Chess puzzle (Checkmate)
Opening: Scotch_Game, Scotch_Game_Scotch_Gambit
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. Nxd4 Bc5 6. Nxc6 bxc6 7. O-O O-O
8. Bg5 Be7 9. e5 Ne4 10. Bxe7 Qxe7 11. Bd3 d5 12. exd6 cxd6 13. Re1 d5 14. f3
Qc5+ 15. Kh1 Nf2+ 16. Kg1 Nh3+ 17. Kh1 Qg1+ 18. Rxg1 *
Position (FEN): r1b2rk1/p4ppp/2p5/3p4/8/3B1P1n/PPP3PP/RN1Q2RK b - - 0 18
Black to move.
Themes:  Middlegame Mate in 1, Smothered Mate 
Puzzle rating: 701
Best move: Nf2#