Chess puzzle (Checkmate)
Moves: 1. e4 d5 2. exd5 Nf6 3. Nc3 Nxd5 4. Bc4 c6 5. Nf3 Bg4 6. h3 Bh5 7. d4 e6 8. Be3
Bb4 9. Qd3 Nd7 10. Bg5 Be7 11. Bxe7 Nxe7 12. O-O O-O 13. Ne4 Bg6 14. Rfe1 b5
15. Bb3 a6 16. Nh4 Rc8 17. Nxg6 Nxg6 18. c3 a5 19. a4 Nde5 20. Qe3 Nc4 21. Bxc4
bxc4 22. Qe2 Qd5 23. g3 Rfd8 24. f4 Ne7 25. Nd2 Nf5 26. Kh2 c5 27. Qxc4 cxd4
28. Qxd5 Rxd5 29. c4 Rdc5 30. b3 Ne3 31. Rab1 e5 32. fxe5 Rxe5 33. Nf3 Rf5 34.
Nxd4 Rf2+ 35. Kh1 Nf5 36. Nxf5 Rxf5 37. Kg2 h5 38. Rbc1 Rd8 39. c5 Rd2+ 40. Kg1
Rff2 41. c6 Rg2+ 42. Kf1 *
Position (FEN): 6k1/5pp1/2P5/p6p/P7/1P4PP/3r2r1/2R1RK2 b - - 2 42
Black to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 876
Best move: Rdf2#