Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3 Bb4 7. f3 O-O 8.
Qd3 d5 9. Bd2 d4 10. Ne2 Bxd2+ 11. Qxd2 Be6 12. O-O-O a5 13. Kb1 a4 14. Nc5 Qc8
15. Nxe6 Qxe6 16. g4 b5 17. Ng3 b4 18. g5 Nd7 19. h4 b3 20. a3 Rfb8 21. c3 Rd8
22. Bh3 Qe8 23. Nf5 Nc5 24. cxd4 Nxd4 25. Nxd4 exd4 26. Qb4 Ne6 27. Bxe6 Qxe6
28. Rxd4 Rdc8 29. Rhd1 Qh3 30. Qe7 Rf8 31. e5 Qxf3 32. Rd7 Rac8 33. h5 Qf5+ 34.
Ka1 Qc2 35. Rb1 Qf5 36. g6 hxg6 37. hxg6 Qxg6 38. Ra7 Rfd8 39. Rxa4 Qxb1+ 40.
Kxb1 *
Position (FEN): 2rr2k1/4Qpp1/8/4P3/R7/Pp6/1P6/1K6 b - - 0 40
Black to move.
Themes:  Endgame, Queen and Rook Endgame Mate in 1 
Puzzle rating: 689
Best move: Rd1#