Collect the items in a horizontal or vertical line and go through the levels. Everything would be simple if not for the black elements that prevent You. You have a certain amount of turns (different for each level) to collect the line, if this is not done against You has one of sanctions (reduction of points, replacing one of the elements black element, "freezing" of one of the elements, hide move counter). Some levels are played on time, not number of moves. Spend time with benefits, develop mental skills and have fun! Go through all 999 levels!
Pimp your brain!!!