In the game Cube Crash II you will need to extract precious stones. They are on the playing field which is broken into cells. In each cell there is a square of a certain color. Some of them have the same colors. You need to put stones in one row. To do this you will need to remove the squares from the playing field. Look for items of the same color standing side by side and forming a series of three items. If you find such a click on them with a mouse. They will disappear from the screen and you will be given points. The stones will descend to a certain number of cells down.