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Subject: Making Crafty play 200 Elo points stronger?

Author: Roy Eassa

Date: 13:05:38 09/13/03

Go up one level in this thread


On September 12, 2003 at 13:13:01, Dann Corbit wrote:

>On September 12, 2003 at 04:54:55, Russell Reagan wrote:
>
>>On September 12, 2003 at 03:11:31, Dann Corbit wrote:
>>
>>>From this page:
>>>http://www.cs.ualberta.ca/~mburo/
>>>
>>>We have this version of crafty 18.15 with probcut:
>>>http://www.cs.ualberta.ca/~mburo/mpc_crafty_18.15.tgz
>>>
>>>Seems to be two modified files:
>>>iterate.c and search.c
>>>
>>>Gets deeper in searches by 1-2 ply in late middle game.
>>>Don't know if it plays any better yet.
>>
>>I'd be glad to set it up playing various Crafties and other engines 24/7, but I
>>can't get it to compile. I've tried MSVC nmake and Cygwin make.
>>
>>Using MSVC nmake I get:
>>
>>option.obj : error LNK2001: unresolved external symbol @SpeedTest@0
>>search.obj : error LNK2001: unresolved external symbol @rint@8
>>wcrafty.exe : fatal error LNK1120: 2 unresolved externals
>>NMAKE : fatal error U1077: 'link' : return code '0x460'
>>Stop.
>>
>>Using Cygwin make I get a whole mess of undefined symbols (rotated bitboard
>>attack functions, FirstOne(), ...). I tried both the supplied makefile and the
>>one that comes with default Crafty.
>
>Here is a binary:
>ftp://cap.connx.com/chess-engines/new-approach/crafty-mpc.exe
>
>Here is a result set:
>
>{
>Not enough games to draw any conclusion, but certainly worth a look:
>
>  Program          Elo    +   -   Games   Score   Av.Op.  Draws
>1 Crafty-MPC_all : 2703  159 168    15    76.7 %   2497   33.3 %
>2 Crafty-19.3    : 2497  168 159    15    23.3 %   2703   33.3 %
>}


That link (to the .exe) does not work (it times out) for me.  Is there another?



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