1 Feb 2020

A04 Unusual lines after 1.Nf3 and King's Indian Attack (1.c4 c5 2.Nc3 g6 3.Nf3 Bg7 4.d4 cxd4 5.Nxd4 Nc6 6.Nxc6 bxc6 7.g3 Nf6 8.Bg2 O-O 9.O-O)

A04 Unusual lines after 1.Nf3 and King's Indian Attack (1.c4 c5 2.Nc3 g6 3.Nf3 Bg7 4.d4 cxd4 5.Nxd4 Nc6 6.Nxc6 bxc6 7.g3 Nf6 8.Bg2 O-O 9.O-O)
[Event "ICC 5 0"] [Site "Internet Chess Club"] [Date "2011.06.12"] [Round "?"] [White "asilbar"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "A04"] [WhiteElo "1458"] [BlackElo "1556"] [Annotator "Tactical Analysis 2.10 (30s), TV"] [PlyCount "72"] [EventDate "2011.??.??"] 1. c4 c5 2. Nc3 {A34 English Opening: Symmetrical Variation, Normal Variation} g6 3. Nf3 Bg7 4. d4 cxd4 5. Nxd4 Nc6 6. Nxc6 bxc6 7. g3 Nf6 8. Bg2 O-O 9. O-O { 0.03/29 A04 Unusual lines after 1.Nf3 and King's Indian Attack} (9. Qa4 $14 { 0.55/23}) 9... d5 $146 (9... Bb7 10. Bf4 (10. Be3 d6 11. h3 Qc7 12. b4 a5 13. Rb1 axb4 14. Rxb4 Rfb8 15. Qb3 Bc8 16. Bb6 Qd7 17. Rd1 Ba6 18. a4 Qc8 19. a5 c5 20. Ra4 Bb7 21. Rb1 Bxg2 22. Kxg2 e6 23. Nb5 Nd7 24. Rd1 Bf8 {Clemens,C-Parma, B Bamberg 1962 0-1 (53)}) 10... d6 11. Qd2 Qd7 12. Rad1 c5 13. e4 Ng4 14. b3 Rad8 15. h3 Ne5 16. Be3 Qe6 17. f4 Nc6 18. Nd5 Bd4 19. Kh2 Bxe3 20. Qxe3 f6 21. e5 Kh8 22. Nc7 Qd7 23. exd6 exd6 24. Nb5 {Smyslov,V-Shamkovich,L Baku 1961 1-0 (41)}) (9... Qb6 10. Be3 Qxb2 11. Nb5 Qb4 12. Rb1 Qa5 13. Qe1 Qxe1 14. Rfxe1 Ne8 15. Nxa7 Nd6 16. Nxc8 Rfxc8 17. c5 Nf5 18. Rb7 Nxe3 19. fxe3 Bh6 20. Kf2 Ra3 21. Rb3 Rxa2 22. Rd1 Ra7 23. Rbd3 Rcc7 24. Rb1 {Posa,N (2240)-Dvoirys,S (2560) Budapest 1991 0-1 (44)}) (9... Qa5 10. Bd2 (10. Qc2 Qh5 11. Bf4 d6 12. Bxc6 Bf5 13. e4 Bh3 14. f3 Qc5+ {0-1 (14) Beni,A-Ree,H Beverwijk 1966}) 10... Qh5 11. b3 Bb7 12. e3 Rfd8 13. Qxh5 Nxh5 14. Rad1 d5 15. cxd5 cxd5 16. Na4 Rac8 17. Rc1 Bc6 18. Ba5 Re8 19. Nc3 e6 20. Ne2 Bb2 21. Rc2 Ba3 22. Nd4 Bd7 23. Bh3 Nf6 24. b4 {Boecher,J-Linnenborn,G Bochum 1991 0-1 (55)}) 10. cxd5 cxd5 11. Nxd5 {0.09/28} (11. Be3 $14 {0.56/23}) 11... Rb8 {1.12/25} (11... Nxd5 $11 { 0.09/28 remains equal.