Author: F. Huber
Date: 13:00:04 05/12/03
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On May 12, 2003 at 14:35:21, John Merlino wrote: Hello John, >The "ana=" parameter is the one that is used in CM9000 for the "Mentor Lines" >window to request a certain number of "best lines". So, "ana=3" will produce at >least 3 PVs for each depth. many thanks for your answer - I knew you would know it. :-) Seems interesting, this "ana" - if I understand this right, it should also work when using TheKing outside CM9k, e.g. in Arena. (Must try it!) >From what I know about the sel parameter, this should work, as "sel=0" pretty >much is the same thing as using the "Solve for Mate" feature in CM9000. Could >you post the position so I can test it? >jm Here´s one (of a lot of similar) examples - running TheKing under Arena with "sel=0" (better: cm_parm sel=0), no difference if running as UCI or WinBoard-engine: 8/3p2N1/8/N7/1B1k1K2/8/2Bn4/8 w - - (is ´Mate in 5´) TheKing UCI: D3 00:00 11,34 Nf5 Kd5 Bxd2 Kc5 Nb7 Kd5 Bb3 Kc6 D4 00:00 11,48 Nf5 Kd5 Bxd2 Kc5 Ke5 Kb6 Nb3 D5 00:01 11,48 Nf5 Kd5 Bxd2 Kc5 Ke5 Kb6 Nc4 Kc5 Ncd6 D6 00:04 12,11 Nf5 Kd5 Bxd2 Kc5 Ba4 Kb6 Bxd7 Kc7 D6 00:05 99,87 Bg6 Kd5 Bh7 d6 Bg6 Kd4 Ne6 Kd5 Nc7 Kd4 Nb5 Kd5 Bf7 D7 00:07 99,87 Bg6 Kd5 Bh7 d6 Bg6 Kd4 Ne6 Kd5 Nc7 Kd4 Nb5 Kd5 Bf7 D8 00:16 99,89 Bg6 Kd5 Bh7 d6 Bc2 Kd4 Ne6 Kd5 Kf5 Nf1 Bb3 D8 00:23 99,91 Bh7 Kd5 Ne8 Kd4 Nc7 Ne4 Bxe4 d6 Nb5 D9 00:24 99,91 Bh7 Kd5 Ne8 Kd4 Nc7 Ne4 Bxe4 d6 Nb5 WB-King WB1: D3003 00:00 11,34 Nf5+ Kd5 Bxd2 Kc5 Nb7+ Kd5 Bb3+ Kc6 D4004 00:00 11,48 Nf5+ Kd5 Bxd2 Kc5 Ke5 Kb6 Nb3 D5005 00:01 11,48 Nf5+ Kd5 Bxd2 Kc5 Ke5 Kb6 Nc4+ Kc5 Ncd6 D6006 00:04 12,11 Nf5+ Kd5 Bxd2 Kc5 Ba4 Kb6 Bxd7 Kc7 D6006 00:06 M6 Bg6 Kd5 Bh7 d6 Bg6 Kd4 Ne6+ Kd5 Nc7+ Kd4 Nb5+ Kd5 Bf7+ D7007 00:07 M6 Bg6 Kd5 Bh7 d6 Bg6 Kd4 Ne6+ Kd5 Nc7+ Kd4 Nb5+ Kd5 Bf7+ D8008 00:17 M5 Bg6 Kd5 Bh7 d6 Bc2 Kd4 Ne6+ Kd5 Kf5 Nf1 Be4+ D8008 00:24 M4 Bh7 Kd5 Ne8 Kd4 Nc7 Ne4 Bxe4 d6 Nb5+ D9009 00:25 M4 Bh7 Kd5 Ne8 Kd4 Nc7 Ne4 Bxe4 d6 Nb5+ In both cases TheKing first finds #7, #6 before the shortest one (#5) (numbers in WB-mode are 1 too small, maybe an Arena problem?). As I understand ´selectivity´, TheKing shouldn´t search deeper than its current search depth (with sel=0) - strange? But certainly you´ll have the right explanation for it ;-) Best regards, Franz.
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