Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Chigorin_Variation
Moves: 1. d4 d5 2. Nf3 Nc6 3. Bf4 Bf5 4. Nbd2 e6 5. c3 Bd6 6. Bxd6 Qxd6 7. e3 Nf6 8.
h3 Ne4 9. Nxe4 Bxe4 10. Bd3 O-O 11. Ng5 Bxd3 12. Qxd3 h6 *
Position (FEN): r4rk1/ppp2pp1/2nqp2p/3p2N1/3P4/2PQP2P/PP3PP1/R3K2R w KQ - 0 13
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 424
Best move: Qh7#