Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 cxd4 5. Qxd4 Nc6 6. Bb5 Bd7 7. Bxc6 bxc6 8.
O-O c5 9. Qd1 Ne7 10. Bg5 Qc7 11. Bxe7 Bxe7 12. Nc3 O-O 13. h3 d4 14. Ne4 Bc6
15. Qe1 Qb7 16. Nd6 Bxd6 17. exd6 Bxf3 18. gxf3 Qxf3 19. Qe5 Qc6 20. b4 cxb4
21. Rab1 Rfd8 22. Rxb4 Rxd6 23. Rxd4 Rxd4 24. Qxd4 Qxc2 25. Rd1 Qg6+ 26. Kh2 h6
27. Rg1 Qf5 *
Position (FEN): r5k1/p4pp1/4p2p/5q2/3Q4/7P/P4P1K/6R1 w - - 2 28
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 820
Best move: Qxg7#