Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Kan_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 Qc7 6. Be2 b5 7. a3 Bb7 8. f3
Nf6 9. O-O Nc6 10. Kh1 h5 11. Bg5 h4 12. Nxc6 Bxc6 13. Qd2 Bc5 14. Bf4 e5 15.
Bg5 Nh5 16. Bxh4 Qd8 17. Bxd8 *
Position (FEN): r2Bk2r/3p1pp1/p1b5/1pb1p2n/4P3/P1N2P2/1PPQB1PP/R4R1K b kq - 0 17
Black to move.
Themes: Pin Middlegame Mate in 1 
Puzzle rating: 1181
Best move: Ng3#