Sharpen up your mind and improve your memory by playing Sudoku every day. Sudoku stimulates your mind, increases concentration and makes you feel happy by givin

Relieve boredom and stress by playing Sudoku. With two levels of difficulty this jumbo bargain size Sudoku Puzzle Book will soon improve your game. There are 4

Have fun while exercising your brain. Sudoku helps delay dementia by making your brain work in a different way and giving you a great sense of accomplishment. T

Sit down and enjoy a break with this sudoku puzzle book containing 1,000 puzzles, 500 hard and 500 extra hard. There are 4 puzzles per page and solutions are pr

Work your playing level up with this sudoku puzzle book containing 1,000 puzzles. There are 500 hard and 500 extra hard, with only 4 puzzles per page to leave s