Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. h3 Be7 5. Nc3 a6 6. Ba4 b5 7. Bb3 Na5 8. Nd5
Nxb3 9. axb3 Nf6 10. Nxe7 Qxe7 11. d3 h6 12. Qe2 Bb7 13. g4 Nh7 14. c4 O-O 15.
h4 f6 16. h5 Ng5 17. Nh4 Qe6 18. Ng6 Rfd8 19. f4 exf4 20. Bxf4 c6 21. Nh4 d5
22. exd5 Qxe2+ 23. Kxe2 cxd5 24. Rhe1 d4 25. Bxg5 fxg5 26. Nf5 Kh7 27. Kf2 Bc8
28. Re5 Rf8 29. cxb5 Bxf5 30. Rxf5 axb5 31. Rxa8 Rxa8 32. Rxb5 Ra2 33. Rb4
Rxb2+ 34. Kf3 g6 35. Rb7+ Kg8 36. hxg6 Rd2 37. Ke4 Rg2 38. Kf5 Rd2 39. Kf6 Rxd3
*
Position (FEN): 6k1/1R6/5KPp/6p1/3p2P1/1P1r4/8/8 w - - 0 40
White to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 1041
Best move: Rb8#