Author: Thomas Mayer
Date: 10:55:45 02/02/05
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Hi Dieter, On February 02, 2005 at 12:40:54, Dieter Buerssner wrote: >On February 01, 2005 at 16:44:48, Thomas Mayer wrote: > >>Maybe Yace can, Dieter is a clever >>guy, I have not tested... :) > >Thanks, but Yace can't do it. I only use recognizers up to 5 men. Quark up to 6 men without pawns... but not all is finished yet, some quite important once are still missing... but it grows -> at the moment I am debugging the stuff, there were several +/- etc. mistakes, also it seems I had some problems the nights I was programming that with the mirroring... this caused also some misevaluations. Anyway, it looks quite stable now. (Some issues left) > I have coded a few others (KBP[and more Ps] vs K with all rook pawns, and > KPPPP... vs K all rook pawns), but don't use it at the moment. They are part of my KP*K and KB*P* recognizers... this is quite simple and almost cost zero. If all pawns are on a rook file and the most advanced pawn is a draw in the bitbase then the hole position is draw... of course you could also program that without bitbases with some rules, but I have my doubts that this could be faster... > I cannot think of lots of configurations with > more than 5 pieces, where one could code a recognizer. Well, I doubt that I will program 6men recognizers -> those ideas will be put mainly in special evals -> why not use the bitbases in the eval if they are there ?! > I thought about totally > blocked positions like > > [D] K7/8/P2P2P1/P2P2P1/p2p2p1/8/8/k7 w > > but I have no efficient code for it. I think about that too in the moment, but before I get a headache I stop... :) So far I am quite happy about the speedup I get and about some earlier found solutions... I hope Quark will be near soon to Yace endgame strength... :) (As usual, you must have a target when you work on something... is it reachable ?!:) Greets, Thomas
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