
|
Stellwagen (2631) - Khalifman (2632)
NH Chess Tournament 2007/Amsterdam (6) 28.08.07
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5.
Normally they play 14... Rd8 in this position. Some top level examples: 15. Qe2 (15. Qb1 Nd7 16. Qa2 Rb5 17. c3 d5 18. exd5 Bxd5 Stellwagen-Onischuk, Wijk aan Zee 2005)
15... Bf8 16. Nfd2 (16. Red1 Ne7 17. Nfd2 Ng6 18. d4 exd4 19. Bxd4 Nh7 20. Be3 d5 21. exd5 1/2-1/2, Anand-Shirov, Monte Carlo blind 2004)
16... Ne7 (16... Qb7 17. Qf3 Kh7 18. Nf1 Ne7 19. Ng3 Ng6 20. Nh5 1/2-1/2, Svidler-Aronian, Morelia/Linares 2006)
17. d4 Ng6 18. d5 Bd7 19. Ba4 (19. Rec1 Re8 20. c3 Nf4 21. Qd1 Qd8 22. Ba4 Qe7 23. b3 g6 24. Nb2 Rec8 25. Bxd7 Qxd7 26. c4 Qe8 27. Qf1 1/2-1/2, Karjakin-Aronian, Wijk aan Zee 2006)
19... Bb5 20. b3 Be7 21. Rec1 c6 22. Bxb5 Rxb5 23. Nb6 Qb7 24. dxc6 Qxc6 25. Qc4 1/2-1/2, Adams-Anand, San Luis 2005
In a very recent game Black also tried something new: 14... Nh7!? 15. d4 exd4 16. Nxd4 Nxd4 17. Bxd4 Rb5 18. f4 Bf6 19. f5 Bxc4 20. Bxc4 Bxd4+ 21. Qxd4 Re5 Hou Yifan-Harikrishna, Paks 2007
15. Nfd2 Bf8 16. Qf3 Kh7 17. Rad1 Qb7 18. Qg3 Nh5 19. Qh4 White probably should have been content with a draw after 19. Qf3 Nf6
19... g6 20. f3 According to Khalifman, White's problems started with his last two moves. OK, it's dangerous what Stellwagen is doing here, but of course the big mistake comes later.
20... Bg7 21. Ba4 Rf8 Here Khalifman already saw the deep tactical trick that follows.
22. c3 Na7 23. d4? Black is already better of course but this looses material.
White can fight with 23. Qf2 Nb5 (23... bxc3 24. Bxa7 cxd2 25. Rxd2 Rbd8
)
24. cxb4 Nd4 25. Bxd4 exd4 26. f4 Qxb4 27. b3
23... bxc3 24. bxc3 exd4 25. Rb1 This is what White had counted on but it fails to a surprising answer.
25. cxd4 Bxc4 26. Nxc4 Qb4
or 25. Bxd4 Bxd4+ 26. cxd4 Bxc4 27. Nxc4 Qb4 and White loses a piece.
25... Bf6!! Now White is lost in all lines!
26. Rxb7 On the tournament website, Dirk Jan ten Geuzendam writes that 26. Qxf6 dxe3! wins a piece for Black but this is not correct: 27. Rxb7 exd2 28. Nxd2 Nxf6 29. Rxa7
No, after 26. Qxf6 the answer is of course 26... Qxb1! winning material.
26... Bxh4 27. Rxb8 After 27. Rxa7 the easiest is 27... dxe3! (27... Bxe1 is worse according to Ten Geuzendam but actually Black still wins a piece: 28. Bxd4 (28. cxd4 Bxc4 29. Nxc4 Rb4)
28... Bxc4 29. Nxc4 Rb1! 30. Bf2 (30. Kf1 Ng3+)
30... Bxc3+ 31. Kh2 Rb4)
28. Rxe3 Bxc4 because 29. Nxc4 is mate in 4.
27... Rxb8 28. Bxd4 Bxe1 29. Bxa7 White managed to limit his material losses to an exchange but Black can immediately exchange many pieces and liquidate to a completely winning endgame.
29... Bxc4 30. Nxc4 Rb1 31. g4 Bxc3+ 32. Kf2 Rb4 0-1