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Unpainting Black (Posted on 2017-07-14) Difficulty: 4 of 5
Like in Paint it Black, twenty-seven identical white cubes are assembled into a single cube; then the outside of that cube is painted black.

The cube is then disassembled and rebuilt randomly.

What is the probability that the outside of this cube is now completely white?

No Solution Yet Submitted by Brian Smith    
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  Subject Author Date
Details of the resultsCharlie2017-07-15 11:29:16
Solutioncorrected program with revised answerCharlie2017-07-14 22:20:16
Some Thoughtsproposed computer solutionCharlie2017-07-14 17:05:24
re: Preliminary work & thoughtsCharlie2017-07-14 10:13:03
Some ThoughtsPreliminary work & thoughtsJer2017-07-14 09:35:58
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