Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Symmetrical_Variation
Moves: 1. d4 Nf6 2. Nf3 d5 3. Nc3 Bf5 4. e3 e6 5. Bd3 Bg4 6. O-O c5 7. h3 Bh5 8. g4
Bg6 9. Ne5 c4 10. Bxg6 hxg6 11. Qf3 Nbd7 12. g5 Ne4 *
Position (FEN): r2qkb1r/pp1n1pp1/4p1p1/3pN1P1/2pPn3/2N1PQ1P/PPP2P2/R1B2RK1 w kq - 1 13
White to move.
Themes: Attacking f2 or f7 Middlegame Mate in 1 
Puzzle rating: 834
Best move: Qxf7#