According to Stockfish, chess would be more equal without castling. (+0.4 w/castling enabled, +0.1 w/o castling) : r/chess

combinatorics - k non-attacking rooks on a chessboard with forbidden positions - Mathematics Stack Exchange

Bug the last week - Next Chess Move

First-move advantage in chess - Wikipedia

PDF) Learning to Play the Chess Variant Crazyhouse Above World Champion Level With Deep Neural Networks and Human Data

Playing Stockfish 16.0 on Elo Level 3190

Does anyone know why castling would be better option? : r/chessbeginners

Is it only possible for your engine evaluation to go DOWN during your turn? - Chess Forums

Dissecting Stockfish Part 2: In-Depth Look at a chess engine, by Antoine Champion

Bug - No castling on analysis board • page 1/2 • Lichess Feedback •