Play Sudoku Online

About Sudoku

Sudoku is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 subgrids that compose the grid contain all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which for a well-posed puzzle has a single solution.

History of Sudoku

Sudoku originated in Switzerland in the 18th century and was introduced to Japan via America. The game became internationally known in 2005 and since then has become a global phenomenon.

How to Play

Start by selecting a difficulty level. The board will populate with a set of numbers. Your task is to fill in the rest of the board using the numbers 1-9. Remember, each number can only appear once in each row, once in each column, and once in each 3x3 box.