Chess puzzle (Checkmate)
Moves: 1. f4 Nc6 2. Nf3 d5 3. g3 Bg4 4. Bg2 Nf6 5. O-O e6 6. d3 Bc5+ 7. Kh1 d4 8. c4
O-O 9. Na3 a6 10. Nc2 Rb8 11. Bd2 h6 12. b3 a5 13. a4 Bb4 14. Nxb4 Nxb4 15.
Bxb4 axb4 16. h3 Bxf3 17. Bxf3 c5 18. g4 Nh7 19. Qe1 b6 20. Qg3 g5 21. f5 exf5
22. gxf5 f6 23. h4 Kh8 24. Bh5 Qd7 25. Rf2 Qb7+ 26. Kh2 Rbc8 27. Bg6 Qc7 28.
Bxh7 Qxg3+ 29. Kxg3 Kxh7 30. a5 Ra8 31. a6 Ra7 32. hxg5 fxg5 33. f6 Kg6 34.
Raf1 Rxa6 35. f7 Kg7 36. Rf6 Ra2 37. R1f2 Rxe2 38. Rxb6 Re7 39. Rff6 Rexf7 40.
Rg6+ Kh7 41. Rxh6+ Kg7 *
Position (FEN): 5r2/5rk1/1R5R/2p3p1/1pPp4/1P1P2K1/8/8 w - - 1 42
White to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 964
Best move: Rbg6#