If You Could Change One Rule In Chess, What Would It Be?

There was a complicated evolution of its rules though the centuries. But given the current rules I don't think there's any need to change anything.

@Jessicamel
You answer your own question first.
personally, I could eliminate en passant, eliminate touch move from slow games, make pawns only go one square on the first move, etc. If oy had a buzzer so you could give your opponent electrical shocks, but only 3 shocks pr game

For me, it'd be the notion of not being able to castle while the king moves over a space which is attacked. The king should be able to castle over this attacked space - it's not the opponent's turn and just being visible to attack during a move doesn't mean the opponent has an opportunity to somehow nix the king.

If I were to suggest changing one rule of chess, it would be to allow for a limited number of "resets" or "mulligans" during a game. This would give players the option to undo their last move a certain number of times per game, perhaps once or twice, to correct a mistake or explore different strategic possibilities without the fear of making an irreversible blunder.
This change could potentially make the game more forgiving to beginners or casual players, as well as add an interesting tactical element for more experienced players who would need to carefully consider when to use their resets. It could also lead to more dynamic and creative gameplay as players might take more risks knowing they have a safety net to fall back on.
However, this change would certainly alter the nature of chess significantly and could be controversial among purists who value the game's current strict rules and emphasis on foresight and planning.

I’d give the king and rook more options when castling. Like:
Ke1 to f1,g1, or h1 with rook on e1,f1, or g1 as long as the rook moves to the other side of the king.

Instead of picking one player ahead of time to be white and go first, have Player 1 make a move for white. Then, Player 2 gets to decide which color they want to play as.This rule leads to fairer games, as Player 1 will have an incentive to make an opening move just strong enough for the game to be balanced.
The pie rule is based on the principle of sharing a pie between two people; have one person cut, and the other decide which piece they want. The great thing is that it works for almost any game, not just chess.

Fischer Ramdom chess would do that. For those not familiar, Fisher random or Chess960 was proposed by former World Champion Bobby Fischer and involves rearranging the starting positions of the pieces on the back rank, at random, each time, yielding 960 possible starting positions. With the proposal being to retain opposite colour bishops and castling.


Black's best move in the above position is 1...Rd7+. White checkmates 545 moves later.
50 Move rule.
The Rule:
The fifty-move rule in chess states that a player can claim a draw if no capture has been made and no pawn has been moved in the last fifty moves (for this purpose a "move" consists of a player completing his turn followed by his opponent completing his turn).
There are many endgame positions where one side can win theoretically in more than 50 moves.

#14
I’d abandon the “new” algebraic notation, and go back to the old descriptive notation.
“e4 e5” just isn’t as poetic as “P-K4 P-K4”.
And it’s harder to visualize what is going on.

Make a rule saying, "Black moves first. If White hurries and moves before Black, the Sun will become Dark.

I’d prefer to change something that would make the game more interesting and fun. I’m fine with en passant, but anyway, not sure about the rule change though. Thanks
Personally i think Chess is the best game excercise for brains. Chess was created very intelligently (a hundred of years ago). The rules are very properly and meticulously designed and all the pieces are placed properly according to the rules. According to me there can not be and need not be any alteration in the game of chess. But if you were given the opportunity to change a rule, what would it be?