Author: José de Jesús García Ruvalcaba
Date: 11:34:20 06/21/99
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On June 21, 1999 at 13:53:48, James Robertson wrote: >My program does check, recapture, and pawn push extensions, but I have heard >that many programs do a lot more. I think Gromit said he does something like 10 >different extensions? > >Could someone please tell me what different kinds of extensions are sometimes >used? It would be cool to try them out on my program. > >James 1. Pawn ending extension. 2. Fail high extension. 3. Preferred variation extension. 4. One-reply extension. 5. Singular extension. 6. Enabled move extension. I have an idea; but I have not tried it as I am not a chess programmer. Extend on moves which drastically (this has to be defined) increase the mobility and/or decrease opponent's mobility. Moves which do the opposite can be forward-pruned, too.
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