90 Degree Rotation
If you have centers that are rotated by 90 degrees then there will always be 2, 4 or 6 centers that need to be solved by 90 degree rotation. Rotating one center clockwise, will rotate another center anti-clockwise.
Hold the cube with the centers to be rotated in the Left and Top (Up) faces.
The following steps will rotate the center on the left Clockwise whilst also rotating the center on the top anti-clockwise
The following steps will rotate the center on the left Clockwise whilst also rotating the center on the top anti-clockwise
180 Degree Rotation
The following steps will rotate the center on the Top face 180 degrees.
These algorithms can also be used on shape-mod cubes like a fisher cube, windmill cube, axis cube etc.
See video instructions below: