Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 d6 3. Bc4 h6 4. Nc3 c6 5. d3 Nf6 6. Be3 Be7 7. Qe2 O-O 8. O-O-O
a5 9. b3 b5 10. Bxb5 cxb5 11. Nxb5 Nc6 12. Nd2 a4 13. bxa4 Rxa4 14. Qf3 Bg4 15.
Qg3 Bxd1 16. Bxh6 Nh5 17. Qg4 Qc8 18. Qxd1 Qa6 19. Qxh5 Qxb5 20. Bxg7 Rxa2 *
Position (FEN): 5rk1/4bpB1/2np4/1q2p2Q/4P3/3P4/r1PN1PPP/2K4R w - - 0 21
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 924
Best move: Qh8#