Chess puzzle (Checkmate)
Opening: Philidor_Defense, Philidor_Defense_Other_variations
Moves: 1. e4 e5 2. Nf3 d6 3. Bb5+ Nd7 4. Nc3 h6 5. b3 Nf6 6. Bb2 Be7 7. O-O a6 8.
Bxd7+ Qxd7 9. d4 exd4 10. Qxd4 O-O 11. Nd5 Nxd5 *
Position (FEN): r1b2rk1/1ppqbpp1/p2p3p/3n4/3QP3/1P3N2/PBP2PPP/R4RK1 w - - 0 12
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 1044
Best move: Qxg7#