Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bf4 Bf5 5. Nc3 e6 6. e3 Bd6 7. Bd3 Bxd3 8.
Qxd3 Bxf4 9. exf4 a6 10. Nf3 Nc6 11. f5 Nf6 12. fxe6 fxe6 13. a3 O-O 14. Ne5
Nxe5 15. dxe5 Nd7 16. Qg3 Qc7 17. O-O Qxe5 18. Qxe5 Nxe5 19. Rad1 Rae8 20. Rfe1
Nd3 21. Rxd3 b5 22. Rde3 d4 23. Rxe6 Rxe6 24. Rxe6 dxc3 25. bxc3 Ra8 26. f4 Kf7
27. Rd6 Ra7 28. g3 h6 29. Kf2 Ke7 30. Rg6 Kf7 31. Rd6 a5 32. Rb6 b4 33. cxb4
axb4 34. axb4 Ra2+ 35. Kg1 Rb2 36. Rb7+ Kf6 37. b5 g5 38. fxg5+ hxg5 39. b6 Kf5
40. Rb8 Kg4 41. b7 Rb3 42. h3+ Kxg3 43. h4 *
Position (FEN): 1R6/1P6/8/6p1/7P/1r4k1/8/6K1 b - - 0 43
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1063
Best move: Rb1#