Purple really is the hardest color in New York Times's Connections game.
Across the 400 games that I analyzed to see how similar each group's words are, yellow is easiest on average, then green is a little harder, then blue, then purple is hardest.
You can read more about my analysis of Connections here: https://jeremybmerrill.com/blog/2024/08/this-algorithm-solves-nyt-connections.html
Is purple the hardest category for you in Connections? Did you even realize that the colors had a meaning? (I didn't until I did this analysis.)

