侯逸凡 (Hóu Yìfán) – 居文君 (Jū Wénjūn)
Lopota, June 25, 2014
Sicilian Defence B20
Lopota, June 25, 2014
Sicilian Defence B20
1. e4 c5 2. Ne2. As they say, quibbling over doctrinal minutiae. 2. ... Nf6 3. Nbc3 d5 4. exd5 Nxd5 5. g3. For 5. Nxd5 see Karpov – Quinteros, Mar del Plata 1982. 5. ... Nxc3. More accurate possibly is 5. ... Bg4 6. Bg2 Nxc3 7. bxc3 Nc6 with about even prospects, R. Byrne – G. Kramer, New York 1961. 6. Nxc3 Bd7 7. d4. For 7. Bg2 Bc6 see van Benthem – Perez Garcia, Haarlem 2001. 7. ... cxd4 8. Qxd4 Nc6 9. Qe4 f5. Compromising. Black’s best course is probably 9. ... g6 10. Bg2 Bg7. 10. Qc4 Ne5. The corollary to her previous move, but in my opinion 10. ... Qa5 11. Bg2 e5 would have been worth considering. 11. Qd5. A neat and far-seeing Exchange sacrifice. As a compensation, White wishes to render her development’s advantage more effective, whilst preserving the “two Bishops”. 11. ... Bc6? An error of judgment. Best under the circumstances was perhaps 11. ... Nc6 12. Bg2 e6. 12. Qxe5 Bxh1
13. Be2! “A bit feeble”, says Money Mouse, “13. Nb5! was the move, and after 13. ... Rc8 14. Nxa7 White stands very much better”. Needless to say, I do not agree at all. 13. ... Qd6. To parry the threat of Be2-h5+. 14. Qxd6! exd6 15. f3! A move of paramount importance. 15. ... d5 16. Be3! Far from 16. Nxd5? 0-0-0 17. c4 Bc5 etc. 16. ... d4 17. Bxd4 0-0-0 18. Bxa7. The threat is Ke1-f2 trapping the Bishop. 18. ... Bg2 19. Kf2 Bh3 20. Bd3 f4 21. g4 g6 22. Ne2 h5 23. Nxf4. Less convincing is 23. Bd4 hxg4 24. Bxh8 Bc5+ etc. 23. ... hxg4 24. Nxg6 Rg8 25. Nf4 Rd6 26. Be3 Be7 27. Bf5+ Kd8 28. Nxh3 gxh3 29. Bxh3. Cashing in. The endgame is far better for White and Miss 侯逸凡 (Hóu Yìfán) – as usual – displays her excellent technique. 29. ... Bh4+ 30. Ke2 Bf6 31. c3 Rh8
32. Bf4 Rb6 33. Rd1+ Ke7 34. Rd7+ Ke8 35. Bg4 Rxb2+ 36. Kd3 Rg8 37. Rc7 Rh8
38. a4 Rb6 39. Bd7+ Kd8 40. Bb5 Rh3 41. Rd7+ Kc8 42. Ke4 Rh4 43. Rf7 Kd8
44. Kf5 Be7 45. Be5 Rh5+ 46. Ke4 Rg6 47. f4 Rxh2 48. f5 Re2+. A gross blunder, but in any case Black was doomed. 49. Bxe2 1 : 0.
侯逸凡 (Hóu Yìfán)
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