A00 Irregular Openings (1.g3 d5 2.Bg2 e5)

[Event "Pogo"] [Site "?"] [Date "2003.12.02"] [Round "?"] [White "zbau7"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A00"] [WhiteElo "1565"] [BlackElo "1831"] [Annotator "Tactical Analysis 2.10 (5s)"] [PlyCount "94"] [EventDate "2003.11.13"] [EventType "blitz"] 1. g3 d5 (1... e5 2. Bg2 {0-1 (48) Conic,V-Danojlic,P (1890) Belgrade 2007}) 2. Bg2 e5 {A00 Irregular Openings} 3. e4 d4 4. c3 (4. Ne2 Bg4 5. f3 Be6 6. d3 Nc6 7. O-O Bc5 8. f4 f6 9. b4 Bxb4 10. Ba3 Bxa3 11. Nxa3 Nh6 12. Rb1 b6 13. g4 Nxg4 14. Qd2 Ne3 15. Rf2 Bxa2 16. Rb5 a6 17. Rb2 Be6 18. f5 Bf7 {Hernandez Garcia, J-Ferrer Mygina,J (1608) Salta Margalida 2016 0-1}) 4... c5 (4... Nc6 5. Nf3 Bg4 6. O-O Nf6 7. Qa4 Bxf3 8. Bxf3 Bd6 9. cxd4 Qd7 10. dxe5 Bxe5 11. Nc3 Bxc3 12. bxc3 O-O 13. d4 Ne5 14. Qxd7 Nxf3+ 15. Kg2 Nh4+ 16. Kh3 Nxd7 17. Kxh4 Nf6 18. e5 Ne4 19. Bb2 {Weidt,F-Butler,A Littlethorpe 2005 1-0 (33)}) 5. cxd4 $146 (5. Nf3 Nc6 6. O-O Be7 7. Qb3 Na5 8. Qa4+ Bd7 9. Qc2 d3 10. Qxd3 Qb6 11. Nxe5 Be6 12. Na3 a6 13. Nac4 Nxc4 14. Nxc4 Qc7 15. b3 b5 16. Ne3 Rd8 17. Qe2 c4 18. b4 Rd3 19. Nf5 g6 {Conic,V-Danojlic,P (1890) Belgrade 2007 0-1 (48)}) 5... cxd4 6. Ne2 {-1.50/20} (6. d3 $15 {-0.33/22}) 6... Nc6 {-0.41/21} (6... d3 $17 { -1.50/20} 7. Nec3 Nc6) 7. d3 $1 $15 Nf6 {-0.34/22} (7... Qa5+ $17 {-0.87/19} 8. Nd2 Qa6) 8. Qa4 {-1.82/18} (8. O-O $15 {-0.34/22}) 8... Be7 {-1.02/21} (8... h5 $19 {-1.82/18} 9. Nd2 h4) 9. Nd2 {-1.78/20} (9. Bg5 $17 {-1.02/21 might work better.}) 9... O-O 10. O-O {-2.12/18} (10. a3 $17 {-1.50/23}) 10... Bg4 { -0.78/22} (10... Nb4 $1 $19 {-2.12/18} 11. f4 Nxd3) 11. f3 $17 Be6 {-0.74/20} ( 11... Bd7 $142 {-1.15/18} 12. Qd1 Rc8) 12. b3 $2 {-4.68/21} (12. f4 $17 { -0.74/20 is a better chance.}) 12... a6 $19 {...b5 is the strong threat.} 13. Ba3 {-9.83/20} (13. b4 $142 {-4.16/22} Nxb4 14. Ba3) 13... Bxa3 $2 {-1.16/20} ( 13... b5 $19 {-9.83/20} 14. Bxe7 Qxe7) 14. Qxa3 $17 Qa5 {0.11/24} (14... a5 $17 {-1.34/19} 15. Qb2 a4) 15. Qxa5 $11 Nxa5 16. Nc4 {-1.05/18} (16. Rfc1 $11 { 0.22/24}) 16... Nxc4 $17 17. bxc4 {-1.34/22} (17. dxc4 $142 {-0.93/24} Nd7 18. Nc1) 17... Rac8 $2 {0.53/23} (17... Nd7 $1 $17 {-1.34/22} 18. f4 f6) 18. Rfc1 $2 {-1.25/19} (18. f4 $1 $14 {0.53/23}) 18... Rc7 {-0.09/25} (18... Nd7 $1 $17 {-1.25/19} 19. Rab1 Nc5) 19. a4 {-0.64/19} (19. f4 $11 {-0.09/25}) 19... Nd7 $15 20. f4 {-1.04/21} (20. Rcb1 $15 {-0.56/26}) 20... f6 {-0.16/22} (20... Bg4 $17 {-1.04/21} 21. Re1 Nc5) 21. f5 {-1.19/23} (21. Rcb1 $1 $11 {-0.16/22 keeps the balance.