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03 May 11
5 edits
Originally posted by uzlessHow about if, on the move before (black's go) it was:
but that's a rediculous move black would have made before white took the queen with the horse...why would black leave the queen in corner like that?? Seems dumb.
So folks, is this puzzle broken because we can put a black queen, bishop, knight or nothing at-all on A8 and there is no way to tell which is right?
03 May 11
1 edit
Originally posted by iamatigerI think the stipulation must be changed.
How about if, on the move before (black's go) it was:
[fen]Q1K5/k7/1N6/8/8/5q2/7P/6B1 b[/fen]
So folks, is this puzzle broken because we can put a black queen, bishop, knight or nothing at-all on A8 and there is no way to tell which is right?
"White to move - what was Black's last move?"
This should avoid any ambiguity.
You should pat yourself on the back for this one - Smullyan completely missed this possibility, as the passage from his book shows: http://www.chessbase.com/puzzle/puzzle9/puzz9-5a.htm.