Chess puzzle (Checkmate)
Opening: Philidor_Defense, Philidor_Defense_Other_variations
Moves: 1. e4 e5 2. Nf3 d6 3. d4 Bg4 4. dxe5 Bxf3 5. Qxf3 dxe5 6. Bc4 Qf6 7. Qb3 b6 8.
Bg5 Qg6 9. h4 h5 10. Nd2 Nc6 11. O-O-O Nd4 12. Qa4+ c6 13. Nf3 b5 14. Qa6 bxc4
15. c3 Nxf3 16. Qxa7 Rxa7 *
Position (FEN): 4kbnr/r4pp1/2p3q1/4p1Bp/2p1P2P/2P2n2/PP3PP1/2KR3R w k - 0 17
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 400
Best move: Rd8#