En Sabadell

Filemon Cruz - Amador

Societat Coral Colón Sabadell 2009

Nimzo India E46

a8 b8 c8 d8 e8 f8 g8 h8
a7 b7 c7 d7 e7 f7 g7 h7
a6 b6 c6 d6 e6 f6 g6 h6
a5 b5 c5 d5 e5 f5 g5 h5
a4 b4 c4 d4 e4 f4 g4 h4
a3 b3 c3 d3 e3 f3 g3 h3
a2 b2 c2 d2 e2 f2 g2 h2
a1 b1 c1 d1 e1 f1 g1 h1
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nge2 d5 6. a3 Be7 7. Nf4 c6 8. Bd3 Nbd7 9. cd5 Nd5 10. e4 Nf4 11. Bf4 e5 12. de5 Qc7 13. Rc1
 
[13. Bg3 Ne5 14. Be2 It seems that black has already equalized comfortably to me, and the players seemed to agree. But black must take care that white's eventual expansion with f4 does not cause some chaos in his ranks. However, since this proves to be surprisingly hard to solve, white's position may be better than it looks. 14... Bc5 (14... f5!? 15. Nd5!? Qd6 16. Ne7 Qe7 17. ef5 Bf5 18. Qb3 Kh8 19. O-O and white's bishop pair should grant him a slight advantage.) (14... Be6!? is the most determined attempt to put black's pieces where he wants them. Does the white center roll him away? 15. O-O (15. f4?! is the attempt at refutation, but it looks too risky: 15... Rad8 16. Qc2 Nc4 17. f5 Ne3 (17... Bh4!?) 18. Qc1 (18. Bc7 Nc2 19. Kf2 can only favor black.) 18... Qb6 19. fe6 fe6 20. Bf3 Bg5 and white's position is in ruins.) 15... Rad8 16. Qc2 leads to a double-edged position.) 15. O-O Qe7 16. Na4! This seems an odd place for the knight but perhaps white feared black's activity after the more natural (16. Qc2 f5. The strength of Petursson's sidestep to a4 becomes more evident as the game progresses, when one of black's greatest regrets is that he has had to use his f-rook on d8.) 16... Rd8 17. Qc2 Bd4 18. Rad1 b6 19. Nc3 Bb7 20. Kh1 c5 21. f4 Ng6 22. e5 Nh4 23. Bh4 Qh4 24. Bc4! 1-0 Petursson,M (2570)-Olafsson,H (2500)/Gausdal 1996/CBM 054 ext/[Tisdall] (40) A very annoying position for black. He has played terribly logically and sensibly, developing in the most active way. He has maintained a small initiative but white's only trump, the possibility of e5-e6, seems destined to swing the balance gently in his favor. Inferior were: (24. Nb5?! Be3) (24. Bf3?! Bf3 25. Rf3 Bc3 26. bc3 Rd1 27. Qd1 Rd8 with initiative to black.)]
 
13... Ne5 14. O-O
 
[14. Nd5 Nd3 (14... Qd6 15. Ne7 Qe7 16. Be2 White has a slight advantage) 15. Qd3 Qd8 16. Ne7 Qe7 17. Bd6 (17. Rd1 Be6 18. Bd6 Qg5) 17... Rd8 18. Rd1 Qg5 19. O-O Be6]
 
14... Qd6
 
[14... Qb8 15. Bb1 Be6 16. Qh5 Bd6 17. Bg3]
 
15. Qh5 Qd3
 
[15... g5 16. Be5 (16. Bg3 Bg4 17. Qg4 Ng4 18. Bd6 Bd6 19. h3) 16... Qe5 17. Ne2] [15... Bf6 16. Rfd1 Qe7 17. h3 (17. Be2 g6 18. Qh6 Be6) 17... Nd3 18. Rd3 Bc3]
 
16. Be5 Qd7
 
[16... Qd2 17. Rcd1 (17. f4 f6) 17... Qc2]
 
17. Rfd1 Qg4 18. Qg4 Bg4 19. f3 Be6 20. Bd6 Bd6 21. Rd6 Rfd8 22. Rcd1 Rd6 23. Rd6 Kf8 24. Kf2 Ke7 25. Rd2
 
White has a slight advantage
1/2-1/2