Everyone here should know about Rubik's Cubes. If not, you might not be prepared for this problem.

So the cube above is 1 of the 43 quintillion possible combinations for the cube. Look closely. You can see there are 2 stickers of the same color next to each other. In fact, in the picture, there are 4 of those blocks.

The question is "How many combinations are there that don't contain any of those blocks in any of the 6 faces of the cube? If there are none, what is the minimum number of blocks available?"

Looking forward to great solutions!

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## Comments

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TopNewestThere does exist this kind,but I'm not sure about how many.

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Yes, there are many such possible cases.

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You should ask the staff and moderators

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How? Do I mention them?

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Calvin Lin's messageboard - 4

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