Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Normal_Defense
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. e3 c5 5. cxd5 exd5 6. Nf3 Bg4 7. a3 Nc6 8. Be2
Bd6 9. h3 Bh5 10. dxc5 Bxc5 11. b4 Bb6 12. Na4 Bc7 13. Bb2 O-O 14. Nc5 b6 15.
Na4 Re8 16. O-O Qd6 17. Bxf6 Bxf3 18. Bxf3 *
Position (FEN): r3r1k1/p1b2ppp/1pnq1B2/3p4/NP6/P3PB1P/5PP1/R2Q1RK1 b - - 0 18
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 472
Best move: Qh2#