Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Smith-Morra_Gambit
Moves: 1. e4 c5 2. d4 Nc6 3. d5 Ne5 4. f4 Ng6 5. Nf3 e6 6. f5 N6e7 7. fxe6 dxe6 8.
dxe6 Qxd1+ 9. Kxd1 Bxe6 10. Bb5+ Nc6 11. Bf4 O-O-O+ 12. Ke2 Nb4 13. Ba4 Bc4+
14. Ke3 Nf6 15. Nc3 *
Position (FEN): 2kr1b1r/pp3ppp/5n2/2p5/Bnb1PB2/2N1KN2/PPP3PP/R6R b - - 11 15
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1603
Best move: Ng4#