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✓ 6 difficulty levels (very easy, easy, normal, hard, very hard, extreme – 30 puzzles of each level)
✓ 8.5″ x 11″ in
✓ 9 x 9 grid.
✓ 90 pages.
✓ 4 puzzles per page.
✓ 4 sudoku answers per page.
91 pages, Paperback
Published February 2, 2021