RT Brainstring Original Retro logic game

The Brainstring Original is a retro logic puzzle that challenges your mind in an unusual way. Inside, twelve flexible strings are stretched, and at their ends, 24 coloured buttons are placed in groups of three, each movable along its track.

The aim is to swap the differently coloured buttons so that, at the end of the moves, there are no knots in the strings between them and the strings never touch one another. As you move the buttons, the strings tangle, forming a variety of symmetrical and asymmetrical knots and shapes inside the puzzle.

To play, slide the buttons along the tracks to change the position of the strings. Then try to untangle the knot until all the strings are taut again.