bragesjo wrote on 09/10/06 at 10:58:46:
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3
g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. O-O-O d5 10. exd5 Nxd5 11. Nxc6 bxc6 12.
Bd4 Nxc3 13. Qxc3 Bh6+ 14. Be3 Bxe3+ 15. Qxe3 Qb6 16. Qxe7 Be6 17. Qa3 Rad8 18.
Bd3 Rd5 19. Rhe1 Ra5 20. Qc3 Rxa2 21. b3 Ra5 22. Kb2 {Golubev and Rogozenko
thinks that white has the better endning, no more mores are given.} Rb8 {
then the thematical} 23. Rxe6 fxe6 24. Bc4 Rd5 25. Qe1 Kf7 26. Bxd5 cxd5 27.
Qe5 {Fritz thinks the position is 0.00 but that is Fritz} Rc8 28. Rd4
Position after 22. Kb2.
http://www.france-echecs.com/diagramme/imgboard.phpfen=5rk1/p4p1p/1qp1b1p1/r7/8/... In your line, after 22... Rb8 23.Rxe6 fxe6 24. Bc4 Rd5 25.Qe1,
25... Rxd1 seems to draw on the spot. Instead I think white can get some edge with either
25.Bxd5 cxd5 26.h4 or
25.Re1 Re8 26.Bxd5 (26.Re4) 26... cxd5 27.h4 Qf2 28. Ra1.
Even better, instead of 24.Bc4, may be
24.Bxg6 Qc7 (24... Rd5 25.Bd3) 25.Be4 c5 26. Rd5 {better than 26.Qf6 which draws in the end when white loses the queenside pawns} 26... Qg7 (26... h6 27.Re5 Qg7 28.Bd3) 27.Qxg7 (27.Re5) 27... Kxg7 28.Rg5.
parisestmagique wrote on 09/11/06 at 10:14:20:
Yes, it's not easy, Black has to be careful with this threat to sacrifice on e6. Maybe after 22.Kb2 Rc5 holds after 23.Qf6 Bd5 24.Rd2 Ra5 25.Rde2 Be6 26.RxBe6 fxR 27.Qxe6+ Kh8.
I suspect white can get an edge with instead
24.Be4 or
24.Re2.
In general, I think black has three long term thematic problems in the position after 22.Kb2: The weak pawn on the a-file, the risk of Rxe6 when good, and white kingside expansion with h4-h5, inducing an extra weakness in black's camp. The question is if white can suppress black's counterplay against the white king to take advantage of this in the long term, and avoid exhanges that makes the position drawish.
I think the right way for black to go is placing the a5 rook on d5, which kind of forces matters. Question is if 22... Rc5 23.Qf6 should be inserted. My analysis suggest that 22...Rd5 is OK, but 22... Rc5 should also suffer:
22... Rc5 23.Qf6
Rd5 {instead of 23... Bd5} 24.Rxe6 (24.h4 c5 {may be a tiny bit better for white}) 24... fxe6 25.Qxe6+ Kh8 26.Bc4 Ra5 27.f4 Qc5 28.g4 g5 29.Rd7 gxf4 30.Rxh7+ Kxh7 31.Bd3+ Rf5 32.Bxf5+ Kg7, and anything but a draw seems unlikely.