First Antipodal Process (25 q, 20 q) UR13 = U2 R1 U3 R2 U3 R2 U3 R1 U2 R3 U1 R3 U3 R1 U1 R2 U1 R3 U1 R3 Also.... UR13 ^ 2 = I
Using current techniques, this required a run of about 11 hours.
It remains to be seen how the Kociemba algorithm resolves this
position, and I will try this next.
You mean: F2 U3 D2 L3 D3 R1 U2 B2 R1 B2 R3 D1 L1 D3 R2 U1 D3 (or rather its inverse)? Took Kociemba's algorithm 10 minutes. I do not yet know whether this is minimal.