- BRAIN TEASER: Play with this challenging sudoku like mathematical brain teaser!
- INCLUDES: Solid wooden playing base and sixteen wooden reversible number tiles.
- PROFESSOR PUZZLE: Developed by Professor Puzzle and part of the Albert Einstein collection - a suite of complex 3D Puzzle / Brain Games.
- GREAT GIFT IDEA: A great item for any fan of creative thinking brain teaser puzzles.
Professor Puzzle presents The Einstein Ultimate Number Puzzle - A tricky Wooden Puzzle Game suitable for both kids & adults. 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. Part of the official Albert Einstein collection from Professor Puzzle - A suite of complex 3D Puzzle / Brain Games.