) 14. dxe4 $11 {Threatens to win with g4.} dxe3 15. Qc3 f6 {Threatening ...Bxf3.} 16. g4 { -1.50/23} (16. e5 $11 {-0.09/28} fxe5 17. fxe5) 16... Bf7 {-0.62/28} (16... Be8 $17 {-1.50/23} 17. e5 fxe5 18. fxe5 Be7 19. Qxe3 Nb4) 17. e5 $15 fxe5 18. fxe5 Be7 19. Qxe3 {-1.65/21 [#]} (19. a3 $17 {-0.82/27 was necessary.}) 19... Bg6 $2 {-0.09/28} (19... Nb4 $1 $19 {-1.65/21} 20. Rd1 Nxc2) 20. Bd3 {-1.39/25} (20. c3 $11 {-0.09/28 remains equal.}) 20... Bxd3 $17 21. Qxd3 {[#]} Rad8 {-0.14/28} (21... Nb4 $1 $17 {-1.29/22} 22. Qe2 Nxa2) 22. Qe4 {-0.60/25} (22. Qc4 $11 { -0.14/28 feels stronger.}) 22... Rd5 {0.09/30} ({Black should play} 22... Rf7 $15 {-0.60/25}) 23. h4 {-0.56/24} (23. Re2 $11 {0.09/30}) 23... Qd8 {0.00/26} ( {Better is} 23... Rf7 $15 {-0.56/24}) 24. g5 {-0.76/24} (24. h5 $1 $11 { 0.00/26 keeps the balance.}) 24... Rf5 25. Nd2 $2 {-6.78/24} (25. Re2 $15 { -0.43/26}) 25... Qf8 $2 {-0.36/30} (25... Rxd2 $19 {-6.78/24} 26. Bc3 Rxf1+ 27. Rxf1 Qd5 28. Qxd5 Rxd5) 26. Rxf5 Qxf5 27. Qxf5 exf5 {Accuracy: White = 10%, Black = 17%.} 0-1

A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 c5 3.b3)

[Event "rated blitz match"] [Site "Free Internet Chess Server"] [Date "2010.10.14"] [Round "?"] [White "trallala"] [Black "Vierjoki, Timo"] [Result "1-0"] [ECO "A03"] [WhiteElo "1532"] [BlackElo "1393"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "83"] [EventDate "2010.??.??"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 3. b3 {A03 Bird's Opening with 1...d5} Nc6 4. Bb2 Bg4 5. g3 $146 (5. e3 e6 (5... a6 6. Be2 e6 7. O-O Bxf3 8. Bxf3 Nf6 9. Nc3 Be7 10. Ne2 Rc8 11. Kh1 O-O 12. g4 d4 13. exd4 cxd4 14. g5 Nd5 15. Be4 Bc5 16. Ng3 g6 17. Qg4 Nce7 18. Rf3 Nf5 19. Rg1 Re8 20. h4 { Abou el Zein,E (2333)-Tissir,M (2368) Cairo 2002 0-1 (53)}) (5... d4 6. Bb5 dxe3 7. Bxc6+ bxc6 8. O-O Bxf3 9. Qxf3 Qd5 10. dxe3 Qxf3 11. Rxf3 Rd8 12. Nc3 Rd2 13. Rc1 g6 14. Ne4 Rd5 15. Bxh8 f6 16. c4 Rh5 17. Rb1 Kf7 18. h3 e6 19. g4 Rh4 20. Kg2 {Schlesier,T (1071)-Zesewitz,M (1314) Berlin 2006 1-0 (33)}) 6. Bb5 (6. h3 Bxf3 (6... Bh5 7. g4 Bg6 8. Bg2 f6 9. d3 Qb6 10. Qe2 c4 11. dxc4 dxc4 12. Nd4 cxb3 13. axb3 Nxd4 14. Bxd4 Bc5 15. f5 Bf7 16. Qc4 Bxd4 17. Qxd4 Qxd4 18. exd4 Rd8 19. fxe6 Bxe6 20. Bxb7 Rxd4 21. Rh2 {Lange,N (2033)-Falk,T (1968) Verdun 2007 1-0 (32)}) 7. Qxf3 Nf6 8. Bb5 Rc8 9. O-O a6 10. Bxc6+ Rxc6 11. Nc3 h5 12. d3 Be7 13. e4 d4 14. Ne2 h4 15. f5 e5 16. c3 Nd7 17. cxd4 cxd4 18. Rfc1 Bg5 19. Rxc6 bxc6 20. Bc1 Qf6 {Skrzyczek,T (1938)-Piesik,P (2337) Katowice 2017 0-1 (33)}) 6... Nge7 7. O-O a6 8. Be2 Nf5 9. Ne5 Bxe2 10. Qxe2 Nb4 11. d3 d4 12. Na3 Nxe3 13. Rf3 Nbd5 14. f5 Qf6 15. Nec4 e5 16. Re1 b5 17. Nxe3 Nxe3 18. Bc1 c4 19. Bxe3 dxe3 {Benke,M (1943)-Dijoux,J (1764) St Denis 2008 1/2-1/2} ) 5... d4 $2 {0.43/25} ({Black should play} 5... Bxf3 $17 {-1.30/22} 6. exf3 Nf6) 6. Bg2 $14 Nf6 {0.73/24} (6... Nh6 $15 {-0.31/25 keeps the upper hand.