Chess puzzle (Checkmate)
Opening: Russian_Game, Russian_Game_Nimzowitsch_Attack
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 O-O
8. Qd2 a6 9. O-O-O b5 10. Kb1 Nd7 11. h4 Bb7 12. h5 h6 13. Nd4 Nf6 14. f3 c6
15. Nf5 Nd5 16. Bxh6 gxh6 17. Qxh6 Bg5 *
Position (FEN): r2q1rk1/1b3p2/p1pp3Q/1p1n1NbP/8/2P2P2/PPP3P1/1K1R1B1R w - - 1 18
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 856
Best move: Qg7#