Author: James Long
Date: 12:42:38 01/30/98
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On January 29, 1998 at 17:57:00, David Fotland wrote: >I know that some positions require underpromoting a pawn to a knight, >but are there any that win with an underpromote to a bishop or rook? > >I'd like to limit the move generator to just queen and knight >promotions. > I asked that very same question on ICC a few weeks ago. The answer was : there are rare positions in which underpromoting to a rook avoids a stalemate, and even rarer positions where underpromotion to a bishop is necessary, but they do exist. Don't ask me to come up with them! Maybe Pete Kappler could... Pete? KnightCap only considers queen and knight promotions, and it does, ok, so it's a gamble. If you place the queen promotion above the others in your move list the other three promotions should get cutoff very quickly, so I'd put 'em in. --- James
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