Monday, November 9, 2009

Half of One Thing

J. Deepan Chakkravarthy – 侯逸凡 (Hóu Yìfán)
7th Asian Continental Chess Championship; Olongapo City, May 16, 2009
Queen’s Gambit Declined D38

1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Bb4 5. cxd5 exd5 6. Bg5 Nbd7 7. e3 c5 8. Qc2 0-0 9. Bd3 Qa5 10. 0-0 c4 11. Bf5 Re8 12. Nd2 g6 13. Bh3 Kg7 14. Bh4 Nb6 15. Bxc8 (15. Nb3 cxb3 16. axb3 Bxc3 17. Rxa5 Bxa5 18. Bxf6+ Kxf6 19. Qc5 Bxh3 20. gxh3 Bd2 21. Rd1 Bxe3 22. fxe3 Rxe3 23. Qc7 Kg7 24. Rf1 Rf8 25. Qxb7 Rxb3 26. Qxa7 Rxb2 27. Rf2 Rb1+ 28. Kg2 Nc4 29. Qe7 Rb3 30. Rf3 Rb2+ 31. Rf2 Rb6 32. Re2 Rf6 33. Rf2 Rd6 34. Kg3 Kg8 35. Rf6 Rxf6 36. Qxf6 Ne3 37. Qe5 Nf5+ 38. Kf2 Rd8 39. Kg1 h5 40. Kf2 Ng7 41. Qc7 Ne6 42. Qa5 Rc8 43. Qxd5 Rd8 0 : 1 Alekseev – Morozevich, 14th Russian Team Chess Championship, Sochi 2007) 15. ... Raxc8 16. Bxf6+ Kxf6 17. a3 Bxc3 18. bxc3 Na4 19. Rac1 Kg7. Black stands better already, intending ... Rc8-c6-b6-b2.


20. Rfe1!?TN (20. e4 dxe4 21. Nxe4 Rc6 22. f3 Nb6 23. Qb2 Re7 24. Nc5 Nd5 25. Nxb7 Qb6 0 : 1 Onischuk – Morozevich, 15th Russian Team Chess Championship, Dagomys 2008) 20. ... Rc6 21. e4 dxe4 22. Rxe4 (22. Nxe4 Rce6−+) 22. ... Rxe4 23. Nxe4 Re6 24. h4. 24. f3 Nb6 is quite similar to the game. 24. ... Re7 25. Ng3 Nb6 26. Qd2 h6! 26. ... Qxa3? 27. Qg5 would make White happy. 27. Qa2? After this Black has no difficulty in consolidating her advantage. Instead 27. Re1! Qxa3 28. h5 was not yet clear at all. 27. ... h5 28. Qd2 Qxa3 29. Qg5 Kh7 30. Rd1? (30. Rb1 Qd6∓) 30. ... Qd6 31. d5? Re5−+ 0 : 1.