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Solving a nearly-impossible Rubik's Cube (Patreon)

Published:
2017-12-21 15:14:28
Imported:
2017-12

Content

This is the bonus patreon-exclusive footage of me solving an original Rubik's Cube.

The main video about impossible Rubik's Cubes is over here:https://youtu.be/PLAFNvxDPMw

No patreon support was used to buy original Rubik's Cubes!

Files

Patreon: solving an original Rubik's Cube

This was as hard as it looks.

Comments

Ivik Injerd

Nice work Matt! 5 years ago, I made a post about impossible cubes in art on deviantArt. <a href="https://the-rubiks-cube.deviantart.com/journal/1-Mistake-To-Avoid-In-Rubik-s-Cube-Artwork-278699223" rel="nofollow noopener" target="_blank">https://the-rubiks-cube.deviantart.com/journal/1-Mistake-To-Avoid-In-Rubik-s-Cube-Artwork-278699223</a> Also, I wrote code for this years ago. You can find out if the corners are orientated correctly with math. Take the top/bottom colors, say white and yellow. Look at each corner on the top and add 1 if white or yellow is to the left and subtract 1 if the white or yellow is to the right. Flip the cube so the bottom is now the top and continue in the same manner. If your resulting number is an even number, the corners can be solved. (I still don't know how to check edge orientation validity with math yet.)

Matt Parker

That is really interesting! Reminds me of some of the blindfold methods. I’m hoping to do a follow on video in a few months about what happens if the pieces of a Rubik’s cube are randomly assembled. This technique is perfect for that. There must be an equivalent for the edges…

Ivik Injerd

I think I got something wrong in my directions. I just tried it again with a cube I mixed up and I got an odd number. I'll dig in my old code and try to find what I missed. Sorry! Edit: I think I found my problem! All the steps are good except the corners are correct only if your result is divisible by 3, or more precisely, your result modulo 3 is equal to 0.