Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Chigorin_Variation
Moves: 1. d4 d5 2. Nc3 Bf5 3. Nf3 e6 4. a3 Nf6 5. h3 h5 6. e3 Bd6 7. Bd3 Bxd3 8. Qxd3
O-O 9. e4 dxe4 10. Nxe4 Nc6 11. Nfg5 e5 12. Nxf6+ Qxf6 *
Position (FEN): r4rk1/ppp2pp1/2nb1q2/4p1Np/3P4/P2Q3P/1PP2PP1/R1B1K2R w KQ - 0 13
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 694
Best move: Qh7#