Chess puzzle (Checkmate)
Moves: 1. d4 g6 2. e4 Bg7 3. Nc3 c6 4. Be3 d5 5. f3 dxe4 6. fxe4 Nf6 7. h3 b5 8. e5
Nd5 9. Nxd5 Qxd5 10. c3 O-O 11. Qf3 a6 12. Qxd5 cxd5 13. Nf3 Nc6 14. a3 Rb8 15.
Bd3 Bf5 16. Kd2 Bxd3 17. Kxd3 Na5 18. Rae1 Rfc8 19. Nd2 e6 20. g4 Nc4 21. Nxc4
dxc4+ 22. Ke4 a5 23. Bd2 Bf8 24. h4 b4 25. axb4 axb4 26. h5 bxc3 27. bxc3 Rb2
28. Re2 Bh6 29. Rhh2 Bxd2 30. Rxd2 Rb3 31. Rc2 g5 32. h6 f6 33. exf6 Kf7 34.
Ke5 Rd8 35. Rhf2 Rd5+ 36. Ke4 Rb1 37. Ra2 Re1+ 38. Kf3 Kxf6 39. Kg3+ Kg6 40.
Ra7 Re3+ 41. Kg2 Rxc3 42. Raf7 Rxd4 *
Position (FEN): 8/5R1p/4p1kP/6p1/2pr2P1/2r5/5RK1/8 w - - 0 43
White to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 797
Best move: R7f6#