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This very hard sudoku puzzle book has been created for fun for all ages and can be played by children, adults and senior citizens alike - suitable for all advanced sudoku puzzle lovers! Perfect for stimulating the mind and improving reasoning skills, this book contains 200 very hard difficulty level sudoku puzzles with solutions for each of the puzzles.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.