Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. c3 Qf6 6. Be3 Nge7 7. f4 Bxd4 8.
cxd4 d5 9. e5 Qg6 10. Nc3 O-O 11. Qd2 Bf5 12. h3 h5 13. O-O-O Nb4 14. Be2 Bb1
15. a3 Na2+ 16. Nxa2 Bxa2 17. Bd3 Qc6+ 18. Bc2 Bb3 19. g4 Bxc2 20. Qxc2 Qxc2+
21. Kxc2 g6 22. Kd3 Kh7 23. Rdf1 f5 24. exf6 Rxf6 25. f5 gxf5 26. Bg5 Rf7 27.
Bxe7 Rxe7 28. Rxf5 hxg4 29. hxg4+ Kg6 30. Rxd5 Rae8 31. Rdh5 Re3+ 32. Kc4 R8e7
33. Rb5 c6 34. Ra5 b6 35. Rah5 R7e6 36. Rh8 Kg5 37. Rg8+ Kf4 38. Rf1+ Kg3 39.
Rf7 Re2 40. Kb3 R6e3+ 41. Ka2 Rd2 42. Rxa7 Ree2 43. Kb3 Rxb2+ 44. Kc3 Rbc2+ 45.
Kd3 Red2+ 46. Ke4 Re2+ 47. Kf5 Rf2+ 48. Ke4 Rce2+ 49. Kd3 Ra2 50. g5 Rf3+ 51.
Ke4 *
Position (FEN): 6R1/R7/1pp5/6P1/3PK3/P4rk1/r7/8 b - - 2 51
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1039
Best move: Re2#