## puzzle

Try this interactive sudoku-esque puzzle, kindly provided by *Muddled Puzzles*!

Katastrophion is a level up from Logikion — if you like sudoku, you'll like this!

Logikion is a level up from Pandemonion, one of our new interactive sudoku-like puzzles!

A life insurance agent knocks on a door. A woman answers and he tries to sell her a policy. He asks her how many children she has and their ages. She replies: "I have three children, but I will not even listen to your sales pitch unless you guess their ages..."

A mad robot sets off on a journey mindlessly following a set of instructions. Where will it explode?

Which gives a tighter fit: a square peg in a round hole or a round peg in a square hole?

The *n*-th birthday of a very famous mathematician coincides with a year that corresponds to the (*n*+1)st prime number. Who is this mathematician?