that is true
This is one of the most common mistakes. I call what white played “The Nelson Tactic”
a) 1. Control the center:
a better term might be who "holds" the center. because that "hold" can be liquidated. that is the basis of hypermodern play. sometimes the center is "held" by both players at the same time. The Checz Benoni would be an example.
every opening is an example of both sides staking a claim in the center. these squares being contested is a term that we call "tension". this tension can theoretically last indefinitely. but generally one player initiates the release of that tension at a time, and in a way, in the game which is good for them.
b) 10. pushing the f pawn:
the purpose of pushing the f pawn is to
a) initiate a pawn break
b) support a central pawn push
or c) to further a king side attack.
one precaution that you can look for before an f pawn push is this. we will use f2 on the white side for the example.
after the white king is castled, if white plays f2 to f3 or f4, it opens up the a7 to g1 diagonal. this is a dark square diagonal. if your opponents DQB is no longer on the board, his Queen is the only piece that can check you along that diagonal. if your opponents Queen has no safe square(s) on that diagonal, it is generally safer to make the f pawn push.
Thanks for starting this thread. Very useful information