Number Mastermind Tweet Description The number version of the classic Mastermind. - BoardGameGeek Details Ages: 8 and up Category: Abstract Strategy, Deduction, Memory, Number Designer: (Uncredited) Family: Mastermind Mechanics: Memory Players: 2 to 2 PrimaryName: Number Mastermind Product Title: Number Mastermind Publisher: Cayro Juegos, Invicta Games Time: 10 minutes Year: 1976
