OK, theory question.


You did a kingside castle.

Is there a "usual" response in terms of which side I want to castle to?

Don't know if that made sense....but...

If both sides are castled, is it usual that they are directly across the board from each other: both kingside or both queenside?

Or does each side castled "opposite" each other (Black castled kingside and White castled queenside, for example) make a better game and people choose to play it that way?

Not sure if there's even an answer to this question. Obviously, if there's an immediate or long term tactical advantage to one side over the other, that's easy. But if all things are otherwise kinda equal...?