100 unique hand-made puzzles plus monster puzzle bonus. Tredoku is a new puzzle based on the rules of classic sudoku but takes you to a whole new playing experience. The game has an infinite number of shape possibilities - breaking out from the 3x3 square of the original game. This new game challenges both your logic abilities and your visual perception at the same time using unique 3D shapes. This book is for those who are familiar with sudoku rules. Enjoy!