Geometric 2 is another logic game (successor of geometric 1), which is based on eor-logic. You have to put differently shaped pieces (different shapes in each level) into the playing area, thus adding or cancelling out the existing pieces. The goal is to clear the complete area.
Geometric 2 was the first C64 game ever to use the so called "FLI" resolution for the entire game screen. (A resolution which required switching color banks in every scanline, thus allowing to use 8 times more colors than usual)