Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 Bb6 6. c3 O-O 7. Bg5 d6 8. a4
a6 9. b4 Be6 10. Qb3 Qe8 11. Bxf6 gxf6 12. d4 Bxc4 13. Qxc4 exd4 14. Nbd2 Ne5
15. Qd5 dxc3 16. Nc4 Nxf3+ 17. gxf3 Kh8 18. Nxb6 Rg8+ 19. Kh1 cxb6 20. Qxd6 Rg6
21. Rg1 Rxg1+ 22. Rxg1 c2 *
Position (FEN): r3q2k/1p3p1p/pp1Q1p2/8/PP2P3/5P2/2p2P1P/6RK w - - 0 23
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 861
Best move: Qxf6#