Author: Enrique Irazoqui
Date: 08:56:52 01/15/00
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On January 15, 2000 at 11:14:16, Len Eisner wrote: >On January 15, 2000 at 05:24:07, Enrique Irazoqui wrote: > >>On January 15, 2000 at 05:19:40, Bertil Eklund wrote: >> >>>On January 15, 2000 at 01:19:48, Len Eisner wrote: >>> >>>>In the following position Junior 6 plays 88…Rd3+ which wins (mate in 15), but >>>>the simple g4 wins much faster (mate in 8). Why do the tablebases prevent >>>>Junior from finding the fastest mate? >>>> >>>> >>>>Len >>> >>>Hi! >>> >>>I think Enrique didn´t have the Turbo-CD´s in the beginning of the tournament. >>>As far as I know, he have installed them now, >> >>You are right. >> >>Enrique >> >>>so Junior finds it now. >>> >>>Bertil > >Actually, the 5 piece endgame in question (KRB vs KP) is not included on the >Turbo-CD´s. My guess is that Junior plays Rd3+ because it wants to simplify >into a position contained in one of the 4 piece tablebases (KB vs KP), even if >it is a much longer mate. > >You have to admit, Rd3+ looks bizarre when the simple g4 is available. What >human master would play Rd3+? I guess none, but then again computer programs and GMs don't follow the same thinking or computing process. Would a GM in the position below play 84.Kb4 and announce mate in 19? Sure not, and Junior 6 did in the 13th game against Shredder 4... Enrique [D] 8/8/2k1B3/1p5q/3Q4/1KP5/8/8 w - - 0 84 >Len
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