If you want to test your memory and powers of observation, then try to complete all levels of the new online game Memory Grid. In front of you on the screen you will see four cubes of different colors. You will have to look at them carefully. For a few seconds, one of the cubes will turn a bright color. You will have to remember which one and then click on it with the mouse. This way you will give an answer and if it is correct you will be awarded points for it in the Memory Grid game. Remember that with each level the rate of appearance of cubes will increase, so be extremely careful.