> This site teaches chess in words. > It assumes you know only how the pieces move and builds step-by-step from there. Do not get me wrong: TFA is a fine and useful book for an intermediate player but the above claims are overselling it. They are equivalent to telling you that learning the x ^= y; y ^= x; x ^= y; trick will make you a better programmer while being silent on what copy-and-paste programming, magic cons…
It's all well and good controlling the centre, putting rooks on open files, co-ordinating your bishop pair, keeping a strong pawn structure, etc., but if you leave your pieces vulnerable to tactics that your opponent can find and you can't, then it's all for nought. That's why tactics can be considered more important than strategy. Strategy becomes more important only when neither player is making tactical blunders.
In my book, {avoiding hanging pieces, placing your pieces so that the opponent cannot pin them} ⊂ strategy, being wary of forks ∈ tactics.