Chess puzzle (Checkmate)
Opening: English_Defense, English_Defense_Other_variations
Moves: 1. d4 e6 2. c4 b6 3. g3 Bb7 4. Nf3 Qf6 5. Bg2 Nc6 6. O-O O-O-O 7. a4 h6 8. a5
Nxa5 9. b4 Nxc4 10. Rxa7 Bxb4 11. Qa4 Ba5 12. Nbd2 Nxd2 13. Bxd2 Bxd2 14. Ra8+
Bxa8 *
Position (FEN): b1kr2nr/2pp1pp1/1p2pq1p/8/Q2P4/5NP1/3bPPBP/5RK1 w - - 0 15
White to move.
Themes: Queenside Attack Middlegame Mate in 1 
Puzzle rating: 1244
Best move: Qxa8#