San Juan
If nobody chooses the Trader role in a round, does anyone trade that round?
The rulebook's overview has each player choose one of the five roles, and only chosen roles are played.
- San Juan rulebook · Rulebook · OVERVIEW
- Case · Community · 2007-10-14
- Rygel · Community · 2007-10-14
No. Only the roles that were actually chosen are used in a round, so an unchosen role's action and privilege do not happen for anyone.