White to promote a pawn and win

Note this breakthrough can be done with 4 pawns:
It's also important to note just exactly how far away the kings need to be for this to work, am unsure about the exact number of squares.
Note this breakthrough can be done with 4 pawns:
It's also important to note just exactly how far away the kings need to be for this to work, am unsure about the exact number of squares.
And perhaps it is even more important to note that every white move wins. Not that exciting for a presumed puzzle!