Step 1
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The Corners of the First Layer When the corners are fully solved, your cube will look like this:
No particular algorithm.
The placement of the pieces should remain intuitive.
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Step 2
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The Edges of the First Layer When all the edges have been solved, your cube will look like this:
First, you will need to work on the Left-Back edges, then on the Front-Back edges.
In each case, you will need to make R moves to position the two edges with the white face up and aligned with the cube.
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Left-Right - Case a The edges are incorrectly oriented but correctly positioned
The algorithm allows you to orient them.
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Left-Right - Case b The edges are incorrectly oriented and incorrectly positioned
The algorithm allows you to orient them.
You can then apply the algorithm for case c.
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Left-Right - Case c The edges are incorrectly positioned (but correctly oriented)
The algorithm allows you to place them.
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Front-Back - Case a The edges are incorrectly oriented but correctly placed
The algorithm allows you to orient them.
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Front-Back - Case b The edges are incorrectly oriented and incorrectly placed
The algorithm allows you to orient them.
You can then apply the algorithm for case c.
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Front-Back - Case c The edges are incorrectly placed (but correctly oriented)
The algorithm allows you to place them.
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Step 3
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The centers of the 1st and 3rd layers Once the centers have been processed, your cube will look like this:
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The algorithm will swap the Up/Down centers.
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Step 4
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The 2nd and 3rd layers Once the layers have been processed, your cube will look like this:
Simply make between 0 and 11 half-turns of the bottom layer (Dx move).
With a little experience, it is possible to make the half-turns in the opposite direction (Dx' move). The maximum number of half-turns can therefore be limited to 5.
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Example 1 half-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 half-turns
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Example 3 opposite half-turns
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