Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nc3 Nf6 3. Bc4 Nc6 4. d3 Bb4 5. Ne2 O-O 6. O-O h6 7. Be3 Ng4 8. h3
Nxe3 9. fxe3 d6 10. Ng3 a6 11. a3 Bc5 12. Qf3 Ne7 13. Rae1 Be6 14. Bxe6 fxe6
15. Qxf8+ Qxf8 16. Rxf8+ Kxf8 17. Kf2 Kg8 18. Ke2 Ng6 19. Rf1 Nh4 20. Rf2 c6
21. Na4 Ba7 22. b4 b5 23. Nb2 Bb6 24. Nf1 a5 25. g3 Ng6 26. c3 axb4 27. axb4
Ra2 28. Kf3 Ra3 29. Rc2 Ra1 30. Ke2 d5 31. exd5 exd5 32. d4 e4 33. Nd1 Ne7 34.
Rd2 Bc7 35. Kf2 Nf5 36. h4 Nd6 37. Ke1 Nc4 38. Re2 Kh7 39. Rf2 Kg6 40. Rc2 Kh5
41. Rf2 Kg4 42. Rf7 Bxg3+ 43. Nxg3 Kxg3 44. Rxg7+ Kxh4 45. Ke2 Ra2+ 46. Ke1 h5
47. Rg6 Ra6 48. Ke2 Kh3 49. Kf1 Nd2+ 50. Ke2 Nf3 51. Nf2+ Kh2 52. Kf1 Ra1+ 53.
Ke2 Ra2+ 54. Kf1 h4 *
Position (FEN): 8/8/2p3R1/1p1p4/1P1Pp2p/2P1Pn2/r4N1k/5K2 w - - 0 55
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1439
Best move: Rg2#