A00 Irregular Openings (1.Nc3 d5 2.e4 d4 3.Nce2 e5 4.Ng3 c5 5.Nf3 Nc6)

[Event "Rated game, 5m + 0s"] [Site "Main Playing Hall"] [Date "2006.08.13"] [Round "?"] [White "Shoshin1"] [Black "Vierjoki, Timo"] [Result "1-0"] [ECO "A00"] [WhiteElo "1634"] [BlackElo "1702"] [Annotator "Tactical Analysis 2.10 (30s)"] [PlyCount "109"] [EventDate "2006.10.09"] [SourceTitle "playchess.com"] 1. Nc3 d5 2. e4 d4 3. Nce2 e5 4. Ng3 c5 5. Nf3 Nc6 {0.59/25 A00 Irregular Openings} (5... Bd6 $11 {-0.26/27}) 6. Bc4 {-0.32/26} (6. Bb5 $14 {0.59/25}) 6... Be7 {0.49/25} (6... Bd6 $15 {-0.32/26}) 7. O-O {-0.67/25} (7. Bd5 $14 { 0.49/25}) 7... Nf6 {0.59/23} (7... h5 $1 $15 {-0.67/25}) 8. d3 $14 {White is slightly better.} O-O {0.54/24} (8... Qc7 $11 {0.04/26}) (8... a6 9. a4 O-O 10. Bd2 Ne8 11. a5 Bg4 12. h3 Bxf3 13. Qxf3 Bg5 14. Be1 g6 15. Ne2 Ng7 16. g3 Kh8 17. Qg2 f5 18. f4 Bf6 19. Bd2 Qd7 20. Rae1 Rae8 21. fxe5 Bxe5 22. Nf4 Bc7 23. exf5 {Demidov,M (2512)-Davydov,S (2252) Kazan 2014 1-0 (41)}) 9. Bg5 {-0.47/24} (9. Bb5 $14 {0.54/24}) 9... Bg4 {0.26/23} ({Black should try} 9... h6 $15 { -0.47/24} 10. Bd2 Be6) 10. h3 Bd7 {0.77/22} (10... Be6 $11 {-0.12/28}) 11. Nh4 $146 {-0.46/28} (11. c3 $16 {0.77/22}) (11. a3 h6 12. Bd2 a6 13. Re1 b5 14. Ba2 Qc7 15. Qc1 Qd6 16. Nh4 Nh7 17. Nhf5 Bxf5 18. Nxf5 Qf6 19. f4 h5 20. Rf1 g6 21. fxe5 Qxe5 22. Nh6+ Kg7 23. Nxf7 Rxf7 24. Rxf7+ Kh8 25. Bf4 Qg7 {Sanjose Torres, C (2023)-Leon Fernandez,M Zaragoza 2003 1-0 (33)}) 11... h6 {0.57/25} (11... Ne8 $15 {-0.46/28} 12. Bxe7 Qxe7) 12. Bxf6 {-0.58/24} (12. Bd2 $14 {0.57/25}) 12... Bxf6 $15 13. Nhf5 {-1.17/21} (13. Nf3 $11 {-0.18/25}) 13... a6 {0.00/27} (13... Bg5 $17 {-1.17/21} 14. Qg4 Kh7) 14. Qg4 {-0.92/25 [#]} (14. Nh5 $1 $11 { 0.00/27 remains equal.}) 14... Kh7 $1 $17 15. Qh5 $2 {-2.58/25} (15. Nh5 $1 $15 {-0.34/28}) 15... Be6 {-1.51/27} (15... Bg5 $19 {-2.58/25} 16. Bxf7 Qf6) 16. f4 $2 {-3.62/24} (16. Ne2 $17 {-1.51/27}) 16... Bxc4 {-1.99/28} (16... exf4 $142 { -3.62/24} 17. Ne2 Bxc4 18. dxc4 Bg5) 17. dxc4 $19 Ne7 $2 {0.10/28} (17... exf4 $19 {-2.84/23} 18. e5 Bxe5) 18. fxe5 $1 $11 Bxe5 $2 {3.39/23} (18... Bg5 $11 { 0.00/29 and Black is okay.}) 19. Nxh6 $1 $18 gxh6 20. Qxe5 {Nh5 is the strong threat.} Ng6 21. Qh5 $40 {White attacks with force.} Qg5 22. Qxg5 hxg5 23. Nf5 $2 {0.60/27} ({Better is} 23. Rf5 $18 {2.79/21}) 23... Rfe8 $2 {3.36/22} (23... Rad8 $14 {0.60/27}) 24. Rae1 $2 {0.31/28} (24. Nd6 $18 {3.36/22}) 24... Re5 $2 {3.50/22} (24... Rad8 $14 {0.31/28}) 25. Nd6 Nf4 {5.37/24} (25... Re7 {3.37/29 was called for.} 26. Rxf7+ Rxf7) 26. Nxf7 Re7 27. Nxg5+ Kg6 28. Rxf4 {And now Rg4 would win.} Kxg5 {Endgame KRR-KRR} 29. Rg4+ Kf6 30. Rf1+ Ke6 31. Rg6+ Kd7 32. g4 Rxe4 {6.23/26} (32... b5 $142 {4.32/28} 33. Rf5 Rxe4 34. Rd5+ Ke7 35. Rxc5 Kf7) 33. Rf7+ Re7 34. Rxe7+ Kxe7 {KR-KR} 35. Rg7+ Kf6 36. Rxb7 Re8 37. Kf2 Re3 38. h4 Re4 39. Rb6+ Kg7 40. Kf3 Re3+ 41. Kf4 Re2 42. Kg5 Re5+ 43. Kf4 Re2 44. Rxa6 Rxc2 45. Kg5 Rxb2 46. Ra7+ Kf8 47. Kf6 {6.54/30} (47. h5 $142 { 14.15/29} Rb8 48. h6) 47... Ke8 48. h5 Rf2+ 49. Kg6 d3 50. h6 $4 {-19.80/25} ( 50. Rb7 $18 {9.28/31}) 50... d2 $19 51. h7 d1=Q $4 {#3/29 [#]} (51... Rh2 $19 { -18.11/27} 52. Ra8+ Ke7) 52. h8=Q+ {White mates.} Rf8 53. Qe5+ Kd8 54. Qc7+ Ke8 55. Qe7# {Accuracy: White = 27%, Black = 10%.} 1-0