Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Chigorin_Variation
Moves: 1. Nf3 Nc6 2. d4 d5 3. c4 dxc4 4. e4 Nf6 5. Nc3 e5 6. d5 Nxd5 7. exd5 Nb4 8.
Bg5 f6 9. Bd2 c6 10. Bxc4 Nd3+ 11. Bxd3 cxd5 12. O-O Bd6 13. Bb5+ Bd7 14. Bxd7+
Qxd7 15. Nxd5 e4 16. Nd4 Qg4 17. Nc7+ Bxc7 18. Bb4 Qf4 19. Ne6 *
Position (FEN): r3k2r/ppb3pp/4Np2/8/1B2pq2/8/PP3PPP/R2Q1RK1 b kq - 3 19
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 833
Best move: Qxh2#