Chess puzzle (Checkmate)
Moves: 1. d4 c6 2. e4 d5 3. e5 c5 4. c3 cxd4 5. cxd4 Nc6 6. Nf3 Bg4 7. Bb5 e6 8. Qd3
Bf5 9. Qb3 Ne7 10. Nc3 a6 11. Be2 Ng6 12. Bg5 Be7 13. Bxe7 Qxe7 14. Qa3 O-O 15.
Qxe7 Ngxe7 16. O-O Bg4 17. h3 Bxf3 18. Bxf3 Nxd4 19. Be2 Nxe2+ 20. Nxe2 Nc6 21.
f4 f6 22. exf6 Rxf6 23. b3 b5 24. Rad1 b4 25. g3 a5 26. Rfe1 a4 27. Nd4 Nxd4
28. Rxd4 axb3 29. axb3 Rb8 30. Ra1 Kf7 31. Ra4 Rg6 32. Kg2 e5 33. Rdxb4 Rxb4
34. Rxb4 exf4 35. Rxf4+ Rf6 36. Rb4 Ke6 37. Rb6+ Ke5 38. Rb7 d4 39. Rxg7 Rb6
40. Re7+ Kd6 41. Rxh7 Rxb3 42. Rh4 d3 43. Kf2 Ke5 44. Ke3 d2+ 45. Kxd2 Rxg3 46.
Rh8 Kf4 47. Ke2 Rg2+ 48. Kf1 Rh2 49. Kg1 Rc2 50. h4 Kg3 51. h5 *
Position (FEN): 7R/8/8/7P/8/6k1/2r5/6K1 b - - 0 51
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1065
Best move: Rc1#