OK, I don't get it. I'm messing around with 3-2-2-2-3 edge pairing for the 4x4x4 and keep on getting 3/2/0 or 4 for the last set of edges to pair. What is going on? Why am I getting 4 in the end?
I start the edge pairing with the centers aligned, then pair 3, then I pair two, while keeping one pair from the previous step in the line of fire (in the horizontal plane where I am pairing the edges), then I pair 2 two more times, now my centers are aligned and sometimes I am left with 4 edges that still need to be paired up, clearly I am doing something wrong, but I can't figure out what it is!
I've looked for a good explanation of 32223, but I can't find one.
What am I doing wrong?