The new 3D guessing fun for Sudoku fans! Tredoku - the three-dimensional Sudoku brain training and gaming fun all in one. Finally, two more volumes with new challenges! Sudoku is the guessing and gaming trend. And Tredoku takes it to the next level! It brings the fun of Sudoku into a new dimension: the third one, to be precise. The Sudoku rules are applied on three levels instead of the usual two. While this may sound like a slight variation, it is actually a whole new challenge for players. Both hemispheres of the brain are engaged: the left, responsible for logical thinking, and the right, the center for creativity and spatial awareness. Whether in the beginner's volume or the advanced one: in both books, readers will learn everything about this fascinating gaming innovation and can dive into 100 tasks each. Tredoku brings the fun of Sudoku into the third dimension.