Collection

Almost 300 other mathematical puzzles appear in this original collection, devised by world-renowned mathematicians, puzzle creators, and devoted puzzle lovers.

3.5" x 5". 64 pages.

Goodnight, Numbers

by Kubiya Games

Geometiles - Mini Set 1

Water Bottle Ice Tray

Logic Strategy, Fine Motor

6" x 6"

Writing on the Wall, The

The Math and Myth of Coincidence

While supplies last.

Genius Squad