Jeff Smith's Math Puzzle for June 19, 2026 – You might reap what you sow, but you must sew what you rip. The post Math Puzzle ...

Jeff Smith's Math Puzzle for May 29, 2026 – Chonkers, the Steller sea lion, departs Pier 39 K-dock for Stinson. The post Math ...

Jack Murtagh is a freelance math writer and puzzle creator. He writes a column on mathematical curiosities for Scientific ...

A jigsaw puzzle company wants to design a new rectangular puzzle with a specific quirk: it must have the same number of edge pieces and interior pieces. Each piece begins as a square of the same size, ...