Chess puzzle (Checkmate)
Opening: Zukertort_Opening, Zukertort_Opening_Sicilian_Invitation
Moves: 1. Nf3 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qd1 a6 5. e3 Nf6 6. b3 e5 7. Bb2 d6 8. Bc4
Be6 9. Bxe6 fxe6 10. O-O Be7 11. Nc3 O-O 12. a4 Qc7 13. Qd3 d5 14. Qe2 Ng4 15.
h3 e4 16. Nd4 *
Position (FEN): r4rk1/1pq1b1pp/p1n1p3/3p4/P2Np1n1/1PN1P2P/1BP1QPP1/R4RK1 b - - 1 16
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 870
Best move: Qh2#