Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Marshall_Defense
Moves: 1. d4 d5 2. c4 Nf6 3. Nc3 Bf5 4. Qb3 b6 5. cxd5 e6 6. e4 Nxe4 7. Bb5+ Ke7 8.
Nxe4 Bxe4 9. Qb4+ Kf6 10. Qd2 Bxd5 *
Position (FEN): rn1q1b1r/p1p2ppp/1p2pk2/1B1b4/3P4/8/PP1Q1PPP/R1B1K1NR w KQ - 0 11
White to move.
Themes:  Opening Mate in 1 
Puzzle rating: 950
Best move: Qg5#