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

Is castling in chess possible when the king is in check and there are no moves left without castling? - Quora

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

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

Stockfish avengers Humanity against chess.com max engine(3200), King's gambit

Castling, Smallfish Chess Wiki

AlphaZero plays attacking chess, like Tal. Does this demonstrate that, all else being equal, attacking chess is better than prophylactic chess like Petrosian's or Karpov's? - Quora

engines - How to get static evaluation from Stockfish in case that a king is in check? - Chess Stack Exchange

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

rules - How is white allowed to castle 0-0-0 in this position? - Chess Stack Exchange

Castling, Smallfish Chess Wiki

Is castling in chess possible when the king is in check and there are no moves left without castling? - Quora

Why is Stockfish willing to give up the queen? I played the lines later and it seems that I can save it without having a worse outcome. : r/chess

Wrong evaluation for triple repetition? · Issue #3542 · official-stockfish/ Stockfish · GitHub