Chess puzzle (Checkmate)
Moves: 1. d4 a5 2. e3 a4 3. Qf3 a3 4. Bc4 axb2 *
Position (FEN): rnbqkbnr/1ppppppp/8/8/2BP4/4PQ2/PpP2PPP/RNB1K1NR w KQkq - 0 5
White to move.
Themes: Attacking f2 or f7 Opening Mate in 1 
Puzzle rating: 1084
Best move: Bxf7#