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YouTube — 3Blue1Brown

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How to build and solve a 4D Rubik's cubes in physical 3D (no simulator!)

I’ve been meaning to make this video about building and solving physical 4D Rubik’s cubes ever since Melinda Green sent me one of her brilliant physical 2x2x2x2s back in 2017! Why did it take so long? Well, this one was especially tricky to get right, and I think it’s probably…

YouTube — 3Blue1BrownBy: MathologerAugust 16, 2025 (Aug 16)
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AI Summary & Key Takeaways

  • I’ve been meaning to make this video about building and solving physical 4D Rubik’s cubes ever since Melinda Green sent me one of her brilliant physical 2x2x2x2s back in 2017
  • Why did it take so long
  • Well, this one was especially tricky to get right, and I think it’s probably…
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