Use a simple rhythm: clarify the objective, take a short structuring pause, prioritize the first branch, and keep synthesizing as you move through the case.

Unfamiliar cases can make candidates spend too long trying to perfect the opening structure. That uses time without necessarily improving the analysis.

If the problem feels unusual, take enough time to create a workable structure, state which area you would examine first, and then adapt as new information arrives rather than trying to solve the whole case upfront.

Practice unfamiliar prompts with a timer for each stage, but review whether you were actually productive rather than chasing arbitrary speed. The goal is controlled progress, not rushing. For more case interview practice guidance, see the Case Interview Guide.

I used to spend way too long trying to make the opening structure perfect when the case was unfamiliar. A good-enough structure plus clear prioritization worked better.