Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Bf4 c5 3. c3 cxd4 4. cxd4 Nc6 5. e3 f6 6. Nc3 e5 7. dxe5 fxe5 8.
Bg3 Nf6 9. Nf3 Bg4 10. Be2 Bd6 11. h3 Bh5 12. O-O Bc7 13. Bh4 Qd6 14. Bxf6 Qxf6
15. Nxd5 Qd8 16. Nxc7+ Qxc7 17. Rc1 O-O 18. Qb3+ Kh8 19. Rfe1 Qd7 20. Nxe5 Nxe5
21. Bxh5 Qf5 22. Be2 Qxf2+ 23. Kh1 Qg3 24. Qxb7 Rab8 25. Qxa7 Rxb2 26. Rf1
Rxf1+ 27. Rxf1 h6 28. Bd1 *
Position (FEN): 7k/Q5p1/7p/4n3/8/4P1qP/Pr4P1/3B1R1K b - - 1 28
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 909
Best move: Qxg2#