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The Brainstring Original has found fans in more than 40 countries, where people continue to be drawn to its deceptively simple design and endless puzzling possibilities. The Brainstring Revenge keeps the same knotty challenge as the original but adds a new twist—a movable ball that spins 360 degrees, making the puzzle even trickier to solve. To tackle either version, you'll need to twist, turn, stretch, and slide the strings in every direction to carefully unwind the tangled knot. The puzzle is complete when all the strings are fully separated—no tricky hidden steps required.
Things to Keep in MindA frequent concern among users was the toy's durability, with multiple reports of parts breaking or strings snapping shortly after purchase. Furthermore, several reviewers noted that children quickly lost interest in the puzzle, finding it unengaging or boring after initial use. Why You'll Like ItMany reviewers found the puzzle to be an engaging and unique brain-teaser that offers a fun, solvable challenge for both children and adults, with some noting its smooth operation.
ToyDirectory Product ID#: 54163 (added 7/9/2025)
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