}) 7. d3 $2 {-1.30/24} (7. c3 $16 {0.73/24}) 7... Nd5 $17 {[#] White must now prevent ...Ne3.} 8. Bc1 {Black is better.} g6 9. O-O {-1.47/23} (9. Na3 $142 { -0.95/28}) 9... Bg7 10. Bd2 {-1.64/24} (10. a4 $17 {-1.04/26 keeps fighting.}) 10... Ne3 {-0.65/28} (10... O-O $19 {-1.64/24} 11. Na3 Bxf3 12. Bxf3 e6) 11. Bxe3 $1 $15 dxe3 12. c3 Qa5 {-0.10/27} (12... O-O $17 {-1.05/24}) 13. Qc1 $11 O-O 14. Qxe3 {-1.36/27 [#]} (14. h3 $1 $11 {-0.05/27} Be6 15. Ng5) 14... Bxc3 $2 {1.06/28} (14... Nd4 $1 $17 {-1.36/27 Hoping for ...Nc2.} 15. Ne5 (15. cxd4 $2 Bxf3 16. Qxf3 Bxd4+ 17. e3 Bxa1 $19) 15... Bxe5 16. Qxe5 Nc2) 15. Nxc3 $16 Qxc3 16. Rac1 Qd4 $2 {10.43/22} (16... Qb2 $16 {0.76/27}) 17. Nxd4 $18 cxd4 18. Qe4 Rad8 19. f5 gxf5 20. Rxf5 Bxf5 21. Qxf5 {White wants to mate with Be4.} Rd6 22. Bxc6 bxc6 23. Qg5+ Rg6 24. Qxe7 Re6 25. Qd7 Rxe2 26. Rxc6 {10.87/32} (26. Qg4+ $142 {#11/29} Kh8 27. Qxe2 Ra8 28. Qe5+ Kg8 29. Re1 Rf8 30. Qf6 c5 31. Re4 Rc8 32. Rg4+ Kf8 33. Qd6+ Ke8 34. Rg8#) 26... Rxa2 27. Qg4+ Kh8 28. Qxd4+ Kg8 29. Rc5 {10.53/27} (29. Qe5 $142 {#12/42} Ra8 30. Qg5+ Kh8 31. Qf6+ Kg8 32. Rc5 Re2 33. Rg5+ Kf8 34. Rf5) 29... Re8 30. Rg5+ {White mates.} Kf8 31. Qd6+ Re7 32. Re5 Ra1+ 33. Kg2 Ra2+ 34. Kh3 a5 35. Rxe7 Kg7 36. Qe5+ Kg6 37. Qe4+ f5 38. Qe6+ Kg5 39. Rg7+ Kh5 40. Qxf5+ Kh6 41. Qf6+ Kh5 42. Rg5# {Accuracy: White = 42%, Black = 11%.} 1-0

A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 c5 3.e3 Nc6 4.b3 Nf6 5.Bb2 e6)

[Event "rated blitz match"] [Site "Free Internet Chess Server"] [Date "2008.12.03"] [Round "?"] [White "Spinosa"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1266"] [BlackElo "1524"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "14"] [EventDate "2008.??.??"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 3. e3 Nc6 4. b3 Nf6 5. Bb2 e6 {0.39/26 A03 Bird's Opening with 1...d5} (5... g6 $11 {-0.12/24}) 6. d3 $2 {-1.44/21 [#]} (6. Ne5 $14 {0.39/26 keeps the upper hand.