Publisher's Synopsis
Sudoku puzzle books provide the perfect brain stimuli and Jumbo Sudoku Challenge will be no exception!
With over 400 puzzles, grouped easy to hard, you'll never be short of a fun workout to exercise these brain cells.
Sudoku games are ideal for these long journeys or even during downtime at home. Keep these neurons firing while you increase and develop your powers of logical thinking.
(Solutions are provided - not that you'll need them of course!)