The games on this site require a modern, standards-compliant web browser which supports HTML, JavaScript and Cascading Stylesheets (CSS). Browsers which support these standards include Firefox, Google Chrome and Safari. In addition, Internet Explorer *MAY* work for you, but we do not recommend Internet Explorer due to its multiple compatibility and security issues.

Simply click on the "Sudoku Puzzles" link on the left. The selected puzzle should start up shortly.

To put a digit into a cell, click the cell to highlight it, then click the digit in the row of digits at the bottom. The digit you click will be placed into the currently highlighted cell. To remove a digit from a cell, click the cell to highlight it, then click CLEAR.

In the game of Sudoku (or Su Doku) you're presented with a 9x9 grid which is subdivided into nine 3x3 grids. When the puzzle is solved, each cell in the grid will contain a single digit, 1 through 9.

In he beginning, some numbers are shown, but the rest are hidden. The object of the game is to fill in the missing numbers so that each 3x3 cell, each row, and each column in the grid contains each of the digits 1 through 9.

There is only one possible soltion for each puzzle, so don't try to guess the numbers. Use logic and the process of elimination to determine where each number goes.

Once all digits have been solved correctly, the puzzle is complete, and the timer will stop, showing you the amount of time you took to complete the puzzle. If you are logged in, your completion time will be recorded. If you're in the top 10, your username will appear in the top 10 list below the puzzle.