All players must always abide by all the rules then in effect, in the form in which they are then in effect. The rules in the Initial Set are in effect whenever a game begins. The Initial Set consists of Rules 101–116 (immutable) and 201–212 (mutable).

Anyone is welcome to add their views on a rule in the commentary section and a signature. Use a separator at the end.

This rule is the Grundnorm, the meta rule for all rule-based systems that rules must be obeyed. It contains other details, but that is the essence of the rule without which it seems difficult to imagine any structured play could proceed.

— modulux 2024-03-18T12:31