Sudoku

The objective is to fill a 9x9 grid with digits so that each column, each row, and each of the nine 3x3 subgrids contains all of the digits from 1 to 9.
Click a cell to display the keypad. Click the number you want to fill to the cell from the keypad. To clear the number, click the C.
You can also use the keyboard to enter numbers. Place the mouse cursor over the cell and press a number key. To clear the number, press the DEL key or the 0 key.
There three memo fields in the bottom of each cell. You are free to use the fields.

How to Play Sudoku