Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Ragozin_Defense
Moves: 1. d4 e6 2. c4 d5 3. Nf3 Nf6 4. Nc3 Bb4 5. Bg5 h6 6. Bxf6 Qxf6 7. cxd5 exd5 8.
Qb3 Nc6 9. e3 Bg4 10. Be2 O-O 11. Qxd5 Rad8 12. Qb3 Rfe8 13. O-O Qg6 14. Kh1
Qh5 15. Rac1 Be7 16. Qxb7 Bd6 17. Ne5 Nxe5 18. dxe5 Bxe5 19. Bxg4 *
Position (FEN): 3rr1k1/pQp2pp1/7p/4b2q/6B1/2N1P3/PP3PPP/2R2R1K b - - 0 19
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 831
Best move: Qxh2#