Author: Andrew Williams
Date: 01:21:19 09/28/00
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On September 27, 2000 at 20:03:27, Peter McKenzie wrote: >On September 27, 2000 at 17:16:21, Andrew Williams wrote: > >>On September 27, 2000 at 04:45:38, Eduard Nemeth wrote: >> >>>[D]8/8/p3R3/1p5p/1P5p/6rp/5K1p/7k w - - 0 1 >>> >>>Shredder 4 and Fritz 6a this don't find ! >>> >>>Eduard >> >>PostModernist finds this easily enough: >> >>9= +M07 2 102865 1. Re1 Rg1 2. Rf1 a5 3. bxa5 b4 4. a6 b3 5. a7 Rxf1 >>6. Kxf1 b2 7. a8=Q >> >>ie 2 seconds, 102865 nodes. > >LambChop didn't find it, it looks like a nullmove problem to me. >After 1.Re1+ Rg1 2.Rf1 black just nullmoves, so the zugzwang is not detected. > >I guess you don't nullmove in Rook endings? > Correct. Andrew Williams
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