# How it works

In the marketplace, the player can exchange trading posts with his opponent, but there are some conditions to be fulfilled beforehand.

* [ ] All trading posts must be sold.
* [ ] One of the player has to be visiting the Marketplace.
* [ ] The trading posts to be traded cannot be part of an already completed province.

{% hint style="warning" %}
IMPORTANT!

The player who swaps a lower-value post has to pay five times the difference.
{% endhint %}

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