7 º Step - Orienting the top vertices
Well, last step! This step is quite simple, their algorithm consists of only 4 steps.
The problem here is that we will not know if we're wrong but to complete it, because as we orient the vertices we see that the cube is taken apart (it's frustrating), but finally settles.
First see if any of the 4 vertices not already orie NTAD the previous step and take this as a reference (turn around bucket) putting the apex pointing and right. Now we turn only face up ( Ar) counterclockwise ( i ) and proceed with the first vertex disoriented, once we got repeat the previous step: Ari.
may guide the vertex we should repeat the algorithm up to 4 times inclusive, so do not despair and dye lot of patience, because mistakes at this stage are fatal. Well, here is the algorithm:
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