Chess puzzle (Checkmate)
Opening: Elephant_Gambit, Elephant_Gambit_Paulsen_Countergambit
Moves: 1. e4 e5 2. Nf3 d5 3. exd5 e4 4. Nd4 Qxd5 5. c3 Nc6 6. Nxc6 Qxc6 7. Be2 Bf5 8.
Na3 Qg6 9. O-O Bh3 10. g3 O-O-O 11. Re1 Bxa3 12. bxa3 Nf6 13. Qa4 a6 14. Rb1
Nd7 15. Bxa6 bxa6 16. Rb4 Qf5 *
Position (FEN): 2kr3r/2pn1ppp/p7/5q2/QR2p3/P1P3Pb/P2P1P1P/2B1R1K1 w - - 2 17
White to move.
Themes: Queenside Attack Middlegame Mate in 1 
Puzzle rating: 1013
Best move: Qxa6#