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The real problem with RLUDFB is that it is nearly impossible for

the casual observer to determine if two "transformations" are the

same or not. Transformations should be described such that there

is ONE description of each transformation. We can't really get all

the way to the ideal, because there are discinct sequences that lead

to the same termination. But we can eliminate a lot of the confusion.

I Propose that all transformations be described in terms of twists

done by both hands without changing the overall cube orientation.

my proposed primitives are

1 "forward" twist of left or right face

2 1/2 twist of left or right face

3 "backward" of left or right face

URF orient the cube to work on named face,

with your right hand. Names are lambda-bound from the

start of the transformation. To instantiating a transformation

one can simply substitute the color for the orientation label

notation is <letter><right hand><(optional) left hand>

For example, a sprat wrench: UDLRFB calls it: RL' U RL' B RL' D RL' F. I call it: R11 U1 R11 F03 R11 U03 R11 F1 -------