Credited with solving this (unusually easy) puzzle:
This month’s challenge is from Reda Kebbaj. (Thanks!)
Find nine different prime numbers that can be placed in a 3×3 square in such a way that the average of every row, column, and diagonal is also a prime number.
I don’t know what happened here, but IBM posted a super easy one. I solved this in about 30 mins by just by recognizing some basic number patterns and popping some numbers into a little excel tester sheet I created. I’m actually reluctant to post this to my portfolio because it isn’t something I am particularly proud of.