Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Marshall_Defense
Moves: 1. d4 Nf6 2. c4 d5 3. Nc3 dxc4 4. e4 Nc6 5. e5 Nd5 6. Bxc4 Nxc3 7. bxc3 Na5 8.
Qa4+ Nc6 9. Bb5 Bd7 10. Nf3 e6 11. O-O a6 12. Bd3 Nxe5 13. Qc2 Nxf3+ 14. gxf3
Bd6 15. Bxh7 Bxh2+ 16. Kg2 Qh4 17. Be4 Bg3 18. fxg3 *
Position (FEN): r3k2r/1ppb1pp1/p3p3/8/3PB2q/2P2PP1/P1Q3K1/R1B2R2 b kq - 0 18
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 801
Best move: Qh2#