best responses that player two can choose at the depth-limit. We can repeat this process as many times as we want. Now, some details about this technique, it might seem like this is really expensive, and may not get good performance because we can't add like a million different strategies for player two to choose that the debt limit, but it turns out that because they are making this choice separately at each information set, they're essentially able to, even if we only give them a choice between 10 different strategies,