Author: Ricardo Gibert
Date: 18:31:42 06/05/00
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On June 05, 2000 at 15:52:37, Ernst A. Heinz wrote: >On June 05, 2000 at 15:20:50, Andrew Dados wrote: > >>On June 05, 2000 at 08:22:44, Steffen Jakob wrote: >> >>>Hi! >>> >>>This is a position from an interesting standard game MissSilicon - Hossa, played >>>today at ICC: >>> >>>[D]5k2/7K/6P1/1p3p2/1P5P/1Pb5/8/8 w >>> >>>White is obviously winning. The static evaluation of this position of my program >>>is totally wrong because Hossa thinks that the pawn f5 is running. Even after >>>some improvements Hossa needs 8 plies to see a positive score! >>> >> >> Interesting question is how long it takes to find a positive eval for white in >>this position (few moves earlier): >> >>[D]8/4k1p1/6K1/1p2bPP1/1P6/1P5P/8/8 w - - >> >>(mine takes a bit less then 50 sec on K6-450 to show +0.6; no tablebases.) > >Hi Andrew, > >"DarkThought WCCC'99" needs less than a second to score White as >+0.3 in iteration #6 and as +0.57 in iteration #7. A score of +0.57 just means your program does not see that White is winning. Presumably, it would score it negatively without the superfluous pawn on b3? > >=Ernst= > >P.S. >WWW pages of "DarkThought" at http://supertech.lcs.mit.edu/~heinz/dt/.
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