Sudoku Notepad 2015 Calendar

It s the three-in-one desk accessory that challenges Sudoku lovers with a daily puzzle from Nikoli, the Japanese company that created the original (and still the best!) Sudoku. The hand-generated grids, which begin easy each weekend and increase in difficulty over the course of the week, are brillia [...]
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It s the three-in-one desk accessory that challenges Sudoku lovers with a daily puzzle from Nikoli, the Japanese company that created the original (and still the best!) Sudoku. The hand-generated grids, which begin easy each weekend and increase in difficulty over the course of the week, are brilliantly designed to balance toughness and fun."