Economical An anonymous puzzle from the British Chess Magazine, 1993. White to mate in half a move. SelectClick for Answer> Black’s last move can only have been b7-b5. So White plays the first half of an en passant capture; that is, he moves his c5 pawn to b6 but doesn’t remove the captured pawn: That’s mate. July 15, 2010January 24, 2013 | Puzzles