Author: martin fierz
Date: 08:40:41 11/16/04
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On November 16, 2004 at 11:14:11, Kolss wrote: >On November 16, 2004 at 10:49:31, Alessandro Scotti wrote: > >>In this position (WAC 213): >> >>[D]3r1r1k/1b4pp/ppn1p3/4Pp1R/Pn5P/3P4/4QP2/1qB1NKR1 w - - >> >>the best move is Rxh7+, but is Rxg7 playable too? >> >>When I experiment with extensions I can get either this: >> >>Rxg7 Kxg7 Rxh7+ Kxh7 Qh5+ Kg7 Bh6+ Kh8 Bd2+ Kg8 >> >>or this: >> >>Rxh7+ Kxh7 Qh5+ Kg8 Rxg7+ Kxg7 Bh6+ Kh7 Bf4+ Kg8 >> >>both with a zero score. > >Hello, > >If I recall right (no program available to check at the moment), Rxg7 is NOT a >solution: it only leads to a draw by repetition, while Rxh7+ is a checkmate in >something like 16 (or 14). The difference is that after Rxg7 Kxg7 Rxh7+ Kxh7 >Qh5+, the black king can go to g8 instead of g7, such that the bishop check on >h6 is no longer possible. > >Please correct me if I am wrong, as I said, I do not have a chess program at >hand to check... > >Best regards - Munjong. i remember the same thing, i also once thought both were solutions, since my program showed a draw score for both moves. only later did i notice that Rxh7 is more than a draw! cheers martin
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