A00 Irregular Openings (1.g4 d5)

[Event "Yahoo"] [Site "Internet"] [Date "2004.06.19"] [Round "?"] [White "falgunikarim"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A00"] [Annotator "Tactical Analysis 2.10 (5s), TV"] [PlyCount "44"] [EventDate "2004.10.25"] [EventType "blitz"] 1. g4 d5 {A00 Irregular Openings} 2. Bh3 (2. e3 e5 3. d3 Nc6 4. Nd2 Be6 5. h4 Be7 6. h5 Qd7 7. f3 h6 8. Ne2 Nf6 9. Ng3 O-O-O 10. a3 e4 11. fxe4 Nxg4 12. Nb3 Qd6 13. Qf3 Nce5 14. Qg2 {1/2-1/2 (14) Rivas Pastor,M (2450)-Botsari,A (2309) Stockholm 2000}) 2... e5 3. Nf3 $146 (3. Bg2 Bxg4 4. Bxd5 Qxd5 5. h3 Qxh1 6. d3 Qxg1+ 7. Kd2 Qxd1+ 8. Kxd1 Bxh3 9. a4 Nc6 10. Ra3 Bxa3 11. bxa3 O-O-O 12. e4 Bg4+ 13. Kd2 h5 14. d4 Rxd4+ 15. Kc3 h4 16. f3 h3 17. fxg4 h2 {Vestena, L-Jeissmann,L Petropolis 2013 0-1}) 3... Bd6 4. d4 e4 5. Nh4 Qxh4 6. Bg2 Bxg4 7. Be3 Nf6 8. Nd2 {Black is clearly winning.} Bh5 9. Kf1 Ng4 10. f3 Nxe3+ 11. Kg1 Nxd1 12. Rxd1 exf3 {-22.09/21 Black didn't see the obvious variation...} ( 12... e3 13. Ne4 dxe4 14. Rf1) (12... e3 $142 {-#12/26} 13. Rf1 exd2 14. c3 Bf4 15. Bh3 Be3+ 16. Kg2 {[#]} d1=Q $1 17. Bd7+ Nxd7 18. Rxd1 Bxf3+ $1 19. exf3 Qf2+ 20. Kh3 Qxf3+ 21. Kh4 g5#) 13. Bxf3 Qg5+ 14. Bg2 O-O {-35.06/23} (14... Qe3+ $142 {-#3/20} 15. Kf1 Bxe2+ 16. Ke1 Bd3#) 15. Nf3 Bxf3 {Black mates.} 16. exf3 Re8 17. Rf1 Nc6 {Black had a much better move, but in blitz game he didn't have that much time to think. Even though Re2 is pretty obvious move, but maybe he only saw the reply Rf2, but not the continuation Qe3!! Which, of course, forces mate.} (17... Re2 18. Rf2 Qe3) 18. f4 Bxf4 19. Rxf4 Qxf4 20. Be4 Rxe4 21. h4 Qg3+ 22. Kf1 Re1# 0-1 [Event "Rated game, 2m + 0s"] [Site "Main Playing Hall"] [Date "2008.03.01"] [Round "?"] [White "Dan cooper"] [Black "Vierjoki, Timo"] [Result "1-0"] [ECO "A00"] [WhiteElo "1475"] [BlackElo "1574"] [Annotator "Tactical Analysis 2.10 (30s)"] [PlyCount "73"] [EventDate "2008.03.04"] [SourceTitle "playchess.com"] 1. g4 d5 {A00 Irregular Openings} 2. g5 c5 (2... c6 3. d4 g6 4. Nc3 Bg7 5. Nf3 Bf5 6. Nh4 Qb6 7. Nxf5 gxf5 8. e3 Nd7 9. Bd3 e6 10. Ne2 h6 11. g6 fxg6 12. Nf4 Nf8 13. Rg1 Ne7 14. a4 O-O-O 15. Nh5 Rg8 16. Nxg7 Rxg7 17. Bd2 {Williams,S (2545)-Swanson,S (2263) England 2010 1/2-1/2 (47)}) (2... e5 3. d3 h6 4. h4 hxg5 5. Bxg5 Be7 6. Nf3 Nc6 7. Bg2 Bg4 8. Nc3 f6 9. Bd2 Qd7 10. e4 dxe4 11. Nxe4 O-O-O 12. a3 Nd4 13. Be3 Nh6 14. Bxd4 exd4 15. Qd2 Qa4 16. b3 Qb5 17. Rg1 {Mazza,A-Perez Wertheim,R (1951) Buenos Aires 2016 0-1}) 3. c3 $146 (3. Bg2 Nc6 4. c3 e5 5. d3 Be7 6. Qd2 Be6 7. f4 exf4 8. Qxf4 Bd6 9. Qh4 Nge7 10. e4 Ng6 11. Qh5 Nce5 12. exd5 Bg4 {0-1 (12) Wang,Y-Song,J Chiva 1987}) 3... Nc6 4. a4 e5 5. Na3 Qxg5 6. d4 {[#]} Qd8 {-0.80/25} (6... Qe7 $1 $19 {-1.80/22} 7. dxe5 Nxe5) 7. dxe5 $17 Nxe5 8. Bf4 {Black is better.} Nc6 $2 {2.21/23} (8... Ng6 $17 { -1.23/30 stays on course.} 9. Bg3 a6) 9. Nb5 $18 Rb8 $2 {7.05/22} (9... Nf6 { 2.21/28} 10. Nc7+ Kd7 11. Nxa8 Bd6) 10. Bxb8 $2 {1.65/25 [#]} (10. Nc7+ { 7.05/22} Ke7 11. Nxd5+ Ke8 12. Nc7+ Ke7 13. Qc2) 10... Nxb8 11. Nxa7 Be7 { 2.55/25} (11... Be6 $16 {1.43/29} 12. Qb3 Qc7) 12. Nxc8 Qxc8 13. Bh3 {1.46/28} (13. Qxd5 $18 {2.53/25 Qe5 is the strong threat.} Nc6 14. Qg2) 13... Qd8 { 2.58/24} (13... Qc6 $16 {1.46/28 was necessary.} 14. Bg2 Nf6) 14. Qb3 Nf6 $2 { 4.16/22} (14... Qc7 {2.59/29} 15. Qxd5 Nf6) 15. Qxb7 O-O 16. O-O-O $2 {0.45/28} ({White should try} 16. a5 $18 {4.33/23}) 16... Nbd7 $2 {4.39/24} (16... Qd6 $1 $14 {0.45/28}) 17. Bxd7 Qxd7 18. Qxd7 Nxd7 19. Rxd5 Nf6 20. Rd1 Ra8 21. b3 g6 22. Nf3 Rb8 23. Kc2 Ne4 24. Rhf1 Bf6 25. c4 Nc3 26. Rd2 Ne4 27. Rd5 Kf8 28. Kd3 h5 29. Kxe4 Rxb3 30. Rxc5 Rb4 31. a5 Ra4 32. Rb1 Be7 33. Rc8+ {White mates.} Kg7 34. Rb7 Bf6 35. Rcc7 Kh6 36. Rxf7 Bc3 37. Rh7# {Accuracy: White = 50%, Black = 6%.} 1-0