Chess puzzle (Checkmate)
Moves: 1. Nf3 d5 2. e4 dxe4 3. Ng5 Nf6 4. d3 exd3 5. Bxd3 Bg4 6. f3 Bh5 7. g4 Bg6 8.
Bxg6 Qxd1+ 9. Kxd1 hxg6 10. Nc3 Nc6 11. Ke2 Nd4+ 12. Kd3 O-O-O 13. Nxf7 Nxf3+
14. Nxd8 Kxd8 15. Bg5 Nxg4 16. Ne4 Nxg5 17. Nxg5 Nf2+ 18. Kc4 Rh4+ 19. Kb3 Nxh1
20. Rxh1 Kc8 21. Ne6 Rh8 22. Rf1 Rh3+ 23. c3 Rxh2 24. Rxf8+ Kd7 25. Nxg7 Rh7
26. Ne8 g5 27. Rg8 g4 28. Nxc7 Kxc7 29. Rxg4 Rh6 30. Rg7 Kd6 31. Rg4 e5 32. Rg7
Kc6 33. Re7 Rh5 34. Kc4 a6 35. Kd3 b5 36. Re6+ Kd5 37. Rxa6 e4+ 38. Ke3 Rh3+
39. Kd2 e3+ 40. Ke2 Ke4 41. Re6+ Kf4 42. Re8 Rh2+ 43. Kd3 *
Position (FEN): 4R3/8/8/1p6/5k2/2PKp3/PP5r/8 b - - 7 43
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 979
Best move: Rd2#