What is the most frustrating board game to calculate scores for?

I'm currently finalizing Meeple Score (a smart score tracker for complex games), and I'm building custom score sheets to do the math automatically.

I already have templates for 7 Wonders, Wingspan, and Skull King (which usually take 10 minutes of pure math at the end of a game!).

Board gamers of Product Hunt: Which game always gives you a headache when it's time to count the final score? Let me know so I can add it to the app!