The Bio-Logical Game!
There's a virus lurking on the board; time to assemble some powerful little cells to fight it off! In Anti-Virus, your child must manipulate the pieces so that he can push the red "virus" piece out of the game board through the exit in the top corner.

60 Challenges
Anti-Virus is a sliding puzzle game with tiles that only slide diagonally. A best-seller at home school conferences, this very tactile game develops logical thinking, strategic planning, and visual-spatial perception. Made from sturdy plastic with brightly colored pieces, Anti-Virus has sixty puzzle challenges and includes a drawstring bag for storing the game board and puzzle pieces. Set also includes an instruction book complete with rules and solutions. For ages seven and older.

Another outstanding component of Timberdoodle's Seventh Grade Core Curriculum!