Author: Richard Pijl
Date: 05:19:48 08/23/05
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On August 23, 2005 at 05:43:48, Tony Hedlund wrote: >Here are five positions that give you an indication of how strong your engines >are in endgames. The Baron, WCCC version _without_ EGTB's on a Xeon 2.8Ghz: >White to move, and it's a draw. > >The first one is very easy. Every program should find it, even without tbs. > >[D] 8/8/8/8/8/7n/6Kn/k6r w - - 0 1 Baron finds it instantly with a drawscore >The next two are harder. But a good program ought to make it, if it get some >time. > >[D] 1k6/ppr5/2b5/8/1KB5/8/7R/8 w - - 0 1 Rh8, found instantly with a drawscore >[D] 8/8/7p/3KNN1k/2p4p/8/3P2p1/8 w - - 0 1 No drawscore (or 'no progress' score) within 15 minutes >The last two are studies, and very difficult. They are probably unsolvable by >programs. > >[D] Kn6/8/8/3R2PB/8/2p2NP1/1q6/2k5 w - - 0 1 Rd1 selected at 1:01. Not a drawscore within 15 minutes, but score going towards 0 >[D] 6R1/P2k4/r7/5N1P/r7/p7/7K/8 w - - 0 1 Not found within 15 minutes Richard.
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