Author: Eran
Date: 17:19:51 02/06/02
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On February 06, 2002 at 20:06:31, Dann Corbit wrote: >On February 06, 2002 at 20:05:18, Eran wrote: > >>On February 06, 2002 at 18:12:11, Dann Corbit wrote: >> >>>[D]4k3/Q3p1Q1/1Q5B/Q1QN1NQ1/4QQ2/B2Q4/8/2R1KR2 w - - acd 4; acn 29; acs 0; bm >>>Nc7# Nd6# Nf6# Q5g6# Q7g6# Qaa4# Qab5# Qaxe7# Qbb5# Qbb8# Qbc6# Qbg6# Qc8# Qcb5# >>>Qcc6# Qcxe7# Qd8# Qdb5# Qea4# Qexe7# Qf8# Qfb8# Qg5xe7# Qg7xe7# Qg8# Qh5#; ce >>>32766; dm 1; pv Nd6#; >>> >>>I have found that some programs crash, and others think for minutes on this mate >>>in 1. >> >>Your position is not realistic, because nine White Queen pieces are on the >>board. In fact, every game each side cannot have more than eight pawns. If a >>player promotes all his/her eight pawns, there will be no more than eight Queen >>pieces on his/her side. Therefore, your position is baloney! It never happened. > >You can definitely have 9 queens. >However, you can't (at the same time) have two bishops of the same color. Well, I think many of the chess programs are not designed to play a game with nine or more White Queen pieces on a board. That is why some of the chess programs crash and it is understandable. Can't have two bishops of the same color? Wrong! I'll tell you why. Let's suppose in any game one White Bishop stands on the h1 light square and you move a White Pawn to the a8 light square and underpromote to White Bishop. That is a legal move and now you have two white Bishops on the same color of the light squares. Now, do you understand it? ;-) Eran
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