The task of the game is to match the colors in the circles
within 20 seconds.
The color of every even circle is fixed but you can control the
RGB values of every odd circle using the controls (see right).
The closer the colors are, the lower the color difference value
will be. A color difference value of 0 is a perfect match.
D to switch between controlling
Hold UP and
DOWN keys to
increase or decrease the RGB value.
- Practise controls here