More than 800 Sudoku puzzles.Sudoku grids that are large, easy to read, and fill out.Large format - 8.5 X 11 Inches formatLevel-1 240 Easy Puzzles (1-240)Level-2 240 Medium Puzzles (241-480)Level-3 320 Hard Puzzles (481-800)273 pages.Suitable for all Levels: Beginner to ExpertSolutions included in the bookIt makes a perfect gift
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