Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 e6 3. Nc3 c5 4. Nf3 cxd4 5. Nxd4 Nc6 6. cxd5 exd5 7. e3 Nf6 8.
Bd3 Bb4 9. O-O O-O 10. a3 Bd6 11. b4 Qc7 12. Nf3 Bg4 13. h3 Bxf3 14. Qxf3 Rae8
15. Nxd5 Nxd5 16. Qxd5 Rd8 17. Qf3 Ne5 18. Bxh7+ Kxh7 19. Qh5+ Kg8 20. Bb2 Ng6
21. f4 Qe7 22. Bd4 Qh4 23. Qf3 Rfe8 24. Rae1 Qe7 25. f5 Nh4 26. Qg4 Qc7 *
Position (FEN): 3rr1k1/ppq2pp1/3b4/5P2/1P1B2Qn/P3P2P/6P1/4RRK1 w - - 3 27
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 721
Best move: Qxg7#