Author: Mike Byrne
Date: 14:27:56 07/04/03
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On July 04, 2003 at 17:24:32, Mike Byrne wrote: >On July 04, 2003 at 17:04:24, Dimitris Poulos wrote: > >>It seems you have found something very importand. Sory that I missed that, but >>do all those Crafties share the same "secret"? I mailed you for the new Crafty. >>You are going to send us all those personalities? >>Excuse my ignorance! >>Regards, Dimitris > >Yes - all the personalities have the same "secret". The "secret" they all share >is dynamic null move. Other parameters are slightly different. Crafty always >had a null_min and mull max with a range of 1. I just expanded boundaries by >one each way depending on the position - so nullmove nows has a range of 4 and typo - the nullmove now has a range of 3 ,not 4. From 1 to 4. >it is dynamic within the search. The "secret" of course is how I did that - it >was really just a crap shoot - let me try this "xx code" and see what happens. >I just happened to nail it pretty good on the first shot. > >The genesis came from tinkering with MPC - I first tried this on MPC and it made >it much better - but it still was not as good as standard crafty. So my thought >was let me try it on standard crafty and see what happens. > >Viola! > >There was bug in the first version that it to crash. This latest test version >has not crashed at all in about 50 5 0 games and it's a little different that >my first pass. I am very excited about it -but that is tempered with the >thought that this may be a one time fluke and nobody will be able to repeat my >results. > >I made send it out later this weekend. I will ot course send Bob the full >source. > >If anyone is interested in obtaing a free copy of this modified Crafty with all >the F8 eng files to run this in F8 Shredder 7 or Junior 8, email me with the >word "include" in the subject heading.
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