MJS Cubing
Member
First of all, use the parity algorithm when you have parity. If you have trouble with parity, there are 2 kinds. OLL parity, and PLL parity. If you have an impossible OLL case, you have parity, in which case you would execute the algorithm for OLL parity. Same for PLL, if you have an impossible case, use PLL parity. J Perm has a great video on 4x4 parity, and also good algs on his website.When it comes to doing the top layer on a 4x4, they say it’s supposed to be the easiest part. Every YouTuber and source online says that you need to “solve it like a 3x3” but the colours on top are completely different than the colours on top of a 4x4. I know what parity is and I know the algorithm. Also, when would I use this parity algorithm?
Videos:
OLL parity video
PLL parity video
J Perm 4x4 page