Originally posted by bosintangwell said
The doubled white pawns on the a-rank are weak, and create an easy break-in point into white's position for black's king if the white king does not drift over there to defend them.
However, white's king has to defend against the black g-h pawns, who will win against the one lone white pawn if it's left alone to defend.
In other words, the white king ...[text shortened]... g up pawns, and also protect the g-h pawns from walking down and queening.
Make sense?