}) 6... Be7 { -0.42/27} (6... d4 $17 {-1.44/21} 7. exd4 cxd4) (6... Qc7 7. g3 Bd6 8. Nc3 e5 9. Qd2 a6 10. O-O-O Be6 11. Kb1 O-O-O 12. Nh4 d4 13. fxe5 Bxe5 14. Ne2 Ng4 15. exd4 cxd4 16. Re1 Ne3 17. Nf3 Bf6 18. Nf4 Bg4 19. Qf2 Nxc2 20. Rc1 Bxf3 21. Qxf3 {Pace,P (2233)-Brugo,M (2091) Robecchetto 2006 0-1 (35)}) (6... Bd6 7. Qd2 Qa5 8. Ne5 Qxd2+ 9. Kxd2 Bxe5 10. fxe5 Ng4 11. d4 cxd4 12. exd4 Nf2 13. Rg1 Ne4+ 14. Ke3 O-O 15. Ba3 Rd8 16. Bd3 f5 17. Bxe4 dxe4 18. c3 Kf7 19. Nd2 Ne7 20. c4 Nc6 21. Bd6 {Costa Trave,J (1950)-Martin Arranz,L (1595) Barcelona 2018 1-0 (48)}) 7. Nbd2 {-1.21/23} ({White should try} 7. Ne5 $15 {-0.42/27}) 7... O-O $146 {-0.41/28} (7... d4 $17 {-1.21/23} 8. exd4 cxd4) (7... Qc7 8. Be2 Ng4 9. Nf1 Qa5+ 10. Qd2 Qxd2+ 11. Kxd2 O-O 12. h3 Nf6 13. g4 Rd8 14. Ng3 b5 15. Ke1 Nb4 16. Bd1 c4 17. g5 Ne8 18. a3 Nc6 19. Be2 cxb3 20. cxb3 Nd6 21. Rc1 Bb7 22. Rg1 {Sigurdsson,A-Simonsen,S Reykjavik 2011 1/2-1/2 (67)}) 0-1 [Event "Rated Bullet game"] [Site "https://lichess.org/4eRh7v4O"] [Date "2019.10.20"] [Round "?"] [White "hirotomo"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1655"] [BlackElo "1688"] [Annotator "Tactical Analysis 2.10 (5s), TV"] [PlyCount "64"] [EventDate "2019.??.??"] 1. f4 (1. b3 Nf6 2. Bb2 e6 3. f4 (3. e3 d5 4. f4 c5 {0-1 (35) Pace,P (2233) -Brugo,M (2091) Robecchetto 2006}) 3... d5 4. Nf3 c5 5. e3 {1-0 (25) Organisciak,W-Wyrwa,Z Ustrzyki Dolne 1996}) 1... d5 {A03 Bird Opening: Dutch Variation} (1... Nf6 2. Nf3 e6 3. b3 d5 {1-0 (48) Costa Trave,J (1950)-Martin Arranz,L (1595) Barcelona 2018}) 2. Nf3 c5 3. e3 Nc6 4. b3 Nf6 5. Bb2 e6 { 0.59/21 A03 Bird's Opening with 1...d5} (5... g6 $15 {-0.32/21}) 6. d3 $2 { -1.18/19 [#]} (6. Bb5 $14 {0.59/21 stays ahead.}) 6... Be7 {-0.26/22} (6... d4 $17 {-1.18/19} 7. Qe2 Nd5 8. exd4 cxd4) (6... Qc7 7. g3 Bd6 8. Nc3 e5 9. Qd2 a6 10. O-O-O Be6 11. Kb1 O-O-O 12. Nh4 d4 13. fxe5 Bxe5 14. Ne2 Ng4 15. exd4 cxd4 16. Re1 Ne3 17. Nf3 Bf6 18. Nf4 Bg4 19. Qf2 Nxc2 20. Rc1 Bxf3 21. Qxf3 { Pace,P (2233)-Brugo,M (2091) Robecchetto 2006 0-1 (35)}) (6... Bd6 7. Qd2 Qa5 8. Ne5 Qxd2+ 9. Kxd2 Bxe5 10. fxe5 Ng4 11. d4 cxd4 12. exd4 Nf2 13. Rg1 Ne4+ 14. Ke3 O-O 15. Ba3 Rd8 16. Bd3 f5 17. Bxe4 dxe4 18. c3 Kf7 19. Nd2 Ne7 20. c4 Nc6 21. Bd6 {Costa Trave,J (1950)-Martin Arranz,L (1595) Barcelona 2018 1-0 (48)}) 7. Nbd2 {-1.70/20} (7. Ne5 $11 {-0.26/22 and White has nothing to worry. }) 7... O-O {-0.56/22} (7... Ng4 $19 {-1.70/20} 8. Qe2 O-O) 8. Be2 {-1.83/21} ( 8. Ne5 $15 {-0.56/22}) 8... Bd7 $146 {0.44/22} (8... d4 $19 {-1.83/21} 9. e4 Ng4 10. Nxd4 Ne3 11. Nxc6 bxc6) (8... Qc7 9. Ne5 Ne8 10. O-O f6 11. Nxc6 Qxc6 12. Qe1 Qc7 13. Qg3 b5 14. c4 Rb8 15. Rac1 Qb6 16. Ba1 Nd6 17. Bf3 bxc4 18. dxc4 Nf5 19. Qf2 d4 20. e4 Ne3 21. Rfe1 f5 22. exf5 exf5 23. Nf1 {Organisciak, W-Wyrwa,Z Ustrzyki Dolne 1996 1-0}) 9. a3 $2 {-1.90/21} (9. Ne5 $1 $14 {0.44/22 }) 9... a6 $2 {0.06/22} (9... d4 $1 $19 {-1.90/21 And now ...Nd5 would win.