Author: James T. Walker
Date: 06:30:31 09/24/99
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On September 24, 1999 at 00:45:45, Steve Maughan wrote: >I gave Nimzo 7.32 the following test position > >r2b1qrk/ppp3pp/3p1p2/4pPPQ/4P2P/3PB3/PPP5/1K4RR w - - 0 1 > >It's mate in 4 via 1.Qxh7+ Kxh7 2.g6+ Kh8 3.Rg5 fxg5 4.hxg5 mate. The position >is simple for todays programs to solve. > >However giving Nimzo the white pieces it immediately announces mate in 2!! Now >I can accept that it is reasonable to announce mate in more than 4, but not >less. Also after playing 2.g6 it announces mate in 1, and then after Rg5 and >hxg5 it claims mate in 0. > >I assume that this is a minor bug in the engine. It really should be sorted out >as it means that Nimzo cannot be trusted to give shortest mates. > >Regards > >Steve Maughan Hello Steve, This is not new for Nimzo! Nimzo 99 has similiar problems. In fact when given this position my Nimzo99 instantly plays Qh7+ and annouces mate in 1! After KxQ it plays g6+ & mate in 1 again. So it's an old story. I didn't know who to tell about this except Chessbase but I don't think they care and I don't think they passed this info on to the programmer. If they did then he doesn't care. Jim Walker
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