} 12. Qxd5 (12. Bxd5 Rb8 $11) 12... Qxd5 13. Bxd5 Rb8) 12. Nc3 {0.56/27} (12. Nxf6+ $16 {1.12/25} Bxf6 13. Bh6) 12... Qb6 $2 {2.52/23} (12... Be6 $14 {0.56/27}) 13. b3 $2 {0.51/28} (13. Bf4 $18 {2.52/23}) 13... Ba6 {1.03/25} (13... Bb7 $14 {0.51/28} 14. Bxb7 Qxb7) 14. Be3 Qb4 {1.36/26} (14... Qe6 $142 {0.75/30}) 15. Rc1 Ng4 {1.92/24 [#]} (15... Rbc8 $16 {1.15/30 was called for.}) 16. Nd5 {0.74/27} (16. Bd2 $1 $18 {1.92/24 has better winning chances.}) 16... Qa3 $2 {4.24/26} (16... Nxe3 $16 {0.74/27 is more resistant.} 17. Nxb4 (17. fxe3 Qa3 $14) 17... Nxd1 18. Nxa6 Nc3) 17. Bc5 $18 Qxa2 18. Nxe7+ Kh8 19. Re1 {1.50/26} ({Weaker is} 19. Bxa7 Bxe2 20. Rc2 Bxd1 $14) (19. Rc2 $18 {3.50/25} Qxb3 20. Nc6 (20. Bxa7 Rbd8 $16)) 19... Rfd8 $16 20. Qc2 {0.90/27} ( 20. Bd5 $18 {2.27/23 and White stays clearly on top.}) 20... Qxb3 $2 {4.37/24} (20... Qxc2 $16 {0.90/27 is a better chance.} 21. Rxc2 Rxb3) 21. Qxb3 $2 { 1.01/27} (21. Nc6 $18 {4.37/24 is the precise move to win.} Qxc2 22. Rxc2) 21... Rxb3 22. h3 {0.91/25} (22. Bxa7 $142 {1.40/24} Rb2 23. Nc6) 22... Nf6 { 1.65/24} (22... Ne5 $16 {0.91/25}) 23. Be3 {0.67/29} (23. Bxa7 $18 {1.65/24} h5 24. e4) 23... Rb2 $14 24. Nc6 {0.57/28} (24. Bxa7 Rxe2 25. Bb6 Re8 $11) (24. Rc7 $16 {1.11/25}) 24... Rd7 {1.72/28} ({Black should try} 24... Re8 $14 { 0.57/28}) 25. Ne5 $18 ({Don't take} 25. Bxa7 $6 Rxe2 26. Be3 h5 $16) 25... Re7 26. Nc4 {0.29/26} (26. Nd3 $18 {1.61/24} Bxd3 27. exd3) 26... Rb4 $2 {3.83/23} (26... Ra2 $11 {0.29/26}) 27. Nd6 $2 {1.13/28} (27. Bc5 $18 {3.83/23 and the rest is easy.} Rxc4 28. Bxe7) 27... Rb2 {2.05/25} (27... Kg8 $16 {1.13/28}) 28. Nc8 $2 {0.40/31} ({White should play} 28. Rc6 $18 {2.05/25} Ra2 29. Rec1) 28... Rd7 {0.99/27} (28... Re6 $14 {0.40/31}) 29. Red1 Rxd1+ {1.08/29} ({Reject} 29... Bxe2 30. Rxd7 Nxd7 31. Nd6 $16) (29... Rc2 $14 {0.60/31 is superior.}) 30. Rxd1 $16 {Hoping for Rd8+.} h5 {1.90/27} (30... h6 $16 {1.00/27}) 31. Bf3 $2 {0.03/30} (31. Rd8+ $18 {1.90/27} Kh7 32. Nd6) 31... Bxe2 $11 32. Bxe2 Rxe2 33. Bxa7 Ne4 34. Rd8+ Kh7 35. Ne7 {-0.76/26 [#]} (35. Nd6 $11 {0.00/36}) 35... Bf6 {0.00/31} ({Better is} 35... Nxf2 $1 $17 {-0.76/26} 36. Bxf2 Rxe7) 36. Nd5 $2 {-8.42/26} (36. Rd7 $11 {0.00/31}) 36... Bxd8 {Accuracy: White = 16%, Black = 19%.} 0-1

No comments:

Post a Comment