Request to the organizers: please provide the following information:
Who starts the bidding, what colors are available, and when is the best-of-three match played.
Regarding the additional information in point 3, we encountered the following situation... first, the opponent paid 500, then I did, and then a pair appeared, and the opponent banned the castle first. Does he still have the right to regenerate, or not?
from the rules: 1 free regeneration is allowed for each player in case of a repeat of one of the castles.