Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O d6 5. c3 Qe7 6. d4 Bb6 7. Bg5 Nf6 8. d5
Nb8 9. a4 a6 10. Nbd2 h6 11. Bh4 g5 12. Bg3 Bg4 13. Qc2 Nh5 14. a5 Ba7 15. Qa4+
Nd7 16. b4 O-O 17. Qc2 Kh8 18. Be2 Ndf6 19. Nc4 Nf4 20. Bxf4 gxf4 21. Rfe1 Rg8
22. Kf1 Rg7 23. Ng1 Rag8 24. f3 Bd7 25. Bd3 Rxg2 26. Qxg2 Rxg2 27. Kxg2 Nh7 28.
Ne2 Qh4 29. Kh1 Ng5 30. Ng1 Qh5 31. Be2 Bb5 32. Rf1 Nxe4 33. fxe4 Qg6 34. Nd2
Be3 35. Bxb5 axb5 36. Ngf3 Bxd2 37. Nxd2 f5 38. Rg1 Qh7 39. Rae1 fxe4 40. Nxe4
Qf5 41. c4 bxc4 42. b5 f3 43. Rgf1 c3 44. a6 bxa6 45. bxa6 Qg4 46. a7 *
Position (FEN): 7k/P1p5/3p3p/3Pp3/4N1q1/2p2p2/7P/4RR1K b - - 0 46
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 785
Best move: Qg2#