Wednesday, November 10, 2010

Staircase

侯逸凡 (Hóu Yìfán) – Lê Thanh Tú
6th “雅戈尔杯” “Youngor Cup” Chinese Chess League; 杭州 (Hángzhōu), October 15, 2010
Caro-Kann Defence B19

1. e4 c6 2. d4 d5 3. Nc3 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 0-0 14. Ne4 c5 15. g4 Nxg4 16. Qe2 Qb6 17. Ne5


17. ... Ngxe5? A grave mistake which enables White to carry on a mating attack thru the open g-file. Correct was 17. ... Ndxe5 18. dxe5 f5! (18. ... Nxe5? transposes to the game).
18. dxe5 (Δ Bd2xh6)
18. ... Nxe5 19. Rhg1 Kh8. No better is 19. ... Rfd8 20. Bxh6 Qa6 21. Rxd8+ Rxd8 22. Qe1 Nf3 23. Qc3 e5 24. Rxg7+ Kh8 25. Qxf3 Qf1+ 26. Bc1 Kxg7 27. h6+ Kf8 28. h7 Kg7 29. Ng3 Qd1 30. Nh5+ Kh8 31. Qxf7 1 : 0 Negi – del Rio de Angelis, 66th Lliga Catalana d’Escacs, Montcada i Reixac 2009. 20. Bc3 f6 21. f4 Nc6 (21. ... Nf7 22. Qg4+−)


22. Rxg7! Rad8 (22. ... Kxg7 23. Qg4+ Kh8 24. Qg6+−)
23. Rdg1 Nd4 24. Bxd4 cxd4 25. Qg4 Ba3 26. Rh7+! 1 : 0.