Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Marshall_Defense
Moves: 1. d4 Nf6 2. c4 d5 3. cxd5 Nxd5 4. Nc3 e6 5. e3 Bb4 6. Bd2 O-O 7. Nf3 c5 8. a3
Ba5 9. dxc5 Qe7 10. b4 Bc7 11. Bc4 Nf6 12. O-O b6 13. cxb6 Bxb6 14. Qc2 Bb7 15.
Ne5 Nbd7 16. Nxd7 Qxd7 17. Rad1 Qc6 18. Bb5 *
Position (FEN): r4rk1/pb3ppp/1bq1pn2/1B6/1P6/P1N1P3/2QB1PPP/3R1RK1 b - - 3 18
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 411
Best move: Qxg2#