Author: Mike Byrne
Date: 16:03:56 02/01/04
Go up one level in this thread
On February 01, 2004 at 12:50:11, David Dahlem wrote: >On February 01, 2004 at 11:48:39, Mike Byrne wrote: > >>On February 01, 2004 at 11:18:45, David Dahlem wrote: >> >>>I see the source for Crafty 19.10 is now available at .... >>> >>>ftp://ftp.cis.uab.edu/pub/hyatt/v19/crafty-19.10.zip >>> >>>What are the changes in this version? Is this the version playing in CCT6? >>> >>>Regards >>>Dave >> >>from main.c: >> >> >> ******************************************************************************* >> * 19.10 a fix to the EvaluateWinner() code to recognize that while KRB vs * >> * KR can not normally be won by the KRB side, we require that the * >> * KR side not be trapped on the edge of the board, where it can be * >> * mated. FUTILITY code put back in. 19.9 will be the SE version * >> * for those wanting to play with it. new "learn" command option to * >> * allow the user to set the position learning parameters that are * >> * used to trigger position learning and disable position learning * >> * after the game is already lost. the command syntax is as follows * >> * "learn trigger cutoff" and are expressed as fractions of a pawn * >> * with a decimel point. the default is learn .33 -2.0 which says * >> * to do position learning when the score drops 1/3 of a pawn, but * >> * turn it off after the score reaches -2.00 as the game is already * >> * lost and learning won't help at this point. this is the CCT-6 * >> * version exactly as played in the CCT-6 tournament. * >> * * >> ******************************************************************************* >> >>I had not realzied that there was newer version --- so Crafty 19.09 SE will not >>be released :( >> >>-- I will start working on Crafty 19.10 SE, since this version appears to be >>the "keeper" here. All my changes made to 19.09 will be carried over to 19.10 >>SE :>) > >Do you recommend deleting the old position.lrn file, since this version has a >new learn command option? > >Regards >Dave yes ..I would delete the the *.lrn file for every version -- because every version has the potential to evaluate things differently - no sense in mixing apples and oranges
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