improving solution for Problm #U6g3P after F4 there is a mat in 6 move

1... Bd6+ 2.f4 Qxf4+ 3.Kg1 Qh2+ 4.Kf1 fxg4+ 5.Bf3 Qh1+ 6.Kf2 g3#

can you update the solution ?

Rook is guarding f4.

your are right
my rook on my chessboard was not corrected spoted (e1 instead of f1)