Chess puzzle (Checkmate)
Moves: 1. g3 Nf6 2. Bg2 g6 3. Nf3 Bg7 4. O-O O-O 5. d4 d5 6. c3 c6 7. b4 Bf5 8. a4
Nbd7 9. Nh4 Be6 10. Na3 Nb6 11. Qc2 Nc4 12. Nxc4 dxc4 13. b5 Bd5 14. e4 Be6 15.
e5 Nd5 16. bxc6 bxc6 17. a5 Qc7 18. Bd2 Rab8 19. Qa4 c5 20. Qxc4 Ne3 21. Qxc5
Qxc5 22. dxc5 Nxf1 23. Bxf1 Bxe5 24. Nf3 Bg7 25. Re1 Rfc8 26. Nd4 Bd7 27. Rxe7
Bxd4 28. cxd4 Bc6 29. Bd3 Rd8 30. Bf4 Rb3 31. Bc7 Rxd4 32. Bf1 Rd1 33. Be5 f6
34. Rc7 Bf3 35. Bxf6 Rxf1+ 36. Kxf1 *
Position (FEN): 6k1/p1R4p/5Bp1/P1P5/8/1r3bP1/5P1P/5K2 b - - 0 36
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 860
Best move: Rb1#