The Which? Series

Title: The Which? series: Which?, More Which?, Also Which?

Genre: Puzzle

Completion Time: <5 minutes apiece

The Which? series is a seemingly endless procession of variants on a very simple idea: two seemingly identical circles are presented, and you are tasked with figuring out which one meets the criterion given. This can involve manipulating the circles, manipulating the environment, or any number of other interesting things.

Fun:

Somehow, this type of puzzle never, ever gets old for me. I am always delighted to see a new one up. It helps that they are very well executed. If you get it wrong then you just get a "Mistake!" and a skip to the next level, so you never get stuck. (If you want to go back and retry the ones you missed, replay is very quick.) 5/5

Interesting:

Yoshio Ishii has essentially invented a new genre of puzzle here. It could easily be adapted in exciting ways by other people. If that isn't interesting, I don't know what is. 5/5

Moving:

One of the rare games that draws me in despite having no emotional content whatsoever. 0/5

One of my very favorite series for a quick and engaging mental boost.