Tredoku: Penguin Adult Hc/Tr

The next must-have for every puzzle enthusiast: a collection of challenges that takes Sudoku to the next level, literally.
Finally, the next big thing in puzzles has arrived-a three- dimensional number logic game based on the rules of Sudoku. Tredoku(tm) features one hundred unique, handdrawn puzzles with an endless variety of shape possibilities, breaking out from the three-by- three square of the game puzzlers are accustomed to. Challenging players on a whole new geometric level, Tredoku(tm) uses three- dimensional play to test readers' logic and visual perception. Millions of Sudoku fans can't be wrong-and this is the next craze they have been waiting for.