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Subject: Re: Crafty's tactical prowess

Author: Tom Likens

Date: 06:34:59 03/24/04

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On March 24, 2004 at 06:22:00, Tord Romstad wrote:

>On March 23, 2004 at 22:36:28, Dann Corbit wrote:
>
>>How long for your program to solve these on 950 MHz equivalent?
>>2b5/1r6/2kBp1p1/p2pP1P1/2pP4/1pP3K1/1R3P2/8 b - - bm Rb4; id "WAC.230";
>>2rq1bk1/p4p1p/1p4p1/3b4/3B1Q2/8/P4PpP/3RR1K1 w - - bm Re8; id "WAC.131";
>>4r1k1/p1qr1p2/2pb1Bp1/1p5p/3P1n1R/1B3P2/PP3PK1/2Q4R w - - bm Qxf4; id "WAC.141";
>>5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - bm Qg2+; id "WAC.163";
>>8/7p/5k2/5p2/p1p2P2/Pr1pPK2/1P1R3P/8 b - - bm Rxb2; id "WAC.002";
>
>I'll give you my numbers for a PIV 2.4 GHz, and leave to others to translate
>to a 950 MHz machine.
>
>WAC230: My engine can probably search for weeks without solving this one.
>WAC131: 6 plies, 22600 nodes, 0.20 seconds.
>WAC141: 6 plies, 18310 nodes, 0.16 seconds.
>WAC163: 9 plies, 493949 nodes, 2.61 seconds.
>WAC002: 11 plies, 452799, 1.36 seconds.
>
>I agree with Martin that there is no longer any reason to use WAC.  The
>last time I tried the whole suite, Gothmog solved 298/300 at 5 seconds
>per position (as usual, number 100 and 230 were the unsolved ones).  Most
>other engines probably get similar scores.
>
>Except for positions 100 and 230, which are more about eval than about
>search, all positions are almost trivial.  ECMGCP is a much better suite.
>
>Tord

Yep, same story for my engine (100 and 230 don't get solved).  GCP's ECM
test suite is a *much* better test.  Djinn gets about 125 of these at 30 sec/pos
on my FX-51.  I'll probably run it tonight at 5 sec/pos but my suspicion is that
it will get less ;-)

By the way, does anyone know how crafty does on ECM at 5 sec/pos?

--tom



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