} 10. exd4 Nd5) 10. O-O $2 {-2.27/20} (10. Ne5 $1 $11 {0.06/22}) 10... b5 $2 { 0.48/20} ({Black should try} 10... Ng4 $19 {-2.27/20} 11. Re1 Nxe3) 11. Qe1 { -0.45/19} (11. Ne5 $14 {0.48/20}) 11... Re8 {0.69/20} ({Better is} 11... d4 $15 {-0.45/19}) 12. Qg3 {0.00/22} (12. Qf2 $14 {0.69/20}) 12... Bd6 {1.28/21} ( 12... d4 $11 {0.00/22}) 13. Nh4 $2 {-1.53/18} (13. Ne5 $16 {1.28/21 keeps the pressure on.} Be7 14. Ndf3) 13... d4 {-0.26/23} (13... e5 $1 $17 {-1.53/18 aiming for ...exf4.} 14. fxe5 Bxe5 15. Bxe5 Rxe5) 14. e4 $11 {[#] Black must now prevent e5.} e5 15. f5 a5 {-0.31/22} (15... h6 $17 {-0.90/21}) 16. Rf2 { -1.14/21} (16. a4 $15 {-0.31/22}) 16... a4 $17 17. Raf1 {-1.75/22} (17. Rff1 $17 {-0.93/22}) 17... axb3 18. cxb3 Qa5 {-0.34/21} (18... Na5 $17 {-1.58/21} 19. Re1 Bc6) 19. Bg4 {-1.61/20} ({White should play} 19. Bd1 $15 {-0.34/21}) 19... Reb8 {-0.77/22} (19... Be7 $19 {-1.61/20 has better winning chances.} 20. Rb1 Qd8) 20. Ndf3 $2 {-2.63/20} (20. Bc1 $17 {-0.77/22}) 20... c4 $19 21. b4 Qa4 22. dxc4 $2 {-5.34/22} (22. Ng5 {-2.50/23 was necessary.}) 22... bxc4 23. Nxd4 {-7.54/19} (23. Ng5 $142 {-4.19/21} h6 24. Nxf7 Kxf7 25. Be2 (25. Bd1 $2 Qa7 $19)) 23... Nxd4 24. Bxd4 Nxe4 25. Qe3 Nxf2 26. Bxe5 Nxg4 27. Qd4 Bxe5 28. Qxg4 Qxa3 29. Qh5 Qxb4 {-44.78/25} (29... Qe3+ $142 {-#12/28} 30. Kh1 Qd4 31. Qe2 Ra1 32. Nf3 Qb2 33. Rxa1 Qxe2 34. Re1 Qf2 35. Rxe5 Qf1+ 36. Ng1 Rxb4 37. Re1 Qxe1 38. h3 Bc6 39. Kh2 Qf2 40. Nf3 Bxf3 41. Kh1 Qxg2#) 30. f6 Bxf6 { -69.10/23} (30... Qb6+ $142 {-#8/41} 31. Kh1 Ra1 32. Rxa1 Qb1+ $1 33. Qd1 Bxa1 34. Qg1 Bd4 35. Nf3 Bxg1 36. h3 Be3+ 37. Ne1 Qxe1+ 38. Kh2 Bf4+ 39. g3 Rb2#) 31. Nf5 Bxf5 32. Qxf5 Qb6+ {Accuracy: White = 11%, Black = 14%.} 0-1

A03 Bird's Opening with 1...d5 (1.d3 e6 2.f4 d5 3.Nf3 c5 4.c3 Nc6 5.g3 Nf6 6.Bg2 Bd6 7.O-O O-O)

[Event "Friendly Game, 2m + 0s"] [Site "Beginners"] [Date "2008.09.15"] [Round "?"] [White "trallala"] [Black "Vierjoki, Timo"] [Result "1-0"] [ECO "A03"] [BlackElo "1720"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "93"] [EventDate "2008.07.08"] [SourceTitle "playchess.com"] 1. d3 {A00 Mieses Opening} e6 2. f4 d5 3. Nf3 c5 4. c3 Nc6 5. g3 Nf6 6. Bg2 Bd6 7. O-O O-O {A03 Bird's Opening with 1...d5} 8. Nbd2 {-0.62/28} (8. e4 $11 { 0.29/27} dxe4 9. dxe4 Nxe4 10. Na3) 8... Re8 $2 {1.10/22} (8... Ng4 $15 { -0.62/28 keeps the upper hand.} 9. Nb3 a5) 9. e4 $16 {aiming for e5.} dxe4 { 1.05/27} (9... Ng4 $14 {0.43/26}) 10. dxe4 {Threatens to win with e5.White is better.