1979 Handheld electronic game, a rare expanded version of Electronic Mastermind, which plays 12 versions of the classic Mastermind game. Enough of a challenge for even the most mentally adventurous of us.

This example of the game is in Excellent, fully tested condition, close to 10/10. Includes instructions, score pad, protective case and battery cover. Box is also in Excellent condition, 9/10.