Chess puzzle (Checkmate)
Opening: Scotch_Game, Scotch_Game_Schmidt_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bg5 h6 7. Bxf6 Qxf6 8.
Ne2 O-O 9. a3 Bc5 10. f3 Ne5 11. Nd5 Qxf3 12. gxf3 *
Position (FEN): r1b2rk1/pppp1pp1/7p/2bNn3/4P3/P4P2/1PP1N2P/R2QKB1R b KQ - 0 12
Black to move.
Themes:  Opening Mate in 1 
Puzzle rating: 970
Best move: Nxf3#