Author: Robert Hyatt
Date: 15:50:33 01/15/98
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On January 15, 1998 at 18:08:49, Shane Booth wrote: >[FEN "8/7p/6pP/k4pP1/b1p1pP2/KpPpP3/1P1P4/7Q w - - 0 1"] > >On January 15, 1998 at 13:28:13, Robert Hyatt wrote: >>I should add that while CB would obviously solve this and win, if it >>were >>playing, there is a way where it might not be able to win. Since it is >>going to have to shuffle pieces for > 40 moves so that the 50-move rule >>would kick it in the right direction, it is possible that by the time 50 >>moves approaches, it can't find a way to play Qd1 without passing thru >>another position for the 3rd time and repeating. I'd hope there are >>enough >>paths, but whether they are is only one issue. The other is whether it >>would >>leave itself a path where Qd1 works, because the king has to be over on >>the >>q-side or it doesn't work. >> >>I'd call this 50-50... > >Sorry, in this particular case the 50 move rule won't get it >for you. As Vincent originally wrote, 1. Qd1! is zugzwang. >If white fails to play Qd1 straight away and shuffles it around >black simply oscillates the bishop between b5, c6, d7. As soon >as White brings the queen to d1, Black plays Ba4 and prevents >the sac. > >So it's not so obvious that CB will solve this without setting >the 50-move counter close to 50. > >-- >Shane Booth Good point... I didn't spend a lot of time looking at this and overlooked that.
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