Hi what is the solution to this endgame Fritz manages to draw by moving pawns to g4 f5 e6 is this correct? Iam not really sure about this like fritz always says never have seen this before in my life never want to see it again

The first move doesn't matter. According to this link.

Thanks for the web did not know it, but it just says draw in all moves but does not explain the idea lol

Really hard draw!

I think you have to sacrifice two pawns to advance the third to the seventh rank forcing the rook to be traded for it.

The drawing idea is to form a chain, e4, f5, g6 and have the white king guard the e3 square as well as chasing the rook from the g-file. If you play with this you realize that if the rook tries to check white, as long as white maintains the chain and either avoids the checks on by hiding f4 where it keeps the black king out or chases the rook. If black doesn't check with the rook the King guards the pawn chain base and black can't make progress. If black's King comes to e5 he may win the e pawn but then after ...g7 he's too far to help the rook stop the pawn pair. To summarise: make a chain and guard e4 and the g-file with the king. If either the black king or rook wins e4 then the capturing piece is out of position to stop the pawns. I don't think I explained it very well.

Create your pawn chain: f5, g5, g6
When the rook attacks your king from c3, back off to f2 or e2 (forcing the rook out while keeping in perfect range of the e pawn).
Perfect play by both sides from this position goes Rg3; Kf2, Ra3; Ke2, Rg3; Kf2, Ra3; Ke2...draw.
Black cannot take any pawns without losing in no more than 38 movies to perfect white play.