A fun hobby that exercises your brain and gives you a sense of accomplishment. That's the perfect description of the numbers puzzle from Japan called sudoku.
* Sudoku 16x16 - Normal is a collection of 200 puzzles with solutions:
* 200 Normal Sudoku 16x16 puzzles
* Large Print with one puzzle per page.
* The size of the large tables does not cause eyestrain when playing.
* Suitable for all ages.
* Can record the time it...