The cases are not really harder. You are not going to suddenly face some crazy complex problem that needs genius-level math. The type of case, the logic, the structure, it is pretty similar to what you already did in earlier rounds.
What changes is how well you need to perform.
The conversation feels different. Partners don't always stick to a script. They might interrupt you, push back harder, go off topic, or skip parts of the case if they have seen enough. You need to stay calm and go with the flow. People who practiced a very rigid approach often get thrown off here.
They care more about your judgment. In earlier rounds, being structured and getting to a decent answer is usually enough. Partners want to see that you actually have an opinion. When they ask "so what would you recommend?" they want a real answer, not "it depends." They are checking if they would trust you in front of a client.
Fit matters a lot more. Partners are basically asking themselves "do I want to work with this person?" The case is one way to test how you think under pressure. But they are also watching how you talk, how you handle pushback, whether you are confident but not cocky. The human side counts more at this stage.
They might go deep on one thing. Instead of doing a full case, a partner might spend 20 minutes drilling into just one part. Maybe the market sizing, maybe how the business makes money. If they think you are good at something, they push to see how far you can go.
So don't prepare for harder cases. Prepare to be sharper, more flexible, and more willing to give a clear answer.
