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Question about General Questions Trade with the Bank - What is a trade with the bank?

Answer

A trade with the bank is defined as any trade of resources that doesn’t involve the opponent, where the following may be used: Trade Fleets, Christopher the Great Explorer, the Mint, and the “normal” 3:1 exchange rate.

Note: Christopher the Great Explorer belongs to the "Barbarians & Traders" theme set, which is part of the Catan Card Game – Expansion Set.