Wednesday, July 1, 2015

’Twas the Day Before Zoo Day

侯逸凡 (Hóu Yìfán) – Wesley So
43rd Sparkassen Chess Meeting; Dortmund, July 1, 2015
Caro-Kann Defence B19

Notes by Grandmaster Alejandro Tadeo Ramírez Álvarez, ChessBase.com, July 1, 2015.

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bd2 Ngf6 12. 0-0-0 Be7 13. Kb1 Qb6 14. Ne4 Rd8 15. c4 0-0 16. Qe2 c5 17. Bc3 cxd4 18. Bxd4 Qc6 19. Nxf6+ Bxf6 20. g4 Bxd4 21. Nxd4 Qc5 22. Nf3 Nf6 23. Ne5 Rd4 24. Rxd4 Qxd4 25. Rd1 Qf4 26. Re1 Qd4 27. Rd1 Qf4 28. f3. White has a bit of pressure in the position. She has a powerful Knight on e5 and control over the d-file, for this reason she declines the draw. It is not so fun to make moves for Black, despite the well placed Queen on f4. 28. ... a6 29. a3 Ra8. A mysterious Rook move like no other, but I suppose it is Wesley’s way to pass. 30. Rd6 Re8


31. Ka2?! It is fair to say that finding a way to continue was already something that was not easy, but this gives So a surprising resource to push back all of White’s control. 31. Rb6⩲ White is a bit better, but breaking through is another matter entirely. 31. ... Nxg4! Nicely calculated. So gets rid of the pressure completely. 32. fxg4 f6. The pin on the f4-d6 diagonal means that White must give her material back. 33. Rd7 fxe5 34. Rxb7. It seems that White is better, but in fact Black’s activity is just enough.


34. ... Qd4?! 34. ... Rc8! was much better, avoiding the following complications. 35. g5?! 35. Qc2! Qxg4 (35. ... Rc8 36. g5 hxg5 37. h6 Qxc4+ 38. Qxc4 Rxc4 39. Rxg7+ Kh8 40. Rxg5 looks like a difficult endgame for Black; 35. ... e4! is best, but not easy to find: 36. Qa4! Rc8 37. Qxa6 Qxc4+ 38. Qxc4 Rxc4 39. Re7 Rc6 the endgame is unclear to me, but White is the one pressing for a win) 36. Qa4⩲. 35. ... hxg5! This is forced, and safe. 36. h6 gxh6 37. Qh5. 37. Qc2 e4 is insufficient. 37. ... Qxc4+. Now the game finishes in a draw. Black is getting mated, but he has a perpetual. 38. Ka1. 38. Kb1?? Qe4+ 39. Ka2 Rf8 allows Black to cover everything (39. ... Qxb7!−+ is also good). 38. ... Qc1+ 39. Ka2 Qc4+ 40. Ka1 Qc1+ ½ : ½.

A long-lasting initiative may not be enough to win the day. Photo: Dagobert Kohlmeyer.

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