Author: Dann Corbit
Date: 14:34:04 04/06/99
Go up one level in this thread
On April 06, 1999 at 15:59:54, Paul Richards wrote: >After some analysis of this game, the critical computer error seems to >be 17. hxg3, which is a losing move. Fritz would not play this move, and >when forced to play it begins to smell trouble quickly. Before, the >position was about +50, after this move it becomes -144 at 12 ply, and >quickly gets worse at deeper plies. Crafty 16.1 (comes with Fritz) sees >nothing and actually recommends 17. hxg3, while Crafty 16.6 is better, >recommending 17. h3 and showing an evaluation of -17 for 17. hxg3? >at 12 ply. Tries by Comet and Exchess engines were underwhelming. >So this is a good test position. I would be interested in seeing what >other programs (specifically the *real* top programs like Hiarcs, Rebel, >Junior, Nimzo) think of 17. hxg3? and at what depth they see it is losing. >CM6000 would be interesting as well. > >Position just before 17. hxg3? in EPD notation: > >r1bq1rk1/ppp1n1b1/3p1n2/2PPp2p/1P2Pp2/1NN2Pp1/PB2B1PP/2RQ1R1K w - - C.A.P. data using Crafty: r1bq1rk1/ppp1n1b1/3p1n2/2PPp2p/1P2Pp2/1NN2Pp1/PB2B1PP/2RQ1R1K w - - acd 12; acn 110398517; acs 750; ce 34; pv h3 Ng6 Qd2 Nh7 cxd6 cxd6 Nb5 Ng5 Rc4 Nxh3 gxh3 Bxh3 Rfc1; Crafty likes h3 immediately, and sticks with that choice until plys 7&8 (from 2 to 5 seconds where it likes cxd6) then switches back to h3 and stays with it.
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.