Large Brain Book of Sudoku with 120 Hard Puzzles.
Solving Sudoku is a lot of fun, and easy to learn yet hard to master. Have fun with these challenging hard level Sudoku puzzles, expertly crafted and graded.
Large Brain Book of Sudoku: Large Print Sudoku Puzzle Book For Smart Adults, Seniors & Kids With 120 Hard Sudoku Puzzles (Hard Large Print Sudoku … Puzzles for Smart Kids, Adults & Seniors
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