Na-perm
Diagonal swap
Na-perm is a PLL case on the 3x3 (Diagonal swap, medium). Algorithm: R U R' U R U R' F' R U R' U' R' F R2 U' R' U2 R U' R'. Below are 3 variants with a 3D animation and a scramble to practise.
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
Bars on the right, and on each side the corner is the opposite colour.
Algorithms
Tap a variant to see it in 3D.
- Main variant
Scramble
From a solved cube: yellow on top, green in front.
Generating a scramble…