Author: Uri Blass
Date: 18:01:43 02/05/03
Go up one level in this thread
On February 05, 2003 at 20:50:11, Robert Hyatt wrote: >On February 05, 2003 at 20:23:50, Albert Silver wrote: > >>On February 05, 2003 at 18:36:52, Timothy J. Frohlick wrote: >> >>>Martin, >>> >>>I think that Kasparov saw a possible win but didn't think that it was worth the >>>effort to play another 50 to 100 moves. These games don't affect his rating or >>>standing in the "real" chess world. He would deny this whole proposition of >>>course. I think that he got fatigued and didn't want to risk a loss. >>> >>>TJF >> >>Fatigued at 1 game every 3 days? Allow me to express my doubts.... >> >> Albert > > >I think "weary" might be better. > >I watched this game, and the move g3 was _not_ hard to find. It appears to me >that he analyzed this carefully and said "if I play g3, I think it wins for >white, but the tactics are difficult and complex and I might well make yet >another mistake and turn a win into a loss. However, if I play Bxh7+, my >opponent will obviously see the instant perpetual and take it, letting me off >with a draw, without my having to offer a draw." > >Whether that happened or not is only speculation. But as a human, I would play >g3 without much thought as any non-checking move is instantly fatal, and the >checking move simply delays the decision for a move... I am not sure if g3 is winning. g3 Qh2 f5 h5 was one of the lines that were mentioned and Here is the analysis of Deep Fritz6 on p850(Fritz8 was not installed on this computer) The point is that if white is winning I expect the score of white to improve or at least not to go down when the program searches deeper and in this case the score goes down from +2 to +1.41. [D]rnb1r1k1/pp3pp1/2p5/3p1P1p/3P2n1/P1NBPKP1/1PQBN2q/R4R2 w - h6 0 1 Analysis by Deep Fritz: 18.Nxd5-- +- (2.22) Depth: 1/3 00:00:00 18.Nxd5-- cxd5 ³ (-0.37) Depth: 1/3 00:00:00 18.e4! ± (1.13) Depth: 1/4 00:00:00 18.e4! dxe4+ 19.Bxe4 +- (2.03) Depth: 1/4 00:00:00 18.e4 dxe4+ 19.Bxe4 Nd7 +- (1.94) Depth: 2/7 00:00:00 18.e4 dxe4+ 19.Bxe4 Nf6 20.Rh1 +- (1.91) Depth: 3/10 00:00:00 18.e4 dxe4+ 19.Bxe4 Nf6 20.Rh1 +- (1.91) Depth: 4/17 00:00:00 1kN 18.e4 dxe4+ 19.Bxe4 Nd7 20.Rae1 Ndf6 +- (1.94) Depth: 5/15 00:00:00 5kN 18.e4 dxe4+ 19.Bxe4 Nd7 20.Rae1 Ndf6 21.Bd3 +- (1.81) Depth: 6/20 00:00:00 16kN 18.Rac1! +- (1.84) Depth: 6/20 00:00:00 29kN 18.Rac1! Nd7 19.e4 dxe4+ 20.Nxe4 Ngf6 21.Rfe1 +- (1.88) Depth: 6/20 00:00:00 36kN 18.Rae1! +- (1.91) Depth: 6/20 00:00:00 55kN 18.Rae1! Nd7 19.e4 dxe4+ 20.Nxe4 Ngf6 21.Nd6 +- (2.03) Depth: 6/20 00:00:00 61kN 18.Rae1 Nd7 19.e4 Nb6 20.Bg5 dxe4+ 21.Bxe4 Bd7 +- (2.19) Depth: 7/26 00:00:00 163kN 18.Rae1 Nd7 19.e4 Nb6 20.Bg5 dxe4+ 21.Bxe4 Nc4 22.Bf4 +- (2.19) Depth: 8/31 00:00:00 322kN 18.Rae1 Nd7 19.e4 Nb6 20.Bf4 dxe4+ 21.Bxe4 Nc4 22.Qb3 Nb6 +- (2.25) Depth: 9/31 00:00:03 1762kN 18.Rae1 Nd7 19.e4 Nb6 20.exd5 Nxd5 21.Nxd5 +- (2.22) Depth: 10/33 00:00:05 3285kN 18.Rae1 Nd7 19.e4 Qh3 +- (2.22) Depth: 11/38 00:00:12 7491kN 18.Rae1 Nd7 19.e4 Qh3 +- (2.06) Depth: 12/38 00:00:29 17639kN 18.Rae1 Nd7 19.e4 c5 20.Nxd5 cxd4 21.Kf4 +- (1.88) Depth: 13/40 00:01:13 44451kN 18.e4! +- (1.91) Depth: 13/42 00:02:26 91432kN 18.e4 dxe4+ 19.Bxe4 Nd7 20.Bg5 c5 21.Rae1 cxd4 22.Nxd4 Nge5+ 23.Kf4 Qh3 +- (1.75) Depth: 14/46 00:06:52 258106kN 18.e4 dxe4+ 19.Bxe4 c5 20.dxc5 Nd7 21.c6 bxc6 22.Bf4 +- (1.69) Depth: 15/47 00:23:25 886608kN 18.Rae1! +- (1.72) Depth: 15/47 00:27:21 1042597kN 18.Rae1-- +- (1.41) Depth: 16/43 00:38:55 1433521kN (blass, tel-aviv 06.02.2003) Uri
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