} e5 11. Nc4 Bc7 {1.39/23 [#]} (11... Bb8 $14 {0.60/30}) 12. Qxd8 { 0.50/29} (12. fxe5 $1 $16 {1.39/23} Be6 13. Nd6) 12... Rxd8 $14 13. Nfxe5 { 0.25/27} (13. Ncxe5 $16 {0.78/27} Nxe5 14. Nxe5) 13... b5 $2 {7.89/26} (13... Nxe5 $11 {0.25/27} 14. Nxe5 (14. fxe5 Ng4 $14) 14... Be6) 14. Nxc6 $18 Re8 15. N4e5 Bxe5 16. Nxe5 Bb7 17. Re1 Rad8 18. Be3 Ng4 19. Bxc5 Nxe5 20. fxe5 Rxe5 21. Bd4 Re6 22. e5 a6 23. Rad1 Bxg2 24. Kxg2 Rde8 25. Kf3 f6 26. h4 fxe5 27. Be3 h6 28. Rd5 Rf6+ 29. Ke4 Rfe6 30. Rf1 Rb8 31. Rf5 b4 32. c4 a5 33. Rfxe5 Rxe5+ 34. Rxe5 {Endgame KRB-KR} Rc8 35. c5 Kf7 36. Kd5 Kf6 37. Re4 Kf5 38. Rf4+ Kg6 39. c6 Rd8+ 40. Ke6 Rd3 41. Bf2 Rd2 42. c7 Rc2 43. Kd7 Rd2+ 44. Kc6 Rc2+ 45. Kb7 { 62.27/28} (45. Bc5 $142 {#7/29} Re2 {[#]} 46. h5+ $1 Kh7 47. c8=Q Rh2 48. Qf5+ Kh8 49. Qg6 Rf2 50. Rxf2 Kg8 51. Rf8#) 45... Rxb2 46. c8=Q Rxa2 47. Qf5# { Accuracy: White = 50%, Black = 14%.} 1-0

A03 Bird's Opening with 1...d5 (1.f4 d5 2.Nf3 c5 3.b3 Nc6 4.e3 Nf6 5.Bb2 e6 6.Bb5)

[Event "Friendly Game, 2m + 0s"] [Site "Beginners"] [Date "2008.09.14"] [Round "?"] [White "trallala"] [Black "Vierjoki, Timo"] [Result "1-0"] [ECO "A03"] [BlackElo "1720"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "45"] [EventDate "2008.07.08"] [SourceTitle "playchess.com"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 3. b3 Nc6 4. e3 Nf6 5. Bb2 e6 6. Bb5 {-0.05/27 A03 Bird's Opening with 1...d5} (6. Be2 $14 {0.46/22}) 6... Qb6 {0.57/21} (6... Bd7 $11 {-0.05/27}) 7. Bxc6+ {-0.13/25} ({White should try} 7. c4 $14 {0.57/21}) 7... Qxc6 $11 8. Ne5 {-0.26/22} (8. a4 $142 { 0.16/24}) 8... Qc7 {0.16/26} (8... Qd6 $142 {-0.26/22}) 9. O-O (9. d3 b6 10. Nd2 a5 11. Ndf3 Ra7 12. Ng5 Qd6 13. Qf3 h6 14. Qh3 hxg5 15. Qxh8 gxf4 16. exf4 d4 17. O-O Bb7 18. Rae1 Nd5 19. Bc1 Nc3 20. f5 Bd5 21. fxe6 Bxe6 22. Bf4 Nd5 23. Nxf7 Qxf4 {Panic,N (2407)-Veleski,R (2269) Budva 2009 1-0}) 9... Bd6 { 0.56/24} (9... b6 $15 {-0.49/22}) (9... b5 10. a4 b4 11. d3 Bd6 12. Nd2 Bb7 13. Rc1 Rd8 14. Qe1 h5 15. h3 Qe7 16. Ndf3 Bxe5 17. Bxe5 Kf8 18. c3 Ne8 19. cxb4 cxb4 20. Bd4 Ba6 21. Bc5 Nd6 22. Qxb4 Kg8 23. Ne5 Qc7 24. Bxd6 {Molina,J (1797) -Ramirez,M (2036) Sucre 2016 1-0 (44)}) 10. Nc3 $146 {-0.64/24} (10. c4 $14 { 0.56/24}) (10. Qe1 Qe7 11. d3 O-O 12. Rf3 Ne8 13. Rh3 Bxe5 14. fxe5 f5 15. Nd2 Bd7 16. Qg3 g6 17. Nf3 Rf7 18. Ng5 Rg7 19. Rh6 Nc7 20. Rf1 Bc6 21. Rf4 Rf8 22. Rfh4 Rff7 23. d4 c4 24. Nxf7 Qxf7 {Grover,S (2492)-Skosana,S (2057) Durban 2014 1-0 (37)}) 10... O-O $2 {1.08/22} (10... a6 $1 $15 {-0.64/24 keeps the upper hand.}) 11. Nb5 $16 Qb8 {1.82/23} (11... Qe7 $16 {1.02/29 was worth a try.