The Castling Theory
You should castle when you have no better option.
Here's a rated match game where I castled on move 27.
Maybe also when you have more than one better option which are mutually exclusive. That makes it a waiting move.
🎯 The Castling Theory
💡 Principle: Castle after the opponent’s queen is gone
⚡ Why: Safe king + faster development + better tactical opportunities
🏆 By: Gaurav
If there are no other option and u can get a checkmate, u must castle instant of waiting for queen trade but if there is no worrys about checkmate,, this theory is useful.
I support building castles. It keeps the Nordic rabble at bay, along with my untrustworthy neighbors the Burgundians, Saxons, Frisians, and all that nonsense across the Rhine. Because I play 1.e4 gambits I also follow the rule castle early--castle often. If I were playing openings that were closed or semi-open, I could be more flexible in when or even if I castled, but in games in which there may be a completely open center, not castling is very risky.