}) 21... Bf7 $17 22. Bf3 {-1.74/21} (22. Rcb1 $17 {-1.20/27 is a better defense.}) 22... Nc5 $36 {Black is really pushing.} 23. Ra3 Be8 { -0.56/24} (23... a5 $19 {-1.73/24} 24. Rca1 Be8) 24. Rca1 {-1.73/19} (24. a5 $15 {-0.56/24}) 24... Bc6 {-0.67/21} (24... a5 $19 {-1.73/19} 25. Nc1 b6) 25. Nc1 {-1.71/23} ({White should try} 25. a5 $15 {-0.67/21}) 25... Rb8 26. Kf2 { -1.77/23} (26. Bd1 $17 {-1.31/25}) 26... b5 {-1.12/28} (26... a5 $19 {-1.77/23} 27. Be2 b6) 27. axb5 axb5 28. Rb1 {-2.09/21 [#]} (28. cxb5 $17 {-0.91/25} Bxb5 29. Bd1) 28... Rcb7 {-0.78/25} (28... b4 $1 $19 {-2.09/21} 29. Ra5 Ba4) 29. cxb5 {-1.35/22} (29. Rb4 $142 {-0.78/25}) 29... Rxb5 $17 30. Rxb5 Rxb5 31. Be2 $2 {-3.49/22 [#]} (31. Ra1 $17 {-1.36/27 only move.}) 31... Rb2 $2 {-0.90/26} ( 31... Rb1 $1 $19 {-3.49/22} 32. Na2 Ba4) 32. Kf3 $2 {-3.95/23} (32. Ke1 $17 { -0.90/26 is tougher.}) 32... Bb5 33. Ra5 Kf7 34. h4 Rb1 35. h5 Rxc1 $2 { -1.07/21} (35... Ke7 $19 {-4.53/23 is more deadly. White must now prevent ... Kd6.} 36. Na2 Nxd3) 36. Rxb5 $19 {Endgame KRB-KRN} Na4 $2 {0.00/40} (36... Rc3 $19 {-2.12/27} 37. Rb1 h6) 37. Rb7+ $11 Kf8 38. h6 gxh6 39. Rxh7 Nc3 40. Rxh6 Kf7 (40... Kg7 {seems wilder.} 41. Rg6+ Kf7 42. Rh6 Re1 43. Rh2 Nxe2 44. Rxe2 Rd1) 41. g4 Re1 42. Rh7+ Kg8 43. Rh2 Kg7 44. Kf2 $2 {-#19/31} (44. Rf2 $11 { 0.00/38}) 44... Rxe2+ {Black mates.} 45. Kg3 Rxh2 46. Kxh2 Kh6 47. Kg3 Kg5 { Accuracy: White = 12%, Black = 29%.} 0-1 [Event "ICC 10 0"] [Site "Internet Chess Club"] [Date "2014.11.04"] [Round "?"] [White "Kojjootti"] [Black "Vierjoki, Timo"] [Result "1-0"] [ECO "A00"] [WhiteElo "1552"] [BlackElo "1531"] [Annotator "Tactical Analysis 2.10 (30s)"] [PlyCount "45"] [EventDate "2014.??.??"] [TimeControl "600"] 1. g3 d5 2. Bg2 e5 {A00 Irregular Openings} 3. e4 Nf6 (3... dxe4 4. Bxe4 Nf6 5. Bg2 Bc5 6. d3 O-O 7. Bg5 h6 8. Be3 Qe7 9. Nc3 c6 10. Nf3 Bxe3 11. fxe3 e4 12. dxe4 Nxe4 13. Nxe4 Qxe4 14. Qe2 Re8 15. Kf2 Bf5 16. Nd4 Qe5 17. c3 Nd7 18. Rhf1 {Baffa,P-Detter,P (2190) Ciro 1998 0-1 (40)}) 4. d3 c6 $146 (4... Nc6 5. c3 Bc5 6. b4 Bb6 7. a4 a6 8. a5 Ba7 9. Na3 dxe4 10. dxe4 Qxd1+ 11. Kxd1 Bxf2 12. Nh3 Bxh3 13. Bxh3 Nxe4 14. Bb2 O-O 15. Bg2 Nf6 16. Bxc6 bxc6 17. Rf1 Ba7 