puzzle!

Good

Solved

37 ....gxf6 38.Kf5 and after we can do pawn play why not this line?

and  in puzzle it show 38.Kf4 and why we dont take on e6? someone explain iam 1372 in rapid why i cant understand

if 38.kf5 

now it's clearly winnning 

if kxe6

now it's dead draw

hope you understand. thank you 😊