test your ability in blind drawing. Use up/down arrow keys to up/down the invisible pen; make your blind drawing moving the pointer with mouse. When you have finished click on DRAW to see what you have traced up arrow key - pen up (pointer shows empty circle - pen wil not draw) down arrow key - pen down (pointer shows filled circle - pen will draw) CLEAN button - clean the canvas DRAW button - the pencil draws your blind drawing click on the colored balls to change color
