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**Single-click**: mark as

**a possible solution**.

**Double-click**: mark as

**the solution**. Click

**How to play**to learn more about how to use the controls in solving the sudoku. Click

**Undo**to undo the previous move.

**Coming soon**Click

**Redo**to redo the last move that you've undone.

**Coming soon**Click

**Start a new sudoku**to start over with a fresh new sudoku with your preferred difficulty level. Click

**Show mistakes**to mark all the cells that contain an incorrect solution. The cells will be marked for 10 seconds. Click

**Give me a hint**to give the solution of a random cell, while also giving an explanation on why this is the solution.

**Coming soon**This shows the amount of time that you've spent on this sudoku. This shows the number of times you've used the 'Show mistakes' option. This shows the number of times you've used the 'Give me a hint' option.