Place numbers in the grid such that each row, column and 3x3 box contain the numbers 1 to 9. Outside cells must be inserted in one of the first three cells of the row or column.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.