Author: blass uri
Date: 00:51:15 06/02/99
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On May 31, 1999 at 17:49:15, Dann Corbit wrote: >I have found the "Best Ways To Checkmate" to be one of the most accurate test >suites. Of those problems where none of the programs I have tried found a >checkmate, it seems obvious that a checkmate does exist (except for the last few >here). When you are up by more than a queen, checkmate is pretty nearly >certain. So my questions are: >0. Does anyone's program find the actual checkmate for any of the following 16 >problems? >1. Are the last two really checkmates? I think not. > >1r3rk1/3b2p1/3q1nQp/R7/2p1p3/2N4P/PP2R1P1/1B5K b - -; acd 12; ce 1456; pv Ng4 g3 I tried only this position Junior5.4 found mate in 12 It finished iteration 16 after 38 minutes and 10 seconds looking at 345536 Knodes 1...Ng4 2.g3 Qxg3 3.Rf5 Qxh3+ 4.Kg1 Bxf5 5.Qd6 Be6 6.Qd1 Qg3+ 7.Rg2 Qe3+ 8.Kh1 Nf2+ 9.Kg1 Nxd1+ 10.Kh2 Rf1 I used pentium200MMX with 64M hash tables. Uri
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