A great 3d game that tests your spatial and logic skills. 3D Logic looks very similar to Rubik's Cube. It involves colors and squares on a cube, but it's a very different beastie. Click on the main color squares to change the color of the grey squares. Use this ability to link colors into chains. Like many great games, this takes a simple idea and makes it compelling. Link every pair of colored like markers to complete a cube. You cannot link cells diagonally. If you break an existing link reselect the broken link color by clicking on one of the two markers, then pllug and gaps. Black cells are blocked.