Author: Vasik Rajlich
Date: 11:00:34 12/25/05
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On December 25, 2005 at 09:51:18, Sune Larsson wrote: >> >>I've already managed to make a rough design of the endgame knowledge solution >>for Rybka 1.2, and this position won't be covered by it. >> >>In the long term, however, an engine should solve this position as well. It's >>part of the bigger concept of knowing when you can't make progress. >> >>Vas > > > Yes, it's important to know when no progress is possible. Like in this position > which comes from a Nunn ending1 match between Fritz9 and Rybka. Rybka entered > this position happily, as black, showing + 4.02. But of course it's a draw. > The white rook is rock solid on f6. > > [D]8/4k3/5Rp1/6P1/3K1P2/1P6/8/7q b - - 0 25 > > > /S Yup. Rybka 1.2 will actually do ok here, but there are some deeper questions. One idea I have thought about a little bit is that an advantage should grow over time (ie with more search). I think it's true of every serious advantage, but the opposite may be true of small advantages. Vas
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