Last update on September 1, 2008 by Paolo Scalia
Third step
The basic idea of this method is to resolve the whole Rubik Cube of moving from here only the two sides free, but if we try to do that we realize that some edges are not always well-oriented. In this pitch will orienteremo.
Basically we have to do two things:
- understand what corners among the seven remaining are not well oriented. To do so we can bring each of the seven corners in the position it should occupy in the Cube, and then between the two central cubes that have the same colors, and realise if the line is right or not. Once we know we should not try to put them in place as this will be done later;
- orient the corners evil oriented. There is always an equal number of male-oriented edges, 0, 2, 4, 6, and then you can put them in place in pairs. The easiest way is the sequence of three moves shown in the figure.
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Because we only know whether an edge would be shot in the right way if put in his position, we do not need to waste moves actually moving there.
It's easy to see immediately what corners are shot on the contrary, without moving. We call the colors of the two sides of the central cubic free (the only ones that we have to take into account) A and B.
There are four simple rules to remember:
- an edge in the A side which has one side in color A near the central cube A is shot in the right direction [1];
- an edge in the A side which has one side in color A far from the central cube A is shot in the wrong [2];
- an edge in the B side which has one side in color A cube near the central B is shot in the wrong [3];
- an edge in the B side which has one side in color A far from the central cube shot in right direction [4].
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