Author: Will Singleton
Date: 14:25:08 03/02/99
5R2/8/8/4rp2/3r4/5k2/2B1p2P/2K1R3 w - - White to move and draw. Well, that one turned out to be more interesting than I anticipated. We found that a couple of programs could see the draw w/o tablebases (Ferret, and perhaps Lambchop), and Crafty gave the tablebase draw result. Gives the rest of us something to think about. Aside from that, there was pretty much agreement on Rxf5. One program chose Bxf5 with a larger negative score than the concensus on Rxf5. That might bear looking into. Zchess was the only one not to consider Rg8. The passed pawns were scored so highly that the idea of bringing the rooks down to defend wasn't even an option. And for some reason, it took my program a ton of nodes to resolve the fail-low, and then a ton more to find the better move. Something for me to worry about. (Maybe time to put in some endgame knowledge, but I think there's something else going on.) Will
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