Chess puzzle (Checkmate)
Opening: Queens_Indian_Defense, Queens_Indian_Defense_Other_variations
Moves: 1. d4 e6 2. c4 Nf6 3. Nf3 b6 4. Nbd2 Bb7 5. e3 Bb4 6. a3 Bxd2+ 7. Bxd2 Ne4 8.
Rc1 O-O 9. Be2 d6 10. O-O Nd7 11. Bd3 f5 12. b4 g5 13. Ne1 g4 14. g3 Ng5 15. f4
*
Position (FEN): r2q1rk1/pbpn3p/1p1pp3/5pn1/1PPP1Pp1/P2BP1P1/3B3P/2RQNRK1 b - f3 0 15
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1114
Best move: Nh3#