Sudoku Puzzle is a grid with 6 squares deep and 6 squares wide. In each square you need to enter numbers from 1 to 6. The meaning of the puzzle: use the number in each row, column and 3x2 block only once.
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.