Den-9

There are three buttons, red, blue and yellow ones.
If pressing the red and blue buttons one time separately, one of many light bulbs is turned off and on.
If pressing the same color button continuously, all light bulbs are turned on.
If pressing the yellow button, all light bulbs are turned on.
Colors of all buttons become white while playing game to hide which button is red, blue, or yellow.
Guess which color button you pressed when clicking the button.
The object of this game is to turn off all light bulbs.
The color of the button is displayed only for three seconds in Easy Mode after starting the game.
Let’s control buttons to turn off all light bulbs.