Large Print Sudoku 16X16 - 100 Hard Puzzles: Very Difficult Hexadoku with Soluti

Large Print Sudoku 16X16 - 100 Hard Puzzles: Very Difficult Hexadoku with Solutions - Sudoku Variant Puzzle Book for Adults (Large Print Sudoku Variants). Large Print Sudoku 16x16 - 100 Hard Puzzles. Due to the large grid and the difficulty level, this book is a real challenge even for Sudoku experts.

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