}) 12. a4 {1.01/27} (12. Rf3 $1 $18 {1.82/23}) 12... Be7 $2 {3.67/24 [#]} ( 12... Rd8 $16 {1.01/27 was necessary.}) 13. Ng4 $2 {-0.70/26} ({Only move:} 13. Ng6 $1 $18 {3.67/24} hxg6 (13... fxg6 14. Be5) 14. Be5) 13... Ne4 $2 {8.43/26} (13... Nxg4 $15 {-0.70/26} 14. Qxg4 f6) 14. Be5 $18 Nd6 {[#]} 15. Nh6+ $1 Kh8 ( 15... gxh6 16. Qg4+) 16. Qg4 $2 {-0.77/28} ({Better is} 16. Qh5 $18 {6.24/30} f6 17. Nxd6 Bxd6 18. Nf7+ Rxf7 19. Qxf7) 16... f6 $17 17. Nxd6 {-1.68/29} (17. Qh4 $1 $11 {-0.27/32 and White is okay.}) 17... Bxd6 $19 18. Qh4 gxh6 $4 { 3.28/24} ({But not} 18... fxe5 19. fxe5 gxh6 20. exd6 $15) (18... Bxe5 $19 { -1.79/28 avoids the disaster.} 19. fxe5 Qxe5) 19. Bxf6+ $18 Rxf6 $2 {#5/23} ( 19... Kg8 $18 {3.06/30} 20. Rf3 (20. Qxh6 Qc7 $11) 20... Kf7) 20. Qxf6+ Kg8 21. Rf3 {White mates.} Qc7 22. Rg3+ Qg7 23. Qxg7# {Accuracy: White = 22%, Black = 27%.} 1-0 [Event "ICC 3 0"] [Site "Internet Chess Club"] [Date "2011.02.16"] [Round "?"] [White "funplay"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1362"] [BlackElo "1429"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "84"] [EventDate "2011.??.??"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 3. e3 Nc6 4. b3 Nf6 5. Bb2 e6 6. Bb5 {0.00/25 A03 Bird's Opening with 1...d5} (6. Ne5 $14 {0.49/23 was preferrable.}) 6... Qb6 {0.52/25} (6... Bd7 $11 {0.00/25}) 7. Bxc6+ { -0.15/25} (7. c4 $14 {0.52/25}) 7... Qxc6 $11 8. O-O (8. Ne5 Qc7 9. d3 (9. O-O b5 10. a4 b4 11. d3 Bd6 12. Nd2 Bb7 13. Rc1 Rd8 14. Qe1 h5 15. h3 Qe7 16. Ndf3 Bxe5 17. Bxe5 Kf8 18. c3 Ne8 19. cxb4 cxb4 20. Bd4 Ba6 21. Bc5 Nd6 22. Qxb4 Kg8 23. Ne5 Qc7 {Molina,J (1797)-Ramirez,M (2036) Sucre 2016 1-0 (44)}) 9... b6 10. Nd2 a5 11. Ndf3 Ra7 12. Ng5 Qd6 13. Qf3 h6 14. Qh3 hxg5 15. Qxh8 gxf4 16. exf4 d4 17. O-O Bb7 18. Rae1 Nd5 19. Bc1 Nc3 20. f5 Bd5 21. fxe6 Bxe6 22. Bf4 Nd5 { Panic,N (2407)-Veleski,R (2269) Budva 2009 1-0}) 8... Be7 {The position is equal.} 9. d3 $146 {-0.43/21} (9. Ne5 $11 {0.19/26} Qc7 10. Nc3 (10. d3 O-O 11. Rf3 Ne8 12. Rh3 Bf6 13. Qh5 h6 14. g4 Bxe5 15. Bxe5 Qe7 16. g5 f6 17. gxf6 Nxf6 18. Qg6 Kh8 19. Nd2 Qf7 20. Qg3 Kh7 21. Kh1 Qg6 22. Qh4 Qf5 23. Rg1 Bd7 24. Rg5 Qxh3 {Dobrovolskiy,R (2124)-Antonov,A (1903) Krasnoyarsk 2015 1-0})) 9... O-O { 0.20/24} (9... b6 $15 {-0.43/21}) 10. Nbd2 {-0.49/23} (10. Ne5 $11 {0.20/24} Qe8 11. a4) 10... b5 {0.30/25} (10... Ne8 $15 {-0.49/23}) 11. Ne5 {-0.14/28} ( 11. a4 {0.30/25 feels stronger.