Step 1
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The corners of the 1st layer When the corners are completely processed, your cube will look like this:
No particular algorithm.
The placement of pieces must remain intuitive.
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Step 2
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The edges of the 1st layer When all the edges have been processed, your cube will look like this:
You will first have to work on the Left-Back edges then on the Front-Back edges.
In each case, it will be necessary to carry out R movements in order to place the 2 edges with the white side at the top and in alignment with the cube.
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Left-Right - Case a The edges are poorly oriented but well placed
The algorithm helps guide them.
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Left-Right - Case b The edges are poorly oriented and poorly placed
The algorithm helps guide them.
You can then apply the algorithm of case c.
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Left-Right - Case c The edges are poorly placed (but well oriented)
The algorithm allows them to be placed.
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Front-Back - Case a The edges are poorly oriented but well placed
The algorithm helps guide them.
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Front-Back - Case b The edges are poorly oriented and poorly placed
The algorithm helps guide them.
You can then apply the algorithm of case c.
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Front-Back - Case c The edges are poorly placed (but well oriented)
The algorithm allows them to be placed.
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Step 3
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The centers of the 1st and 3rd layers When the centers have been processed, your cube will look like this:
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The algorithm will exchange the Up/Down centers.
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Step 4
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The 2nd and 3rd layer When the layers have been processed, your cube will look like this:
Simply make between 0 and 11 half-turns of the bottom layer (Dx movement).
With a little experience, it is possible to make U-turns in the opposite direction (Dx' movement). The maximum number of U-turns can therefore be limited to 5.
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Example 1 U-turn
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Example 2 half turns
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Example 3 half turns
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Example 6 half turns
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Example 9 U-turns
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Example 3 opposite half-turns
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