Constraint Solving

One of my favorites is T and U perms with no setups. Makes you really think about it. It goes back to being a puzzle.
Yes, you can do a U turn with T and U perms, but that takes the fun out of it.
Also, try doing a 2 edge flip with only U perms. Again, makes it a puzzle.
 
Last edited:
Half turns only is pretty fun. Give it a try on 4x4 or 5x5 too.

A slightly more difficult variant (for 3x3) allows any 180-degree turns and any slice turns.

Also, it's always fun to try slice turns only on 4x4 and above :D Basically you can turn any slice except the outermost layers.
 
Back
Top