Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Baltic_Defense
Moves: 1. d4 d5 2. c4 Bf5 3. Nc3 e6 4. Nf3 Bb4 5. cxd5 Qxd5 6. Bd2 Bxc3 7. Bxc3 Ne7 8.
e3 O-O 9. b3 Qd7 10. Ne5 Qd8 11. Be2 f6 12. Ng4 Bxg4 13. Bxg4 Qd6 14. O-O f5
15. Bf3 c6 16. Qe2 Rf6 17. d5 Rh6 18. dxc6 *
Position (FEN): rn4k1/pp2n1pp/2Pqp2r/5p2/8/1PB1PB2/P3QPPP/R4RK1 b - - 0 18
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 784
Best move: Qxh2#