18. Nc4 Rfe8 19. Bc1 {Sandikoglu,E-Cinkilic,H (1773) Kemeri 2012 0-1 (35)}) (4... Be6 5. c3 dxe4 6. Qa4+ c6 7. dxe4 Qb6 8. h3 Bc5 9. Qc2 O-O 10. b4 Be7 11. Be3 Qc7 12. Nf3 Nbd7 13. Ng5 Bc4 14. Nd2 Ba6 15. Qb3 h6 16. Ngf3 b6 17. a4 c5 18. b5 Bb7 19. Nh2 {Huth,H (1178)-Hiller,U (1521) Undeloh 2004 1/2-1/2 (48)}) 5. Ne2 Bc5 {0.12/25} (5... dxe4 $17 {-1.05/22} 6. Nbc3 exd3 7. cxd3 Bc5) 6. O-O { -0.72/26} (6. exd5 $11 {0.12/25} cxd5 7. O-O) 6... O-O {0.36/26} (6... dxe4 $17 {-0.72/26} 7. dxe4 O-O) 7. Nbc3 {-0.61/23} (7. exd5 $1 $14 {0.36/26} cxd5 8. Bg5) 7... Be6 {0.25/30} ({Black should try} 7... dxe4 $15 {-0.61/23} 8. dxe4 Be6) 8. Kh1 {-0.83/22} (8. d4 $11 {0.25/30 keeps the balance.} exd4 9. exd5) 8... dxe4 {-0.22/25} (8... d4 $17 {-0.83/22} 9. Nb1 Nbd7) 9. Nxe4 $11 Nxe4 10. dxe4 $2 {-2.18/22} (10. Bxe4 $11 {-0.26/25} Nd7 11. Nc3) 10... Qb6 $2 {-0.13/26 } (10... Qxd1 $1 $19 {-2.18/22} 11. Rxd1 Bxf2) 11. f4 exf4 {0.07/29} (11... Rd8 $15 {-0.68/24} 12. Qe1 Nd7) 12. gxf4 Bc4 $2 {1.59/24} (12... Nd7 $11 {-0.18/29} ) 13. Rf3 {0.75/29} (13. b3 $142 {1.59/24}) 13... Rd8 14. Qe1 Qa6 {1.89/23} ({ Black should play} 14... Nd7 $14 {0.64/29}) 15. Nc3 $18 Bb4 $2 {3.24/23} (15... f6 {1.72/27}) 16. a3 Nd7 {3.96/24} (16... c5 $142 {2.69/26} 17. b3 Be2 18. axb4 (18. Qxe2 Bxc3 19. Qxa6 Nxa6 $11) 18... Qxa1 19. Nxe2 cxb4) 17. Qh4 $2 {0.00/29 } (17. b3 $18 {3.96/24}) 17... Nf6 {1.47/21 [#]} (17... Bxc3 $1 $11 {0.00/29} 18. Rxc3 Bf1) 18. Be3 $1 $16 Bxc3 19. bxc3 Nxe4 {1.93/26} (19... Be2 $16 { 1.21/28 keeps fighting.}) 20. Rh3 $18 Nf6 21. Bd4 $2 {0.24/26 [#]} (21. Rg1 $18 {1.85/25}) 21... h6 $2 {14.40/25} (21... Rxd4 $1 $11 {0.24/26} 22. cxd4 Bd5) 22. Bxf6 {White threatens Qxh6! and mate.} gxf6 23. Qxh6 {Black resigns. Accuracy: White = 40%, Black = 15%.} 1-0 [Event "SalSK"] [Site "?"] [Date "2016.02.21"] [Round "4"] [White "Ahokas, Heikki"] [Black "Vierjoki, Timo"] [Result "1-0"] [ECO "A00"] [WhiteElo "1724"] [BlackElo "1733"] [Annotator "Tactical Analysis 2.10 (30s)"] [PlyCount "63"] 1. g3 d5 2. Bg2 e5 {A00 Irregular Openings} 3. b4 Bxb4 (3... Nf6 4. Bb2 (4. a3 Bd6 5. Bb2 O-O 6. Nf3 Re8 7. d3 c6 8. Nbd2 Bf5 9. O-O Qc8 10. e4 Bh3 11. Re1 Bxg2 12. Kxg2 Nbd7 13. d4 exd4 14. exd5 Nxd5 15. Bxd4 c5 16. bxc5 Bxc5 17. Rxe8+ Qxe8 18. Nb3 Bxd4 {Neumann,T (1662)-Borchert,L (1829) Willingen 2015 0-1 (44)}) 4... Bd6 5. c4 c6 6. Qb3 dxc4 7. Qxc4 