Sudoku

Sudoku puzzles are solved by logic and no math is required. It consists of a grid which is usually made up of nine rows, nine columns, and nine boxes that are separated by thicker, darker lines. Some of these boxes will contain numerals from 1-9, Images or different Colors.

To solve the puzzle, a person must fill in all the empty squares without using the same numeral/image/color twice in each column, row, or box, and without changing the numerals/images/colors that are already in the grid.