Author: Ricardo Gibert
Date: 14:12:27 11/27/00
Go up one level in this thread
On November 27, 2000 at 11:55:17, Uri Blass wrote: >On November 27, 2000 at 11:21:36, Uri Blass wrote: > >>On November 27, 2000 at 10:16:38, Uri Blass wrote: >><snipped> >>>[D]1rb5/rp1p1ppp/pPpP4/P1P5/7k/5K2/3B1PPP/8 w - - 0 1 >>> >>>Can program with white avoid bxa7 that let black free the pieces? >>> >>>I can give position when program has no chance to see a draw by fortress >>>position but 1.5-.5 is not enough for me and I try to give a position when every >>>1600 player can win the programs 2:0 even at correspondence time control. >>> >>>Uri >> >>I see that the diagram is wrong. >> >>White can play Kf4 and if Raa8 Kf5 is a forced mate for white. >> >>I should put the king in a different square so programs cannot use tricks that I >>did not mean to use. >> >>[D]1rb4k/rp1p1ppp/pPpP4/P1P5/8/8/3B1PPP/K7 w - - 0 1 >> >>Uri > >Sorry but the position is illegal because the rook not from a8(h8 or promoted >pawn) cannot get to a7 or b8 based on the pawn structure. > >Programs are stupid and cannot see that the position is illegal even if you give >them infinite time(I hope that someone will not find a way that I do not imagine >to get the rook from h8 or from a1-h1 to b8 or a7 without moving the bishop and >without moving a6,b7,c6,d7). > >It is better to put a queen at a7 and not a rook. > >black cannot save itself by Qxb6 because after cxb6 black has nothing. > >programs are probably going to capture the queen as white and lose the game. > >Here is the position(I hope the final diagram and I hope that there are no >mistakes after so many mistakes I am sure about nothing): > >[D]1rb4k/qp1p1ppp/pPpP4/P1P5/8/8/3B1PPP/K7 w - - 0 1 > >Uri Does Black have Ra8, Qb8, Qc7 and either way White captures allows Black to liberate his rook while the Bishop holds up the passed pawns? I'm a little to lazy now to check if this idea is really reasonable.
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