Chess puzzle (Checkmate)
Moves: 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. Bc4 c6 5. d3 Nf6 6. h3 Bf5 7. Nf3 e6 8. Nh4
Bg6 9. Nxg6 hxg6 10. Bg5 Bb4 11. Qf3 Bxc3+ 12. bxc3 Nbd7 13. Rb1 Nb6 14. Bb3
Rh5 15. h4 Nbd7 16. g4 Rh8 17. Qe3 Qa5 18. Qg3 Qxc3+ 19. Bd2 Qe5+ 20. Qxe5 Nxe5
21. g5 Nfd7 22. Ba4 b5 23. Bb3 Nf3+ 24. Ke2 Nxd2 25. Kxd2 Ke7 26. Ke3 Ne5 27.
Kf4 Nd7 28. Kg3 a5 29. a4 b4 30. Rhe1 Rac8 31. Rbc1 Kd6 32. c4 c5 33. Bd1 Rhe8
34. Bf3 Ne5 35. Be4 f5 36. gxf6 gxf6 37. f4 Nd7 38. Bxg6 Rg8 39. h5 Nf8 40. Re2
Nxg6 41. hxg6 Rxg6+ 42. Kf3 Rh8 43. Ke3 Rh3+ 44. Kd2 f5 45. Rce1 Rf3 46. Rh2
Rxf4 47. Rh8 Rg2+ 48. Kd1 Rd4 49. Ra8 Rxd3+ 50. Kc1 Rc3+ 51. Kd1 Rxc4 52. Ra6+
Kd5 53. Rexe6 b3 *
Position (FEN): 8/8/R3R3/p1pk1p2/P1r5/1p6/6r1/3K4 w - - 0 54
White to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1234
Best move: Rad6#