Author: Steven J. Brann
Date: 17:26:29 03/21/04
Go up one level in this thread
On March 21, 2004 at 18:33:32, John Merlino wrote: >On March 21, 2004 at 18:22:14, Jihun Lee wrote: > >>On March 21, 2004 at 08:39:38, Rex wrote: >> >>>Not sure how programs see this...but how soon does your favorite find the mate? >>> >>>[D]r4rk1/p2nqppp/2p2n2/3p4/pP3P2/2Pp1b2/P2N1KPP/R1B3QR b - - 1 1 >> >>Chessmaster 9000 SKR - 2m24s to find Mate in 9 on an Athlon XP 2000 > >How much hash table space are you having the mentor engines allocate? My P4-2.4 >took quite a bit longer with 64MB of space. > >jm I've also found that increasing the Selective Search can make quite a difference with time to solve most problems. I have mine set to SS=16, 256MB of ttable size on a P4-3.0G HT machine. In this case 1:39 for a mate in 9. Time Depth Score Positions Moves 0:00 1/3 -12.88 6288 1...Qe2+ 2.Kg3 Nh5+ 3.Kh3 Bxg2+ 4.Kh4 Bxh1 5.Qxh1 Nxf4 0:00 1/4 -12.43 20516 1...Qe2+ 2.Kg3 Nh5+ 3.Kh3 Bxg2+ 4.Kh4 Ndf6 5.Nf3 Qxf3 0:00 1/5 -17.32 98221 1...Qe2+ 2.Kg3 Nh5+ 3.Kh3 Bxg2+ 4.Qxg2 Nxf4+ 5.Kg3 Qxg2+ 6.Kxf4 Qxh1 7.Nf3 0:00 1/6 -Mate13 258265 1...Qe2+ 2.Kg3 Nh5+ 3.Kh3 Nxf4+ 4.Kg3 Nh5+ 5.Kh3 Bg4+ 6.Kh4 g5+ 7.Kxg5 h6+ 8.Kxh6 Qe6+ 9.Kg5 Qf6+ 10.Kxg4 Ne5+ 11.Kh3 Nf4+ 12.Kg3 Ne2+ 13.Kh3 Qh6# 0:03 1/7 -Mate12 1038015 1...Qe2+ 2.Kg3 Nh5+ 3.Kh4 Qe7+ 4.Kh3 Nxf4+ 5.Kg3 Nh5+ 6.Kh3 Bg4+ 7.Kxg4 Ndf6+ 8.Kh4 g5+ 9.Kh3 g4+ 10.Kh4 Ne4+ 11.Kxg4 Qg5+ 12.Kh3 Nf4# 0:08 1/8 -Mate12 2946971 1...Qe2+ 2.Kg3 Nh5+ 3.Kh4 Qe7+ 4.Kh3 Nxf4+ 5.Kg3 Nh5+ 6.Kh3 Bg4+ 7.Kxg4 Ndf6+ 8.Kh4 g5+ 9.Kh3 g4+ 10.Kh4 Ne4+ 11.Kxg4 Qg5+ 12.Kh3 Nf4# 0:24 1/9 -Mate10 9201719 1...Qe2+ 2.Kg3 Bxg2 3.Qxg2 Nh5+ 4.Kh4 Qxg2 5.Nf1 f5 6.Ng3 g5+ 7.fxg5 Ne5 8.h3 Qxg3+ 9.Kxh5 Qf3+ 10.Kh4 Ng6# 0:47 1/10 -Mate10 18400316 1...Qe2+ 2.Kg3 Bxg2 3.Qe1 Ne4+ 4.Kh4 Ne5 5.Qg3 Ng6+ 6.Qxg6 fxg6 7.Nxe4 Qh5+ 8.Kg3 Qf3+ 9.Kh4 Qh3+ 10.Kg5 Qh5# 1:39 1/11 -Mate09 38330328 1...Qe2+ 2.Kg3 Bxg2 3.Qe1 Ne4+ 4.Kh4 Ne5 5.Qg3 g6 6.Qg5 Bxh1 7.Nf3 Nxf3+ 8.Kh3 Qxh2+ 9.Kg4 Qg3# 2:55 1/12 -Mate09 69133288 1...Qe2+ 2.Kg3 Bxg2 3.Qe1 Ne4+ 4.Kh4 Ne5 5.Qg3 g6 6.Qg5 Bxh1 7.Nf3 Nxf3+ 8.Kh3 Qxh2+ 9.Kg4 Qg3# Steve
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