Cycle 4
Step 1 / 13
M': Middle slice (turns like the Left face): turn 90°, front face goes up
Back and right are flipped. The back edge is home; the right edge has the front center's color.
White on the bottom, with the top corners lined up with the centers.
Step 1 of 13: M'. Middle slice (turns like the Left face): turn 90°, front face goes up