Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 cxd4 5. cxd4 Nc6 6. Nf3 Bb4+ 7. Nc3 Qb6 8. a3
Bxc3+ 9. bxc3 a6 10. Be3 Nge7 11. Rb1 Qc7 12. Qa4 O-O 13. Bd3 Bd7 14. Qc2 g6
15. Bh6 Rfc8 16. Qd2 Nf5 17. g4 Nxh6 18. Qxh6 Be8 19. Ng5 f5 20. Nxe6 Qe7 21.
gxf5 Nd8 22. Rxb7 Qxb7 *
Position (FEN): r1rnb1k1/1q5p/p3N1pQ/3pPP2/3P4/P1PB4/5P1P/4K2R w K - 0 23
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1549
Best move: Qf8#