Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Nimzowitsch_Variation
Moves: 1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. Nc3 Nf4 5. d3 Nc6 6. Bxf4 g6 7. Ne2 Bg7 8. c3
d6 9. exd6 e5 10. Be3 Qxd6 11. Qa4 Bd7 12. Qb3 O-O 13. g3 Qxd3 14. Rd1 Qf5 15.
Qxb7 Qxf3 16. Rg1 Nd4 17. Qxf3 *
Position (FEN): r4rk1/p2b1pbp/6p1/2p1p3/3n4/2P1BQP1/PP2NP1P/3RKBR1 b - - 0 17
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 942
Best move: Nxf3#