When must the Arbiter Intervene

When the arbiter witnesses the following cases he must take action.

He must declare:

  • Draw In stalemate, provided that the last move was legal.
  • Win in checkmate, provided that the move leading to checkmate was legal.
  • Draw in a dead position arises, provided that the last move was legal
  • Draw by the 75 move rule.
  • Draw by the 5-fold repetition rule.
  • The result at flag fall (in all time-controls).
  • Draw if both flags fell (unless there is a second time period, then players must continue to play).

He must:

  • Adjust the clock and the move counter if the settings were incorrect.
  • Warn players not to hit the clock violently.
  • Enforce penalties for illegal moves.
  • Forfeit players who arrived after the default time.
  • Cancel the game if the initial position of the pieces was incorrect. A new game shall be played. (Valid for Standard Chess and for Rapid/Blitz with adequate supervision).
  • Transfer the position of a game played on a wrongly orientated board, to a correctly orientated one. (Valid for Standard Chess and for Rapid/Blitz with adequate supervision).
  • Cancel the game if the initial position of the pieces was incorrect, provided less than 10 moves have been completed. A new game shall be played. (Valid for Rapid/Blitz without adequate supervision).
  • Transfer the position of a game played on a wrongly orientated board to a correctly orientated one, provided that less than 10 moves have been completed. (Valid for Rapid/Blitz without adequate supervision).

.. to be continued