1-K-G3 G4
2-KxG4 G5
3-R-F1 K-G6
4-RH-F7 any move
5- RF1-F6#
If 2- R-B7
3- RxB7 R-c7
4-RxC7 G5
5-K-A5 any move
6-R-F1 #
Sorry, it's been a while since I wrote chess move.
RE: 💡Can YOU Solve It? Double Rook Ending - Mate In 6 💡