French Defense Exchange Variation Puzzle (Rated 949): Fork — Win a Loose Piece
In this middlegame, a single checking move doubles as an attack on an unprotected piece — the essence of a fork. Since the king must answer the check, the defender has no time to save the hanging piece, and the forking side emerges with a decisive material advantage. Pins elsewhere freeze the remaining defenders, so there is no saving the target. Short tactics like this decide games: one forcing move, one forced reply, and a clean win. The evaluation confirms it — the position turns clearly in Black's favor.