Simple solver application made using pygame module in python.
-use arrow keys to move the pointer on the grid.
-use mouse click to change the pointer on the grid.
-press the number-keys to enter particular number into particular cell.
-press "Enter" key to solve the sudoko after entering numbers.
-press "Backspace" key to reset the grid of the solver.
-press "0" to reset number in a particular cell.
-(or) press another number-key to overwrite the number in the cell.