Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Marshall_Defense
Moves: 1. d4 Nf6 2. c4 d5 3. cxd5 Nxd5 4. e4 Nf6 5. Nc3 c5 6. d5 e6 7. Bc4 exd5 8.
exd5 Bd6 9. Nge2 O-O 10. O-O Nbd7 11. Ng3 Ne5 12. Bb3 Nfg4 13. h3 Qh4 14. Bf4
Nf6 15. Bxe5 Bxe5 16. Qf3 Bg4 17. Nf5 Qh5 18. hxg4 *
Position (FEN): r4rk1/pp3ppp/5n2/2pPbN1q/6P1/1BN2Q2/PP3PP1/R4RK1 b - - 0 18
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 912
Best move: Qh2#