Game 2, KW's Own Game Analysis, Attempting to Help GW Understand Control of the Center
[June 3rd 2011]

3. f4

White decides on the Stonewall Attack. The Stonewall can be a powerful attack; however, it creates a Weak Square Complex - White has 5 pawns on dark squares, and 3 of which have advanced in the Center. On e4, White no longer has a pawn that can defend it.

Ken Wilsdon's Center Domination example, Game 2, June 3rd 2011

I suppose you could argue, the Pawns that advance, creating the series of Holes (e.g. the light squares, as when White - fatjonny - played 1. d4, 2. e3, 3. f4) develop the "Weak Squares" and the potential for the Weak Square Complex, but that only becomes a reality if/when the Bishop of that color (the dark Bishop, in fatjonny's case) gets captured (30. ... Rxb2)?

3. ... Nf6
Immediately attacking the hole on e4; Black begins to concentrate his attack on White's light squares; Note how in the first half of this game, most of the Black pawns and pieces attack the light squares.