Author: Soren Riis
Date: 10:31:47 12/02/98
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On December 02, 1998 at 11:35:12, Robert Ericsson wrote: >This a missing post that seems to have disappeared since yesterday... > >/Robert Ericsson >--------------------------------------- >I had the following position in a correspondence chess game some three >years ago. > >5b1r/3bkp2/3ppp2/p6P/4PP2/1PNB4/1KP5/7R b - - > >White's last move was 1. Kb1-b2 (1. f5 is better) and after 1. - f5! >2. exf5 Bg7 3. fxe6 fxe6 4. Be2 Rc8 5. Rh3 Rxc3! 6. Rxc3 Bd4! >black won easily within 10-15 more moves. > >I have tested this position on both Hiarcs 6 and Rebel 9 and they seem to >understand nothing about this position. They don't find 1. - f5 because >they obviously don't see the deadly pin long the diagonal. And even after >6. - Bd4 it will take a long time for them to realize that white is actually >lost. > >My questions are: when (at which PLY) do chess engines realize that: >a) 1. Kb2-b2 is bad due to the reply 1. - f5! >b) white is lost after 6. - Bd4 > >Robert Ericsson >---------------------------------------- Whoaw, this is one of the most computer hostile positions I have seen for a long time!! Are there any programs (including weaker experimental programs which might have been designed to make this kind of positional sacrifises) which can solve the above problem? Soren Riis
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