Author: Uri Blass
Date: 03:39:10 09/15/05
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On September 15, 2005 at 06:26:30, Ed Schröder wrote: >On September 15, 2005 at 04:30:38, Mark Young wrote: > >>On September 14, 2005 at 17:05:59, Ernst Walet wrote: >> >>>Because Zappa 1.1 is SMP and 64 bit, I gave it a try and was pleasant suprised. >>>One of my favourite chess positions is this one, where Kasparov played Rxd4. >>>How do other engines do? If your engine finds it please give it a couple of more >>>plies to see if it holds it. >> >>The better test for the engine in this position, is to see when the program see >>that Rxd4 is not winning. Since Rxd4 is only a draw with best play. >>This is why many programs will not play Rxd4, or drop the move with a longer >>search. > >1. Rxd4 cxd4 2. Re7+ Kb6 3. Qxd4+ Kxa5 4. b4+ Ka4 5. Ra7 Bb7 6. Rxb7 Qxd5 7. Rb6 >1-0 > >But you need to give engines moves in advance. > >Ed cxd4 is not forced. 1.Rxd4 Kb6 is better for black and I know no win for white after 1...Kb6. Uri
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