Author: Bruce Moreland
Date: 09:29:04 09/26/00
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On September 26, 2000 at 11:25:03, Steffen Jakob wrote: >[D]8/6k1/p5P1/1p5K/1P6/8/8/8 b > >Here Hossa continued with 5... Kf6 which is indeed losing. All moves seem to be >losing here. But when I forced 5... b5 6. bxa5 Hossa gave a score of mate in 54! > >How is this such a position handled in tournament chess? Is this a draw (I think >the rules have changed here several times?!)? If it's a draw then I will change >my tablebase probe code to return a draw score if the mate distance is > 50. You mean 5. ... a5, which goes into a QP vs Q ending. As was pointed out in another post, your example is probably moot here since the pawn gets to move and resets the counter, but even if it doesn't, you can ignore this case. We currently have DTM tables, and you you assume that DTM > 50 is a draw you'll get worse results than if you leave it alone. You'll play into positions where your opponent can convert in under 50 moves, and against humans you'll avoid endings that they will mess up. bruce
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