Brainstring Original Retro Brain Teaser Toy

BRAINstring original retro brain teaser toy in EUC with instruction booklet. Great challenge for children and adults! The Brainstring Original contains mysterious strings that can be interchanged with each other without creating a knot. Change the position of the strings to move the pegs. Solve the knot in the middle so that all strings go straight. A great game to learn problem solving skills. The mystery of Brainstring Original isn't just how to untie a twisted ‘knot' of strings in the center, but how it can be that all its strings can be interchanged - WITHOUT creating a knot! Four groups of different colored strings, four strings per group, moving up, down & around all six sides of a polycarbonate shell…...beyond just tying or untying a knot, what kind of beautiful symmetries can you create? Brainstring Original isn't just a puzzle—it's a work of art. The main goal is to move the coloured buttons from hole-to-hole to create a solid color on every side and untangle the knot in the middle. Brand: Recent Toys Ages: 7+ Players: 1 Designed by Guido Lap.