}) 11... Qc7 12. Ndf3 {-0.84/25} (12. a4 $11 { 0.19/28}) 12... Bb7 {-0.06/25} (12... Ne8 $17 {-0.84/25}) 13. Rc1 {-1.23/23} ( 13. a4 $11 {-0.06/25}) 13... c4 {0.05/25} (13... a5 $17 {-1.23/23}) 14. dxc4 $2 {-1.49/25} (14. Bd4 $11 {0.05/25}) 14... dxc4 {-0.91/27} (14... bxc4 $142 { -1.49/25} 15. bxc4 dxc4) 15. Bd4 {-1.81/21} (15. bxc4 $17 {-0.91/27 might work better.} bxc4 16. Bd4) 15... Rfd8 {-0.48/27} (15... Ne4 $1 $19 {-1.81/21} 16. Ng4 f6) 16. Qe1 {-1.18/24} ({White should play} 16. Qe2 $15 {-0.48/27}) 16... a5 {-0.50/28} ({Black should try} 16... Ne4 $17 {-1.18/24} 17. Ng5 Bxg5 18. fxg5 Nxg5) 17. Qg3 {-1.19/22} (17. bxc4 $15 {-0.50/28} bxc4 18. Rb1) 17... Ne4 $17 18. Qh3 f6 $2 {#5/29} (18... Bd6 $17 {-1.30/27} 19. bxc4 Bxe5 20. Nxe5 bxc4 ) 19. Ng4 $4 {-2.32/22} (19. Qxe6+ {#5/29 mates} Kh8 20. Nf7+ Kg8 21. Nh6+ Kh8 22. Qg8+ $1 Rxg8 23. Nf7#) 19... Bc5 {-1.05/24} (19... Ra6 $19 {-2.32/22 is more deadly.} 20. a4 bxa4 21. bxa4 c3) 20. Rfd1 {-1.90/23} (20. Rcd1 $17 { -1.05/24}) 20... Bxd4 $19 21. Nxd4 Bd5 $2 {0.20/28 [#]} ({Better is} 21... Nc3 $1 $19 {-1.80/23} 22. Re1 Qe7 23. bxc4 bxc4) 22. Nf2 {-1.09/28} (22. Nxe6 $1 $11 {0.20/28 keeps the balance.} Bxe6 23. Nh6+ $1 Kh8 24. Rxd8+ Rxd8 25. Qxe6) 22... Qb7 $2 {2.25/25} (22... Nxf2 $1 $17 {-1.09/28 and life is bright.} 23. Kxf2 Qb6) 23. Nxe4 $18 ({Not} 23. Nxe6 Nxf2 24. Kxf2 Re8 $14) 23... Bxe4 24. Qxe6+ Kh8 {[#]} 25. Qh3 $2 {0.00/26} ({Weaker is} 25. bxc4 Re8 $16) (25. Nxb5 $1 $18 {2.42/24} Qxb5 26. Qxe4) 25... cxb3 {0.65/27} (25... c3 $11 {0.00/26}) 26. cxb3 $14 a4 {1.26/25 [#]} (26... h6 $14 {0.53/30}) 27. Qg4 {0.09/33} (27. b4 $1 $16 {1.26/25}) 27... axb3 $11 28. Ne6 $2 {-11.43/27} (28. Nxb3 $11 { 0.09/33} Bd5 29. Rd3) 28... Rxd1+ $19 29. Rxd1 bxa2 30. Ra1 Bb1 31. h4 Qe4 $4 { #1/29} (31... b4 $19 {-11.91/28} 32. Qe2 b3) 32. Kh2 $4 {-9.26/28} (32. Qxg7# { #1/29}) 32... g6 33. h5 Qxe3 34. hxg6 hxg6 $2 {-2.86/25} (34... Ra7 {-10.07/25} 35. Qh3 Qxh3+ 36. gxh3 hxg6) 35. Qh4+ Kg8 36. Qh6 $2 {-#21/24} (36. Qxf6 $19 { -3.17/28} Qa7 37. Ng5) 36... Qxe6 {Black mates.} 37. f5 Qxf5 38. Qe3 Qe5+ 39. Qxe5 fxe5 40. Kg3 Rc8 41. Kf2 Re8 42. Ke3 e4 {Accuracy: White = 5%, Black = 12%.} 0-1 [Event "rated blitz match"] [Site "Free Internet Chess Server"] [Date "2011.02.18"] [Round "?"] [White "trallala"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A03"] [WhiteElo "1343"] [BlackElo "1599"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "50"] [EventDate "2011.??.??"] 1. f4 d5 {A03 Bird Opening: Dutch Variation} 2. Nf3 c5 3. e3 Nc6 4. b3 Nf6 5. Bb2 e6 6. Bb5 {-0.06/25 A03 Bird's Opening with 1...d5} (6. g3 $14 {0.39/22 feels stronger.}) 6... Qb6 {0.66/23} (6... Bd7 $11 {-0.06/25}) 7. Bxc6+ { -0.40/23} (7. c4 $14 {0.66/23}) 7... bxc6 {0.96/22} (7... Qxc6 $15 {-0.40/23 stays ahead.