Brain String
- Name: Brain String
- Classification:
- Manufacturer: RecentToys International
- Year:
- Where to buy: BrainString at Puzzle Master Inc.
- Puzzle Instruction: See image below
- Objective: Move the colored buttons over the segments of the cube and try to position 2, 3, or 4 of the same color on every segment. All without entangling the strings.
| <- previous puzzle | Puzzle Index | next puzzle -> |



