Chessy
In over-the-board play, if you touch one of your own pieces you must move it if a legal move exists, and if you touch an enemy piece you must capture it if a legal capture is available.
On this page
Why the rule exists
The touch-move rule keeps games fair and decisive by preventing players from testing out moves with their hands and changing their minds mid-thought. It forces players to visualize their moves mentally before committing physically, which is a core part of over-the-board discipline in serious chess.
What happens if there's no legal move
If you touch a piece and it has no legal move at all, the touch is simply ignored and you're free to move any other piece. Similarly, if you touch an enemy piece but capturing it isn't legal in that position, you're not forced to make an illegal capture — you just move on and choose any legal move instead.
Adjusting a piece: J'adoube
There's a built-in exception for straightening pieces on their squares. If you say "j'adoube" (French for "I adjust") or the English equivalent before touching a piece, you can reposition it on its square without being forced to move it — but this must be announced before you touch anything.
Frequently asked questions
Does the touch-move rule apply online?
Not in the traditional sense, since online interfaces work by clicking or dragging a piece to complete a move rather than physically touching it, so the rule is mainly relevant to over-the-board play.
What if I touch a piece by accident?
Under strict tournament rules, an accidental touch still counts — this is exactly why players are trained to keep their hands off the board until they've decided on a move.
What is j'adoube used for?
It's the phrase you say before adjusting a crooked piece on its square, letting you touch it without being obligated to move it, as long as you announce it first.