I finished the cube but got this on 1 side:

enter image description here

How do I fix it without ruining it?

It is fixable, I did it once but I don't know how I did it.

  • $\begingroup$ This isn't really a puzzle. However, most Rubik's cubes allow you to take out the middle piece and put it back in so you can tighten/loosen the cube. $\endgroup$
    – boboquack
    Apr 2, 2017 at 9:31
  • $\begingroup$ Check out this page for rotating center pieces. alchemistmatt.com/cube/rubikcenter.html $\endgroup$ Apr 2, 2017 at 11:29
  • $\begingroup$ What I usually do is hold the cube with the center that has to be rotated 180 degrees at the top, and then use: R U R' U (5x). Jaap's algorithm seems to be shorter though, and actually has reasoning why it works. $\endgroup$ Apr 2, 2017 at 18:17

1 Answer 1


Hold the cube so that the centre to be twisted is in the U face. Then do the 12-move sequence:
R L U2 R' L' U
R L U2 R' L' U
What the first 5 moves do is to swap two opposite corners and two opposite edge of the U face. After a U quarter turn the moves are repeated to swap the other corner pair and edge pair. This means all the U layer pieces have been rotated 180 degrees around relative to the centre. When the U layer is then turned to its correct location it is only the centre that has twisted 180 degrees.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.