Sudoku Book 600 Hard Puzzles: Sudoku Puzzle Book With Only One Level of
17,17 €
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 giving you a sense of accomplishment. It is said it can also reduce the chance of developing Alzheimers. This Sudoku puzzle book contains 600 puzzles with a single level of difficulty, so there are no wasted puzzles. There are 4 puzzles per page and solutions are at the end of the book.
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