Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nf3 c5 3. c4 e6 4. cxd5 exd5 5. Bg5 Nf6 6. Nc3 Be6 7. e3 a6 8. a4
Nc6 9. Be2 Rc8 10. Ne5 Be7 11. O-O Nxe5 12. dxe5 Nd7 13. Bxe7 Qxe7 14. f4 O-O
15. e4 dxe4 16. Nxe4 Rcd8 17. Qc2 f5 18. exf6 Nxf6 19. Ng5 g6 20. Bc4 Bxc4 21.
Qxc4+ Kh8 22. Rae1 Qd7 23. Kh1 Rde8 24. Rd1 Qc6 25. Nf7+ Kg7 26. Ne5 Qc7 27. h3
b5 28. axb5 axb5 29. Qxb5 Rb8 30. Qc4 Rxb2 31. Ng4 Rb4 32. Qc3 Rxf4 33. Rxf4
Qxf4 34. Nxf6 Rxf6 35. Rd7+ Kh6 36. Qxc5 Qg3 37. Qc1+ g5 38. Rd1 Rf2 39. Rd7 *
Position (FEN): 8/3R3p/7k/6p1/8/6qP/5rP1/2Q4K b - - 3 39
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 840
Best move: Qxg2#