Why is there a 2' vs 2

darkzelkova

Veteran
Joined
Dec 30, 2007
Messages
267
Location
Canada
Why do some algorithms have a ' after the 2? Like I see some where people write UR2'UR2U for example, and I don't know why this is. Is it a suggestion for which way to turn it or something like that?
 
It suggests that you should turn it clockwise or anti-clockwise.

It's helpful for explaining exactly how someone executes an algorithm.

You can ignore it if you want and do clockwise or anti-clockwise turns, but it's just their to show you how the author solves the cube.

Tim.
 
Back
Top