The regular meetingsĀ for this semester are slotted for Thursdays at 4. More information about internal and external speakers, and specific days forthcoming. (Meetings will be online for now.)

The regular meetingsĀ for this semester are slotted for Thursdays at 4. More information about internal and external speakers, and specific days forthcoming. (Meetings will be online for now.)
Where did you get the nice puzzle? Took me a little while to figure out.
its called the “missing square puzzle” https://en.wikipedia.org/wiki/Missing_square_puzzle
It one of the many little puzzles discussed in my puzzles and paradoxes course.
Thanks! That must be a fun course.