Cubik

Not to be confused with Cubix.

Please note than my english can be bad. My local languague is not english. Cubik is an esoteric programming language created by User:Fabiot, which was made to be programed with a wikipedia:Rubix's Cube, hence the name. By now, it's only in its first version (v1.0). Without further ado, lets see the:

Commands!!! (or better said, turns)

Make it so that the front layer is green and the upper layer is white. Good moment to say that I don't know if Cubik is Turing-complete.

Stack turns

Turn	What it does
U	Push 0 to the stack
U'	Pop a value from stack and do nothing
U2	Duplicate top value of the stack
D	Swap the top two values on the stack

Open (remember) register

Turn	What it does
D'	Pop a value from the stack and remember it
D2	Push the last remembered value into the stack, then forget it

Aritmethic

Turn	What it does
M	No-op
M'	Increment the top value of the stack by one
M2	Decrement the top value of the stack by one
L	Pop A and B, then push A plus B
L'	Pop A and B, then push A minus B

I/O

Turn	What it does
B'	Push a UTF-8 character from input to the stack
B2	Pop the top value of the stack and output it as a UTF-8 character

Flow control

Turn	What it does
R	Pop from the stack, and jump to the label matching the value popped
R'	If the second top-most value is 0, jump to the label matching the top-most value of the stack. This does not change the stack
R2	End the last label if there was one and define a new label starting here

The most important turns

Turn	What it does
F	Start program
F'	End program, but don't halt it

Better say now that it doesn't have an official interpreter, so I'm challenging you to program an interpreter.

Examples!

Does nothing

F
M
F'

Cat program

F
B'
B2
F'

A+B Problem

F
B'
M
B'
L
B2
F'

You can discuss for more examples!