Chess puzzle (Checkmate)
Opening: Kings_Indian_Defense, Kings_Indian_Defense_Normal_Variation
Moves: 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6 5. e4 Nc6 6. Bd3 e5 7. d5 Ne7 8. Be3
Ng4 9. Bd2 O-O 10. h3 Nf6 11. O-O Ne8 12. Nh2 f5 13. f4 exf4 14. Bxf4 Bd4+ 15.
Kh1 Nf6 16. Qc2 Nh5 17. Bh6 *
Position (FEN): r1bq1rk1/ppp1n2p/3p2pB/3P1p1n/2PbP3/2NB3P/PPQ3PN/R4R1K b - - 6 17
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 799
Best move: Ng3#