OLL parity

OLL parity is a OLL parity case on the 4x4 (trudny). Algorithm: Rw U2 x Rw U2 Rw U2 Rw' U2 Lw U2 Rw' U2 Rw U2 Rw' U2 Rw'. Below are 2 variants with a 3D animation and a scramble to practise.

My Reminder
My status:don’t know
How the status is counted

Training counts the status. A case added to training gets “learning”, and “known” after 5× “correct” in a row with the timer and without hints, when the average time is within the category threshold (Settings). 2× “wrong” in the last 3 attempts or much slower times drop it back to “learning”. Daily tasks don’t change the status.

How to recognize

An odd number of edges on top is yellow (1 or 3), which can’t happen on a 3x3. Hold the flipped edge in front (UF).

Algorithms

Tap a variant to see it in 3D.

  1. Main variant

Scramble

From a solved cube: yellow on top, green in front.

Generating a scramble…