Tuesday, April 10, 2018

Why can't I have only one edge piece flipped on a 3X3 Rubik's cube?



I was using the beginner method to deliberately solve a 3X3 cube with one edge piece flipped. But, by the time I got to the top I discovered that I couldn't solve it with only one edge flipped. I had to also flip an edge on the top layer. Why is that?



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