The Laws of Chess cannot cover all possible situations that may arise during a game, nor can they regulate all administrative questions. Where cases are not precisely regulated by an Article of the Laws, it should be possible to reach a correct decision by studying analogous situations which are discussed in the Laws.

The Laws assume that arbiters have the necessary competence, sound judgement and absolute objectivity. Too detailed a rule might deprive the arbiter of his freedom of judgement and thus prevent him from finding the solution to a problem dictated by fairness, logic and special factors.

FIDE appeals to all chess players and federations to accept this view. 

A member federation is free to introduce more detailed rules provided they: 

(a) do not conflict in any way with the official FIDE Laws of Chess 
(b) are limited to the territory of the federation in question; and 
(c) are not valid for any FIDE match, championship or qualifying event, or for a FIDE title or rating tournament.