Author: Drexel,Michael
Date: 04:46:38 01/04/03
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On January 03, 2003 at 22:16:29, Geo Disher wrote: >I wonder if anyone has looked at this problem recently with current hardware. >So far with Fritz8 black has won every game after 19 … Qh3 vs the Rg4 that you >mention. I am using a 2.4ghz machine and ran the position for about 10 hours to >come up with 19 … Qh3. Has that move been looked at extensively and if so do >you know the reply to Qh3. I just find it hard in this type of tactical >position for Fritz to be this far off. [D] 1r2k1r1/pbppnp1p/1bn2P2/7q/Q7/B1PB1N2/P4PPP/3RR1K1 b - - 0 19 I had discovered the possible defence 19...Qh3 20.Bf1 Qf5 long ago. probably many others too. either white is able to win this or has to force draw by perpetual check. 17.Nf6+ was a mistake. Kasparov: 17.Ng3 Qh6 18.Bc1 Qe6 19.Bc4 (19.Ng5 Qd5 20.Bc4 Qa5 21.Bxf7+) 19...Nd5 (19...Qg6 20.Nh4 Qg4 21.Bxf7+) 20.Ng5 Qg4 21.Re4 would finish the game without any troubles, but then chess would have lost one of the jewels from it's crown! a)19...Qh3 20.Bf1 Qf5 21.Kh1 Qxf6 [21...Rg4 22.Qb5 Qxb5 23.Bxb5±; 21...Bxf2 22.Re2 Bb6 (22...Rg4 23.c4 (23.Qxc6 Bxc6 24.Rxe7+ Kd8 25.Ne5!) 23...Qxf6 24.Bxe7 (24.Rxe7+ Nxe7 25.Qxd7+ Kf8 26.Qxg4 Bxf3 27.Qxf3 Qxf3 28.gxf3 +=) 24...Qxf3 25.Bc5+ Qxe2 26.Bxe2 Rxg2 27.Kxg2 Bxc5 28.Kf1±; 22...Qxf6 23.Bxe7 (23.Rxf2 d6 unclear) 23...Qxf3 (23...Nxe7 24.Qxd7+ Kf8 25.Rxf2±) 24.Bh4+ Be3 (24...Qxe2 25.Bxe2 Ne5 26.Bf3±) 25.Rde1 Kf8 26.Rxe3 unclear) 23.Rde1 Qxf6 (23...Qxf3 24.Rxe7+ Kd8 25.Re8+ Rxe8 26.Rxe8+ Kxe8 27.gxf3 Ne5 28.Bg2+-) 24.Rxe7+ Nxe7 25.Bxe7 Qxe7 26.Rxe7+ Kxe7 27.Qh4+ f6 (27...Ke8 28.Ne5 unclear) 28.Qxh7+ unclear/=] 22.Bxe7 Nxe7 23.Rxd7 Kf8 24.Rexe7 Qxf3 (24...Rg7? 25.Ne5 Qxe7 26.Rxe7 Kxe7 27.Qd7+ Kf8 28.f3±) 25.Rxf7+ Qxf7 26.Rxf7+ Kxf7 27.Qf4+ =; b)19...Rg4 20.Bc4 Kf8 [20...d6? 21.Rxe7+ Kf8 22.Rxd6+-; 20...Rxg2+ 21.Kxg2 Qg4+ 22.Kf1 Qh3+ 23.Ke2 Qf5 24.Bxe7 Nxe7 25.Qxd7+ Qxd7 26.Bxf7+ Kxf7 27.Ne5+±; 20...Qf5 21.Rd2 h5 (21...Rxg2+ 22.Kxg2 Ne5 23.Rxe5 Qxf3+ 24.Kf1 Qh1+ 25.Ke2+-; 21...Rxc4 22.Qxc4 Qxf6 23.Bxe7 Nxe7 24.Rde2+-) 22.Kf1 Rxc4 (c22...Rxg2 23.Kxg2 Ne5 24.Rxe5 Qxf3+ 25.Kf1 Qh1+ 26.Ke2+-; 22...Qxf6 23.Bxe7 Nxe7 24.Rxd7 Kf8 25.Rexe7 Bd5 26.Bxd5 Rxa4 27.Rxf7+ Qxf7 28.Rxf7+ Ke8 29.Ng5+-) 23.Qxc4 Qxf6 24.Bxe7 Nxe7 25.Rde2 Kf8 26.Rxe7 Bxf3 27.gxf3 Qxf3 28.Qh4±] 21.Rxe7 (21.fxe7+? Nxe7 22.Bxe7+ Kg7-+; 21.Rxd7? Ne5-+) 21...Nxe7 22.Bxe7+ Kg8 23.Bxf7+ Kh8 (23...Kxf7? 24.Qxg4 Qxg4 25.Ne5++-) 24.Bxh5 Rxa4 25.Be8!±
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