Author: blass uri
Date: 12:02:12 12/04/98
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On December 04, 1998 at 13:40:34, Ernst A. Heinz wrote: >On December 04, 1998 at 06:14:38, blass uri wrote: > >>3r2k1/p4bp1/5q1p/8/3Npp2/1PQ5/P2R1PPP/6K1 w - - 0 1 >> >>In this position old deep blue played 29.g3 and lost after Rd5 >> >>Junior5 can find Ne2 in a few hours and I think that black cannot win after >>29.Ne2 >> >>When I give Junior5 the position after 29.g3 the evaluation after 10 hours is >>more than a pawn advantage for black. >> >>I think that this position proves that deep blue as a program is sometimes worse >>at tactics than top programs >>If top programs were 500 times faster they could reject 29.g3 because of >>tactical reasons at tournament time control. > >No 500x times speedup needed -- "DarkThought" happens to lock onto 29. Ne2 >in iteration #12 with a score of -0.25 after roughly 2 minutes on a 600MHz >Alpha-21164a. > >But who knos if it does so for the right reasons ... > >=Ernst= Fritz5 also finds Ne2 in a short time but not because of tactical reasons You can compare the scores after Ne2 and after g3 If there is a big difference then it rejects g3 for a tactical reason otherwise it rejects g3 for a positional reason. Uri
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