BACK-SPIN puzzle in box Binary Arts brain-teaser 1980s vtg handheld game

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BACK-SPIN puzzle in box Binary Arts brain-teaser 1980s vtg handheld gameThis is a previously-owned, plastic “Back-Spin” brain-teaser manufactured by Binary Arts. The box has been opened…This Oppenheim Award winning puzzle is a saucer-shaped, double-sided brainteaser with two halves that you twist to pass marbles from one side to the other. Your job is to scramble the colored marbles, then figure out how to get them back into their matching slots… on both sides. It might look simple at first, but it’s tough and cleverly addictive…Powered by SixBit's eCommerce Solution