I am still struggling with the Blue Book with its complex, incomprehensible and ambiguous rules for partnership understandings.
I need to understand levels. It looks as if there are three levels - 2, 4 and 5 and my general assumption is that most club bridge is level 4.
But I have never played anywhere where the level was defined or seen any reference to level in any reference to a competition.
Is there any way that level is specified?