Chess puzzle (Checkmate)
Opening: Ruy_Lopez, Ruy_Lopez_Vinogradov_Variation
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Qe7 4. O-O a6 5. Ba4 b5 6. Bb3 Bb7 7. c3 O-O-O 8. a4
bxa4 9. Bxa4 d5 10. Bxc6 Bxc6 11. Rxa6 Bb7 12. Ra5 dxe4 13. Nxe5 Qf6 14. Qa4
Bd6 15. Ra8+ Bxa8 *
Position (FEN): b1kr2nr/2p2ppp/3b1q2/4N3/Q3p3/2P5/1P1P1PPP/1NB2RK1 w - - 0 16
White to move.
Themes: Queenside Attack Opening Mate in 1 
Puzzle rating: 1223
Best move: Qxa8#