Monday, June 28, 2021

11(十一)

侯逸凡 (Hóu Yìfán) – Santosh Gujrathi Vidit
1st Champions Chess Tour; 7th stage; Goldmoney Asian Rapid; Prelims Tournament; time control: 15 minutes plus 10 seconds per move; chess24.com, June 28, 2021
Sicilian Defence B33

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 d6 7. Bf4 e5 8. Bg5 a6 9. Na3 b5 10. Nd5 Be7 11. Bxf6 Bxf6 12. c4 b4 13. Nc2 0-0 14. Be2 a5 15. 0-0 Bg5 16. Bg4 Be6 17. h3 g6 18. Bxe6 fxe6 19. Nde3 Kg7!?TN (19. ... Qc7 19. Qd3 Nd8 20. a3 Bxe3 21. Nxe3 bxa3 22. Qxa3 Rb8 23. Qxa5 Qxa5 24. Rxa5 Rxb2 25. Rb5 Rxb5 26. cxb5 Nb7 27. Ra1 Nc5 28. f3 Rb8 29. Nc4 d5 30. exd5 exd5 31. Nxe5 Rxb5 32. Ra7 d4 33. Nd7 Nxd7 ½ : ½ Álvarez Abejón – Cabañas Jiménez, Semifinal A of the Madrid Individual Championship 2009–10, Madrid 2010)
20. Qd3 Rb8 21. Rad1 Be7


22. c5!? 侯逸凡 (Hóu Yìfán) gives up a Pawn to gain some scope for her pieces, as 22. b3 Qb6 would give Black an easy equality.
22. ... dxc5 23. Qb3. 23. Qd7 deserved consideration here, and if 23. ... Qc8 then 24. Qxc8 Rfxc8 25. Rd7 followed by Ne3-c4.
23. ... Qc8 24. Nc4 Qa6 25. Rd7 (Δ Nc4xe5)
25. ... Rbd8 26. Nxe5 c4 27. Qe3? After this, Vidit definitely gets the upper hand. White ought to play 27. Qg3 Rxd7 28. Nxd7 Rd8 29. Qc7.
27. ... Rxd7 28. Nxd7 Rd8 29. Nc5 Qc8 30. Na4 Qc7 31. Qe2 Ne5 32. Rd1 Nd3 33. Ne3 Bh4 34. Rf1 Qc6 35. Qg4 Bf6 36. b3 c3 37. Qe2 Qxe4 38. Nb6 Bh4 39. Nbc4 a4 40. g3 Bg5 41. h4 Bxe3 42. fxe3 Rd5 43. Kh2 Ne5 44. Rf4 Qb1 45. e4 Rd1 46. Qf2 g5? A dramatic mistake that provides 侯逸凡 (Hóu Yìfán) with an unhoped opportunity for escape. Simply 46. ... Nd7!−+ would have left White with no resource.


47. Qa7+? But she misses it, too! That is, 47. Nxe5! gxf4 (or 47. ... Rd2 48. Rf7+ with perpetual check) 48. Qa7+ Kf6 49. Ng4+ drawing by perpetual check.
47. ... Rd7 48. Qc5 Qc2+ 49. Kh3 g4+ 50. Rxg4+ Nxg4 51. Qg5+ Kf8 52. Qf4+ Rf7 53. Qxg4 Qd3 54. Qg5 Qf1+ 55. Kg4 Rg7 0 : 1.

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