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Without even memorizing it, I can do this one as fast as my current T perm / PLL parity fix approach. I suspect it would be faster if I practiced it a bit.
Now I need to decide whether or not I should bother to learn it. It is interesting what it does on a 5x5x5, but it would take a bit of reworking for me to be able to use it there.
In any event, I'm still surprised the algorithms for this are as long as they are. I was always convinced that there would be some 12 or 14 move algorithm to swap two corners on even cubes, and we were all just missing it. (I didn't have any reason to be convinced; it was just a silly gut feeling.)
Now I need to decide whether or not I should bother to learn it. It is interesting what it does on a 5x5x5, but it would take a bit of reworking for me to be able to use it there.
In any event, I'm still surprised the algorithms for this are as long as they are. I was always convinced that there would be some 12 or 14 move algorithm to swap two corners on even cubes, and we were all just missing it. (I didn't have any reason to be convinced; it was just a silly gut feeling.)