The position below was achieved in a normal chess game, and there are no other pieces left on the board with the exception of the white King. Where is the white King? How was this position achieved?

Black

White

(In reply to re: Observations -- and a hint by Old Original Oskar!)

The only two unusual moves are castling and en passant, so the only thing you could be referring to is en passant. I guess there would need to be a black pawn at B4, with a white pawn at C4 having just moved from C2. This would allow the black pawn to expose the king at B3 to the rook while simultaneously opening attack for the bishop. So the king would have to be at C3, having just captured black's pawn since that's the only piece left.

I guess that makes this a solution.

I swear I've seen this before, when I was studying reverse analysis in chess.

Posted by Eric on 2005-08-05 18:07:42