Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. g3 b6 3. Bg2 Nc6 4. e4 Bb7 5. Ne2 d5 6. Nbc3 dxe4 7. Nxe4 e6 8.
O-O Be7 9. Bg5 O-O 10. c4 Nxe4 11. Bxe7 Qxe7 12. Bxe4 Rfd8 13. Qd3 h6 14. Qf3
Qd7 15. Rfd1 Rac8 16. d5 Ne5 17. Qc3 f5 18. Qxe5 fxe4 19. Nf4 exd5 20. Nxd5
Bxd5 21. Rxd5 Qf7 22. Rad1 Re8 23. Qc3 c6 24. Rd7 Qf6 25. Qxf6 gxf6 26. Rxa7
Ra8 27. Rdd7 e3 28. fxe3 Rxa7 29. Rxa7 Rxe3 30. Rb7 Re4 31. Rxb6 Rxc4 32. b3
Rc1+ 33. Kf2 Rc2+ 34. Kg1 Rxa2 35. Rxc6 Kf7 36. Rb6 Rb2 37. b4 Kg6 38. b5 Kf5
39. Rb8 Kg4 40. b6 Kf3 41. Rf8 *
Position (FEN): 5R2/8/1P3p1p/8/8/5kP1/1r5P/6K1 b - - 2 41
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 930
Best move: Rb1#