宁凯玉 (Níng Kǎiyù) – 侯逸凡 (Hóu Yìfán)
17th Chinese Chess League Division A Regular-Rapid “武陵山大裂谷杯” (“Wǔlíng Mountain Great Rift Valley Cup”); time control: 25 minutes plus 10 seconds per move; 重庆 (Chóngqìng), September 7, 2022
Bogo-Indian Defence E11
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb4+ 5. Bd2 c5 6. Bxb4 cxb4 7. Bg2 Bb7 8. 0-0 0-0 9. Qd3. Or 9. a3 Qe7 and now:
1) 10. Nbd2 bxa3 11. bxa3 d6= Sachdev – 侯逸凡 (Hóu Yìfán), 16th Asian Games — Women’s Individual Rapid Chess, 广州 (Guǎngzhōu) 2010 (time control: 25 minutes plus 10 seconds per move);
2) 10. Qb3 Nc6 11. Nbd2 bxa3 12. Qxa3 Nb4 13. Rac1 Ne4 14. Nxe4 Bxe4 15. Ne5 Bxg2 16. Kxg2 a5 17. Nd3 Rfc8= 沈阳 (Shěn Yáng) – 侯逸凡 (Hóu Yìfán), 7th “天津弈诚杯” (“Tiānjīn Yìchéng Cup”) Chinese Chess League, 青岛 (Qīngdǎo) 2011.
9. ... d6 10. Nbd2 Qc7 11. e4 e5 12. Rfe1 a5 13. Rac1 Re8 14. h3 h6 (14. ... Na6 15. Nh4 g6 16. Rcd1 Rac8 17. b3 Qe7 18. Nf1 Nc7 19. Ne3 Ne6 20. dxe5 dxe5 21. Nd5 Bxd5 22. exd5 Nc5 23. Qd2 Qd6 24. Re3 Re7 25. Rde1 b5 26. Nf3 e4 27. Bf1 bxc4 28. bxc4 Nfd7 29. Nd4 Ne5 30. a3 Ncd3 31. Bxd3 Nxd3 32. Nc6 Nxe1 33. Nxe7+ Qxe7 34. Rxe1 Rxc4 35. d6 Qf6 36. Rd1 Rc8 37. axb4 axb4 38. d7 Rd8 39. Qxb4 e3 40. fxe3 Qf3 41. Qe1 h5 42. h4 Qg4 43. Rd4 Qh3 ½ : ½ Piket – Pr. Nikolić, 53rd Dutch Chess Championship, Rotterdam 1997)
15. Nf1 Nbd7 16. N3d2 exd4 17. Qxd4 Nc5 18. f3 Nfd7 19. Ne3 Ne6 20. Qd3 Nec5 21. Qd4 Ne6 22. Qd3 Ndc5 23. Qf1 Qd8 24. f4 Qf6
1) 10. Nbd2 bxa3 11. bxa3 d6= Sachdev – 侯逸凡 (Hóu Yìfán), 16th Asian Games — Women’s Individual Rapid Chess, 广州 (Guǎngzhōu) 2010 (time control: 25 minutes plus 10 seconds per move);
2) 10. Qb3 Nc6 11. Nbd2 bxa3 12. Qxa3 Nb4 13. Rac1 Ne4 14. Nxe4 Bxe4 15. Ne5 Bxg2 16. Kxg2 a5 17. Nd3 Rfc8= 沈阳 (Shěn Yáng) – 侯逸凡 (Hóu Yìfán), 7th “天津弈诚杯” (“Tiānjīn Yìchéng Cup”) Chinese Chess League, 青岛 (Qīngdǎo) 2011.
9. ... d6 10. Nbd2 Qc7 11. e4 e5 12. Rfe1 a5 13. Rac1 Re8 14. h3 h6 (14. ... Na6 15. Nh4 g6 16. Rcd1 Rac8 17. b3 Qe7 18. Nf1 Nc7 19. Ne3 Ne6 20. dxe5 dxe5 21. Nd5 Bxd5 22. exd5 Nc5 23. Qd2 Qd6 24. Re3 Re7 25. Rde1 b5 26. Nf3 e4 27. Bf1 bxc4 28. bxc4 Nfd7 29. Nd4 Ne5 30. a3 Ncd3 31. Bxd3 Nxd3 32. Nc6 Nxe1 33. Nxe7+ Qxe7 34. Rxe1 Rxc4 35. d6 Qf6 36. Rd1 Rc8 37. axb4 axb4 38. d7 Rd8 39. Qxb4 e3 40. fxe3 Qf3 41. Qe1 h5 42. h4 Qg4 43. Rd4 Qh3 ½ : ½ Piket – Pr. Nikolić, 53rd Dutch Chess Championship, Rotterdam 1997)
15. Nf1 Nbd7 16. N3d2 exd4 17. Qxd4 Nc5 18. f3 Nfd7 19. Ne3 Ne6 20. Qd3 Nec5 21. Qd4 Ne6 22. Qd3 Ndc5 23. Qf1 Qd8 24. f4 Qf6
Suddenly the game lights up and, given the time control, it is no wonder that what follows is studded with errors and omissions:
25. e5? (⌓ 25. Rb1)
25. ... dxe5? (⌓ 25. ... Bxg2)
26. Bxb7 Nxb7 27. Ne4 Qd8 28. f5? (28. Rcd1 Qb8 29. fxe5 Nec5! 30. Nf6+! gxf6 31. Ng4 Re6 32. Nxf6+ Rxf6 33. Qxf6 Qf8∞)
28. ... Nd4 29. f6 Nc5 30. Nd5 Re6 31. Rcd1 Ra7 32. Kh2 Rd7 33. fxg7 Kxg7 34. Nxc5 bxc5 35. Re4
25. e5? (⌓ 25. Rb1)
25. ... dxe5? (⌓ 25. ... Bxg2)
26. Bxb7 Nxb7 27. Ne4 Qd8 28. f5? (28. Rcd1 Qb8 29. fxe5 Nec5! 30. Nf6+! gxf6 31. Ng4 Re6 32. Nxf6+ Rxf6 33. Qxf6 Qf8∞)
28. ... Nd4 29. f6 Nc5 30. Nd5 Re6 31. Rcd1 Ra7 32. Kh2 Rd7 33. fxg7 Kxg7 34. Nxc5 bxc5 35. Re4
35. ... Rxd5! A crushing Exchange sacrifice which gives Black obvious winning chances.
36. cxd5 Qxd5 37. Qg2 Rg6 38. Rde1 Qc6 (⌓ 38. ... c4!)
39. Rf1 Qe6 40. Rfe1 Rg5 41. b3 Kh7 42. h4 Rf5 43. Rf1? (⌓ 43. Rf4!∞)
43. ... Rxf1 44. Qxf1 Qd5? Here, being quite exhausted, 侯逸凡 (Hóu Yìfán) contented herself with a draw. Were it necessary that she should win, she certainly would have preferred 44. ... a4! and continued to play for a win.
36. cxd5 Qxd5 37. Qg2 Rg6 38. Rde1 Qc6 (⌓ 38. ... c4!)
39. Rf1 Qe6 40. Rfe1 Rg5 41. b3 Kh7 42. h4 Rf5 43. Rf1? (⌓ 43. Rf4!∞)
43. ... Rxf1 44. Qxf1 Qd5? Here, being quite exhausted, 侯逸凡 (Hóu Yìfán) contented herself with a draw. Were it necessary that she should win, she certainly would have preferred 44. ... a4! and continued to play for a win.
45. Qf6! Qxe4 46. Qxf7+ Kh8 ½ : ½.
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