Thursday, March 14, 2013

觸技曲 (Toccata)

Olga Zimina – 侯逸凡 (Hóu Yìfán)
xv European Women’s Chess Club Cup; Plovdiv, October 19, 2010
French Defence C04

1. e4 e6 2. d4 d5 3. Nd2 Nc6. The Guimard Variation.
4. Ngf3 Nf6 5. e5 Nd7 6. Bb5. “This move is effective, if played under other circumstances; for example after 6. Nb3 Be7”, International Master Giorgio Porreca wrote in his book “La Difesa Francese”, Mursia, Milano, 1977–1984, p. 41.
6. ... a6! “In the game Jiménez – Suetin, Havana 1968, there followed 6. ... Ncb8?! 7. 0-0 Be7 8. Re1 b6 9. c3 Ba6 10. Ba4? Bd3! and Black unexpectedly developed his Queen’s bishop beyond the Pawn barrier!”. (Porreca, ibidem).
7. Bxc6 bxc6 8. Nb3. 8. 0-0 c5 9. c3 a5 10. Re1 Ba6 does not worry Black, Villarroel – Ivkov, International Tournament, Caracas 1970.
8. ... c5 9. Bg5 (9. Na5 c6! Δ 10. Nxc6? Qb6−+)
9. ... Be7 10. Na5 Nb8 11. Bxe7 Qxe7 12. c4! And not 12. dxc5? Qxc5 13. Qd2 0-0 14. 0-0 Nd7 15. b4?! Qb6 16. c4 dxc4 17. Rac1 Qb5! 18. Rfe1 Rb8 19. Rxc4 Bb7 20. Ng5? (20. Nd4 Qd5) 20. ... Nxe5⩱ 21. Rxc7 (21. Rc5 Qd3!) 21. ... Ba8 22. a3 Nd3! 23. Rd1 Rbd8 24. Rc3? Nf4!!−+ R. Cappello – Mednis, 16th New Year’s International Tournament, Reggio Emilia 1974. White should consider instead 12. c3 0-0 13. 0-0 c4 14. b4 cxb3 15. axb3 c5 16. Qc1!? Ra7 17. Qe3 Rc7 18. Rfc1⩲ Yemelin – Riazantsev, Saint Petersburg 1996.
12. ... 0-0 13. 0-0! A good novelty by Zimina! After 13. Qc2 cxd4 14. c5?! f6! Black is fine, Alemán Dovo – Guimard, Havana 1952.
13. ... Rd8 14. Rc1 dxc4 15. Rxc4 cxd4 16. Nxd4 Rd5 17. Qf3 Nd7 18. Nac6 Qf8 19. Nf5! White’s attack is vehement. 19. ... Kh8


20. Rh4!? With the flashy threat of 21. Rxh7+! Kxh7 22. Nce7! followed by mate in three. International Master Zoram Stamenković, however, recommends 20. Ne3! Rc5 21. Rd1 Bb7 (21. ... Rxc4 22. Nxc4+−) 22. Rxd7 Bxc6 23. Rxf7+− with winning advantage.
20. ... h6 21. Nb4? But that is Zimina’s mistake! Consistent was 21. Nce7! Nxe5 22. Qg3 (Δ 23. Nxh6 gxh6 24. Rxh6+ Qxh6 25. Qg8#) 22. ... exf5 23. Nxd5 with material and positional advantage.
21. ... Nxe5 22. Qe4 (22. Qh3 Rb5 24. Nxh6 Ng6 25. Nxf7++ Kg8−+)
22. ... Ng6 23. Rh3 c6 24. Nxd5? Disaster! 24. Nh4 was called for.
24. ... cxd5 25. Qd4 e5 26. Qg4 Ne7 27. Rh5 Bxf5 28. Rxf5 Qc8 0 : 1.

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