Regexp-based solution (finds only unique solutions for the puzzle and is very fast :))

The solution posted 5 days ago wasn't a solution at all :)
I just realised that it solved a bit another puzzle :)

The updated pure rexep-based version is here:</p

<Reveal this spoiler or all in this thread>

In reply to Re: Challenge: "Insanity" Cube Puzzle by Ieronim
in thread Challenge: "Insanity" Cube Puzzle by liverpole

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