Author: Robert Hyatt
Date: 19:43:48 03/16/01
Go up one level in this thread
On March 16, 2001 at 19:15:02, Michael Fuhrmann wrote: >On March 16, 2001 at 17:34:50, Robert Hyatt wrote: > >>On March 16, 2001 at 16:36:45, Michael Fuhrmann wrote: >> >>>[D] 8/8/1pk1prp1/p6p/2PP1P1P/4P3/3K4/6R1 b - - 0 42 >>> >>>Crafty reached this position as black vs. little goliath in a game (pondering >>>off). After about 8 seconds thinking on my 350 MHz box, crafty played b5. This >>>had the effect of losing the a pawn a few moves later, and the game was quickly >>>lost after that. Crafty may be lost anyway, but b5 doesn't help. >>> >>>Later, I let crafty analyze the position. It liked b5 for about 4 seconds, then >>>switched to Kc7. So my question is, why did Crafty stick with b5 for 8 seconds >>>in the game, but realized in half that time during analysis that the move was >>>inferior? >> >> >>Don't forget "position learning". Delete position.bin and try it again >>to see if it takes longer to see the problem... >> > >Seems to have no effect. I deleted position.bin (& position.lrn) and it still >switches from b5 to Kc7 after about 4 sec. In that case it is probably an artifact caused by the transposition table having entries from earlier searches.. Not much you can do about it... unfortunately.
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