Arbiter

Every serious competition needs someone who does not play. The arbiter watches games, especially when players are short of time, answers claims and makes rulings. The Laws give the arbiter a list of duties: ensure fair play, act in the best interest of the competition, keep a good playing environment, make sure players are not disturbed, supervise progress, and take special measures for disabled players. The arbiter must not interfere in a game except in the cases the Laws describe, and may appoint assistants. When a rule is broken, the arbiter can choose among penalties ranging from a warning, through changing the clock times or the points, to a fine, exclusion from rounds and expulsion. Players have rights too. You may ask the arbiter to explain a point in the Laws, and unless the event rules say otherwise you may appeal a decision even after signing the scoresheet. In some places the role is called a tournament director. Practical advice: stop your clock and raise your hand if you need a ruling, state the facts calmly, and do not argue with your opponent in the meantime.

It sits close to Resignation. Resignation is a player's declaration that they give up the game, which ends it as a loss for that player unless the opponent could never checkmate, in which case the game is drawn.

Compare it with Seventy-five-move rule. The seventy-five-move rule ends the game in a draw automatically when each player has made at least seventy-five moves without a pawn move or a capture, unless the last move was checkmate.

A neighboring idea is Adjusting a piece. Adjusting a piece means straightening one on its square; the Laws allow it only to the player on the move, who must first say "j'adoube" or "I adjust" to show they do not intend to move it.

Knowing "Arbiter" is the easy part; what to practice next depends on your rating, and the improvement plans by rating band list the habits worth building at each level.

Related terms

• Rules of chess

  The rules of chess are the Laws of Chess, the document FIDE publishes that sets out how pieces move, how a game ends, how clocks and records work, and how arbiters handle problems.

• Chess clock

  A chess clock is a pair of linked timers of which only one runs at a time; after each move a player presses their side to stop their own time and start the opponent's.

• Forfeit

  A forfeit is a loss awarded without a finished game, for example when a player arrives after the default time, persistently refuses to follow the Laws, or has an unapproved electronic device in the playing venue.

• Illegal move

  An illegal move is one that breaks the rules of how a piece moves or leaves your own king in check; in over-the-board play it is corrected, and a second completed illegal move loses the game.

• Scoresheet

  A scoresheet is the paper or electronic form on which each player writes down all the moves of the game in algebraic notation, and which both players sign or approve at the end to confirm the result.

• Touch-move rule

  Touch-move is the over-the-board rule that binds a player to a piece once it has been deliberately touched: your own piece has to be moved and an opponent's piece has to be captured, wherever a legal move exists.

Guides that go further

• How to choose a chess coach

  What to decide first, the questions to ask, what a first lesson should show and the red flags to avoid.

• How much does chess coaching cost?

  Published rates for private, group and subscription chess coaching, with the source and the date of each.

• The first lesson

  A game review, a read on your level and a written study plan from George Li.

Sources

• FIDE Laws of Chess (effective 1 January 2023), Article 12, read Oct 21, 2026.
• FIDE Laws of Chess (effective 1 January 2023), Article 12.9, read Oct 21, 2026.
• FIDE Laws of Chess (effective 1 January 2023), Articles 11.9 and 11.10, read Oct 21, 2026.
• FIDE Laws of Chess (effective 1 January 2023), Preface, read Oct 21, 2026.