Supersonic Electronic Mastermind Tweet Out of stock. Wishlist Description Electronic version of Mastermind. - BoardGameGeek Details BGID: 6906 Time: 20 minutes Designer: (Uncredited) PrimaryName: Supersonic Electronic Mastermind Players: 2 to 2 Year: 1979 Product Title: Supersonic Electronic Mastermind Family: Mastermind Ages: 8 and up Publisher: Invicta Games Category: Puzzle
