- Apr 28, 2008
It looks like four swaps to me...For example, consider the turning of one face by 90 degrees:
C1 E1 C2
C4 E3 C3
C4 E4 C1
C3 E2 C2
The new corner state can be obtained via 3 swaps (swap C1/C4, swap C1/C3, swap C1/C3, swap C1/C2).
Thanks in advance
EDIT: Sorry, but somehow the edges got messed up...