Chess puzzle (Checkmate)
Opening: Queens_Gambit_Accepted, Queens_Gambit_Accepted_Old_Variation
Moves: 1. d4 d5 2. c4 dxc4 3. e3 Bf5 4. Bxc4 e6 5. Qb3 b6 6. Nf3 Nc6 7. Bb5 Qd6 8. Ne5
Ne7 9. O-O O-O-O 10. Ba4 Nxe5 11. dxe5 Qxe5 12. Nc3 Ng6 13. Qc4 Bd3 14. Qc6 Bd6
*
Position (FEN): 2kr3r/p1p2ppp/1pQbp1n1/4q3/B7/2NbP3/PP3PPP/R1B2RK1 w - - 6 15
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1158
Best move: Qa8#