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World's hardest Sudoku puzzle book for adults: A Challenging Sudoku book for Advanced Solvers a fun way to Challenge your Brain . Solutions included .
Brain River Publishers
World's hardest Sudoku puzzle book for adults: A Challenging Sudoku book for Advanced Solvers a fun way to Challenge your Brain . Solutions included .
Brain River Publishers
102 pages
| Media | Books Paperback Book (Book with soft cover and glued back) |
| Released | December 1, 2020 |
| ISBN13 | 9798575002543 |
| Publishers | Independently Published |
| Pages | 102 |
| Dimensions | 279 × 214 × 9 mm · 258 g |
| Language | English |
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