} 8. O-O (8. Ne5 Qc7 9. O-O b5 10. a4 b4 11. d3 Bd6 12. Nd2 Bb7 13. Rc1 Rd8 14. Qe1 h5 15. h3 Qe7 16. Ndf3 Bxe5 17. Bxe5 Kf8 18. c3 Ne8 19. cxb4 cxb4 20. Bd4 Ba6 21. Bc5 Nd6 22. Qxb4 Kg8 {Molina,J (1797)-Ramirez,M (2036) Sucre 2016 1-0 (44)}) 8... Be7 (8... Bd6 9. Ne5 Qc7 10. Qe1 Qe7 11. d3 O-O 12. Rf3 Ne8 13. Rh3 Bxe5 14. fxe5 f5 15. Nd2 Bd7 16. Qg3 g6 17. Nf3 Rf7 18. Ng5 Rg7 19. Rh6 Nc7 20. Rf1 Bc6 21. Rf4 Rf8 22. Rfh4 Rff7 23. d4 {Grover,S (2492) -Skosana,S (2057) Durban 2014 1-0 (37)})) 8. O-O {0.08/26} (8. c4 $16 {0.96/22} ) 8... Ba6 $11 {The position is equal.} 9. Re1 O-O-O $146 {1.59/22 [#]} (9... Be7 $11 {0.00/26} 10. Nc3 O-O 11. Ne2 (11. Ne5 Rad8 12. Qf3 Nd7 13. Nxd7 Rxd7 14. Qg3 f6 15. Qh3 f5 16. Qg3 Bf6 17. Na4 Qa5 18. d4 Be7 19. Nxc5 Bxc5 20. dxc5 Qxc5 21. c4 dxc4 22. Rad1 Rff7 23. Kf2 cxb3 24. Rc1 Rd2+ 25. Kg1 Qd5 {Mauritz, G (1900)-Fruehauf,N (1958) Germany 2007 0-1 (34)}) 11... Rad8 12. a4 c4 13. a5 Qb7 14. Ng3 cxb3 15. cxb3 Rb8 16. Be5 Rbc8 17. f5 (17. Qc2 Nd7 18. Bc3 Nc5 19. b4 Nd3 20. Reb1 Bc4 21. a6 Qb6 22. Ne5 Nxe5 23. Bxe5 Bb5 24. Qb2 f6 25. Bd4 Qc7 26. Rc1 {1/2-1/2 (26) Isaev,A (2042)-Petryakova,N Saratov 2010}) 17... Qd7 18. Qc2 exf5 19. Nxf5 Ne4 20. Nxe7+ Qxe7 21. Bb2 Qe6 22. d3 Nd6 23. Nd4 Qg6 24. Rad1 Rfe8 {Steiner,E-Prokes,L Budapest 1929 1/2-1/2 (44)}) 10. Nc3 h6 {1.97/23} (10... Qc7 $16 {1.26/26}) 11. Na4 $18 Qb7 {2.61/21} (11... Qc7 $142 {1.86/23} 12. Rc1 Nd7) 12. Be5 $2 {0.94/25} (12. Ne5 $18 {2.61/21}) 12... Nd7 $16 13. c4 {0.92/27} ({Better is} 13. Rb1 {1.48/23}) 13... Rg8 {1.94/21} (13... dxc4 $16 { 0.92/27 was necessary.} 14. Bc3 f6) 14. Rb1 {0.62/22} (14. Qc2 $18 {1.94/21}) 14... g5 $1 $14 15. cxd5 {-0.21/26} ({White should try} 15. Bc3 $16 {1.08/24}) 15... cxd5 $2 {2.17/24} (15... g4 $1 $11 {-0.21/26} 16. dxc6 Qxc6) 16. b4 $36 { Threatens to win with bxc5. White is in control.} c4 $2 {4.39/28 [#]} (16... Bd3 $16 {1.52/27 was worth a try.}) 17. Nc5 $1 $18 Qc6 (17... Nxc5 18. bxc5) 18. Nd4 Qb6 19. a4 {Hoping for a5.} Nxc5 {10.24/23} (19... Bxc5 $142 {4.35/30} 20. a5 (20. bxc5 Qxc5 21. Qh5 Rg6 $11) 20... Bxd4) 20. a5 Qb7 21. bxc5 Bb5 22. Rxb5 Qa6 23. Qb1 {28.63/25} (23. Rb8+ $142 {#9/36} Kd7 24. Qa4+ Ke7 25. Nc6+ Qxc6 26. Qxc6 Rxb8 27. Qd6+ Ke8 28. Qxb8+ Ke7 29. Rb1 Kd7 30. Qxa7+ Ke8 31. Rb8#) 23... f6 24. Rb8+ Kd7 25. Rb7+ {28.22/23} (25. c6+ $142 {#9/25} Qxc6 26. Nxc6 Rxb8 27. Qxb8 gxf4 28. Qc7+ Ke8 29. Qd8+ Kf7 30. Qxf6+ Ke8 31. Qxe6+ Be7 32. Qxe7#) 25... Ke8 {Accuracy: White = 29%, Black = 19%.} 0-1