>> Take a standard Rubik's cube and rotate one face 90 degrees. Then rotate
>> an adjacent face 90 degrees in the same direction. How many times do you
>> have to repeat those two moves (repeatedly on the same two faces) before
>> the cube gets back to the same state it started in?
>>
> There is a Rubik's cube in the IRTC (as source). It can be
> programmed/shuffled with a string of text... so goes on topic and render
> a few frames with the string generated according to the frame number.

Interesting ... I needn't have written the SDL code to draw my own one 
then :-) Still I'm interested in why the answer is so high for an 
apparently simple system, but I'm having a hard time trying to visualise 
in simpler terms what is going on.

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