Infinite hat problems (solutions)

Yesterday I stated four hat problems. Today’s post contains the solutions to those problems. 1. Alice and Bob are wearing hats. The hats are either red or blue. They can see each other’s hats, but not their own hat. They are tasked with guessing their own hat color. If either person gets the color right, then they…

Infinite hat problems

I got back from MathFest yesterday after a long 3-leg red-eye trip across the country. It was a great meeting. It is always fun to hear some good talks, visit a new city, and see old friends (and meet another math blogger). The first talk that I attended was given by Alan Taylor: “Predicting Values of…