Author: David Dahlem
Date: 09:50:11 02/01/04
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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
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