Author: Uri Blass
Date: 04:44:56 04/26/01
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On April 26, 2001 at 07:18:17, Thomas Lagershausen wrote: >On April 26, 2001 at 02:37:39, Uri Blass wrote: > >>game 1: >> >>In this position >>R7/3r2k1/4b1p1/P2N3p/5P1P/3K1BP1/5b2/8 w - - 0 1 >>>position happened >> >>Deep Fritz played 56.Kc4 0.47/15 Rc7 57.Kb4 0.28/16 Rd7 and the following > >> >>[D]R7/3r2k1/4b1p1/P2N3p/1K3P1P/5BP1/5b2/8 w - - 0 1 >> >>Deep Fritz played 58.Nb6 0.09/16 time when it pondered 8:57 >>and used 1007 knodes per second. >> >>I believe that it is a mistake in the time allocation of Deep Fritz. >>It should use more time for 58.Nb6 and the time of pondering was not enough. >> >>The following facts are obvious: >> >>1)Deep Fritz had a possible move that force repetition(58.Kc4) > >White is a pawn up and should avoid a draw. Draw is the best that white can do in the position. In the game white lost. > > >>2)The score of Deep Fritz dropped and was only slightly above 0 >> >>I believe that programs should use more time in these situations. >>The time control was 40/90 and it means that Deep Fritz probably had more than >>45 minutes to calculate and in this situation that is not common I would prefer >>to use at least half of them. >> >>After Rd3 it played 59.Bc6 and the score dropped to -0.06 and after the expected >>move Rb3+ the score dropped again to -0.53 >> >> >> >> >> >> >>game 3: >> >> >>[D]8/q3kp2/3p1p2/r3pP2/1p2P1PP/8/P1PQNb1R/1K6 w - - 0 1 >> >>It seems that Nc1 is the only move for white not to lose material >> >>Deep Fritz played Qxb4 with 0.00 evaluation(it used 163 seconds and searahed 906 >>knodes per second). >>Only after Rxa2 the score dropped to -0.34 >> >>How much time do chess programs need to find Nc1? >>Does it save white? > >No Nc1 is a weak move. This is correct that Nc1 is also losing and the mistake was probly one move before. Uri
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