Chess puzzle (Checkmate)
Opening: Queens_Gambit_Accepted, Queens_Gambit_Accepted_Other_variations
Moves: 1. d4 d5 2. c4 dxc4 3. Nc3 Nf6 4. e4 Bd7 5. Bxc4 e6 6. e5 Ng8 7. Nf3 Bb4 8. O-O
Ne7 9. Bg5 h6 10. Bxe7 Qxe7 11. Bb5 c6 12. Be2 O-O 13. a3 Ba5 14. b4 Bb6 15.
Bd3 a5 16. bxa5 Bxa5 17. Bc2 Bxc3 18. Qd3 Bxa1 *
Position (FEN): rn3rk1/1p1bqpp1/2p1p2p/4P3/3P4/P2Q1N2/2B2PPP/b4RK1 w - - 0 19
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 949
Best move: Qh7#