Professor Puzzle Number Puzzle Game

Einstein Number PuzzleThis number puzzle is inspired by Einstein's vast use of numbers to understand the world around him. A tricky wooden puzzle game suitable for both kids & adults. Includes a solid wooden playing base and sixteen wooden reversible number tiles. Play with this challenging sudoku-like mathematical brain teaser. Each line must add to 264 but each number can be flipped upside down to make a new number! A great gift to develop quick math.