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 Qe7 6. Nc3 Nxd4 7. Qxd4 b6 8.
Bg5 Bb7 9. Bd5 Bxd5 10. Nxd5 Qxe4+ 11. Qxe4+ Nxe4 *
Position (FEN): r3kb1r/p1pp1ppp/1p6/3N2B1/4n3/8/PPP2PPP/R3K2R w KQkq - 0 12
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 882
Best move: Nxc7#