Chess puzzle (Checkmate)
Opening: Philidor_Defense, Philidor_Defense_Other_variations
Moves: 1. e4 e5 2. Nf3 d6 3. Bc4 h6 4. h3 Qf6 5. Nc3 c6 6. d4 Ne7 7. dxe5 dxe5 8. b3
Ng6 9. Bb2 Nf4 10. O-O Bxh3 11. gxh3 Qg6+ 12. Kh2 *
Position (FEN): rn2kb1r/pp3pp1/2p3qp/4p3/2B1Pn2/1PN2N1P/PBP2P1K/R2Q1R2 b kq - 2 12
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 615
Best move: Qg2#