4x4 - Reduction Method

Solve First Two Centers

Solve the center pieces for two opposite faces.

Only Case

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Solve Second Two Centers

Solve the center pieces for two other adjacent faces.

Only Case

-

Solve Last Two Centers

Solve the center pieces for the last two faces.

Case 1

d' F' d

Case 2

d' F2 d

Case 3

d' F' d F2 d' F' d