Author: Dann Corbit
Date: 15:10:08 03/30/05
Go up one level in this thread
On March 30, 2005 at 17:55:12, chandler yergin wrote: >On March 30, 2005 at 13:58:12, Dann Corbit wrote: > >>On March 30, 2005 at 04:35:41, Dieter Buerssner wrote: >> >>>On March 29, 2005 at 23:37:20, Dann Corbit wrote: >>> >>>>That's a funny one, because even the lamest human can see it instantly. >>> >>>Dann, I am lamer than the lamest ... >>>I cannot see it. Also compare the following similar positions: >>> >>>[D] 1k6/8/8/8/PPP5/5p1p/8/6K1 w - - >>> >>>Here all three white pawns are advanced by two squares -> still won for black. >>>Now we only advance a and c pawns: >>> >>>[D] 1k6/8/8/8/P1P5/5p1p/1P6/6K1 w - - >>> >>>And here white wins. White also wins in the next position: >>> >>>[D] 1k6/8/8/8/5p1p/8/PPP5/6K1 w - - >>> >>>And a serious question: how to see fast, which of those positions is won and >>>which is lost? Can anybody do it without deep calculation? >> >>Probably, I am just supremely overconfident at times. The positions you posted >>seem more difficult to me, but I would *guess* they are still won. In each case >>I would have to see if the king can stop the pawns. >> >>It is obvious that the white king is totally stuck. You might as well nail him >>to the board. >> >>So, the question is, can I prevent the advance of the white pawns with a lone >>king. Since it looks to me like I can, the white king is dead. >> >>On the other hand, there are lots of places to make a false step, so even though >>I know I can win, I also might lose it by a blunder. >> >>Now, if you split the 3rd white pawn out one square to the right, then black is >>dead. > > >The Black king CAN stop the White pawns.. > >The White must lose a move, and cannot stop the Black Pawns.. You misunderstood me. I said that THIS was obviously dead lost: [D]1k6/8/8/8/8/5p1p/PP1P4/6K1 w - -
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