Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Colle_System
Moves: 1. d4 d5 2. Nf3 Nf6 3. e3 Nc6 4. Bd3 Bg4 5. Nbd2 e5 6. dxe5 Nxe5 7. Be2 Nxf3+
8. Nxf3 c6 9. O-O Bd6 10. h3 Bf5 11. b3 Qe7 12. Bb2 O-O-O 13. c3 Rhg8 14. Bd3
Be4 15. Bxe4 dxe4 16. Nd2 Bc7 17. Qe2 Qd6 18. Nc4 *
Position (FEN): 2kr2r1/ppb2ppp/2pq1n2/8/2N1p3/1PP1P2P/PB2QPP1/R4RK1 b - - 5 18
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 878
Best move: Qh2#