Chess puzzle (Checkmate)
Moves: 1. Nf3 Nc6 2. c4 e5 3. Nc3 Nf6 4. e3 Bb4 5. d4 Bxc3+ 6. bxc3 d6 7. d5 Ne7 8.
Be2 c6 9. dxc6 Nxc6 10. O-O Be6 11. Ba3 Na5 12. Qxd6 Qxd6 13. Bxd6 Nxc4 14.
Bxe5 Nxe5 15. Nxe5 O-O 16. Nf3 Bg4 17. Nd4 Bxe2 18. Nxe2 b5 19. Nd4 a6 20. Rfc1
Ra7 21. c4 bxc4 22. Rxc4 a5 23. a4 h6 24. Rb1 Ne4 25. Rb2 g6 26. f3 Nd6 27. Rc5
Kg7 28. Nb5 Rb7 29. Rd2 Nxb5 30. axb5 Rfb8 31. b6 a4 32. Ra5 Rxb6 33. Rxa4 h5
34. Kf2 Kh6 35. Ra7 f6 36. h4 g5 37. hxg5+ Kxg5 38. f4+ Kf5 39. Rd5+ Kg4 40.
Ra2 Rb2+ 41. Rxb2 Rxb2+ 42. Kg1 Kg3 43. Rxh5 *
Position (FEN): 8/8/5p2/7R/5P2/4P1k1/1r4P1/6K1 b - - 0 43
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1379
Best move: Rb1#