Be6 8. Qc2 Nbd7 9. Nf3 O-O 10. O-O Qe7 11. d3 Nd5 12. a3 a5 13. bxa5 Rxa5 14. Nbd2 N5b6 15. Bc3 Rxa3 16. Rxa3 Bxa3 17. Nxe5 Nxe5 18. Bxe5 {Slipak,S (2405)-Sorokin,M (2490) San Fernando 1993 1/ 2-1/2}) 4. c4 c6 5. Qb3 $146 (5. cxd5 cxd5 6. Qb3 Qb6 7. Bxd5 Nh6 8. Nf3 Nd7 9. Bb2 Bd6 10. Na3 Qxb3 11. Bxb3 O-O 12. Nc4 Bc5 13. Ncxe5 Nxe5 14. Nxe5 b6 15. Bd5 Rb8 16. O-O Bh3 17. Bg2 Bxg2 18. Kxg2 Rfe8 19. e3 Rbd8 {Cupina,I (1674) -Borgmeyer,M (1288) Hamburgo 2002 1-0}) 5... Qa5 {-0.06/28} (5... Qd6 $17 { -1.37/23 Black wants to play ...Ne7.} 6. cxd5 Nf6) 6. cxd5 $11 Nf6 {0.00/29} ( 6... Ne7 $15 {-0.57/21} 7. Ba3 Bxa3 8. dxc6 Nbxc6 9. Qxa3 Qb4) 7. Bb2 {-0.67/24 } (7. Ba3 $11 {0.00/29} Bxa3 8. dxc6 Nxc6 9. Qxa3 Qxa3 10. Nxa3) 7... Bd6 { 0.24/27} (7... O-O $15 {-0.67/24}) 8. Nc3 {-0.41/24} (8. Nf3 $11 {0.24/27}) 8... O-O $15 9. Nf3 {-0.68/25} (9. Rc1 $1 $11 {-0.07/29}) 9... cxd5 {0.19/29} ( 9... e4 $15 {-0.68/25} 10. Nd4 cxd5) 10. Nb5 $11 Be7 {0.62/25} ({Better is} 10... Bb4 $11 {-0.09/26}) 11. Nxe5 {0.00/27} (11. Bxe5 $14 {0.62/25} Nc6 12. Bc3) 11... Be6 {0.86/26} (11... Nc6 $11 {0.00/27}) 12. Nd4 Qa6 {1.44/25} (12... Nbd7 $142 {0.82/29}) 13. Nxe6 {0.87/28} (13. Rc1 $142 {1.44/25}) 13... fxe6 $16 14. O-O {0.57/28} (14. Bh3 $16 {1.07/23}) 14... Nc6 $14 15. Qe3 {0.62/30} (15. Nf3 $16 {1.07/25}) 15... Nxe5 16. Qxe5 Bb4 {1.04/24} (16... Rae8 $14 {0.39/28}) 17. d3 {0.56/28} (17. Qe3 $16 {1.04/24}) 17... Rf7 18. Bh3 {0.56/27} (18. Qe3 $16 {1.12/24}) 18... Re8 19. a3 {0.38/28} (19. Rfc1 $16 {1.03/25}) 19... Ba5 { 1.02/25} (19... Bd6 $14 {0.38/28} 20. Qg5 e5) 20. Rac1 {0.59/28} ({White should play} 20. a4 $16 {1.02/25}) 20... Qb6 {1.52/27} (20... Nd7 $14 {0.59/28} 21. Qe3 Bb6) 21. Bd4 $36 {Black is under strong pressure.} Qa6 22. Rc2 Rfe7 23. Rfc1 {0.96/31} ({White should try} 23. Rb1 {1.41/28}) 23... Nd7 {2.42/23} ( 23... Bb6 $16 {0.96/31}) 24. Qg5 {0.96/31} (24. Qh5 $18 {2.42/23 has better winning chances.}) 24... g6 $2 {3.24/26 [#]} (24... h6 $16 {0.96/31} 25. Qg6 Nf8) 25. Qh6 e5 26. Be3 d4 {3.33/27} (26... Rf7 $142 {2.06/31} 27. Rc8 Bd8) 27. Bg5 $18 Rf7 $2 {14.01/23} (27... Nf6 {3.03/29} 28. Qh4 Rf7) 28. Rc8 Rxc8 29. Rxc8+ Rf8 30. Bxd7 {13.91/35} (30. Rxf8+ $142 {#5/34} Nxf8 31. Be7 Qf6 32. Bxf6 Kf7 33. Qg7+ Ke8 34. Qe7#) 30... Rxc8 31. Bxc8 {[#] Be7 would kill now.} Qc6 32. Qh3 {Accuracy: White = 25%, Black = 19%.} 1-0