Queens Pawn Game Sacrifice Puzzle (Rated 971): Back Rank Mate — Classical Chess
This classical middlegame puzzle shows how a seemingly active queen can create a forced mating net when the enemy king is boxed in by its own pieces and pawns. The key idea is a back rank mate pattern: once the defender is lured onto the first rank, the rook can deliver a decisive finish. White’s extra material and active pieces set up a tactical refutation of Black’s last move, turning a normal-looking position into a forced mate in 2.