Step 1
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The Up and Down sides When the faces are completely processed, your puzzle 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 layer 1 When layer 1 has been processed, your puzzle will look like this:
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Case a The opposite pieces Front-Left and Back-Right are poorly placed
The algorithm allows them to be swapped.
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Case b Adjoining pieces Front-Right and Back-Right are poorly placed
The algorithm allows them to be swapped.
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Step 3
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The layer 3 When layer 3 has been processed, your puzzle will look like this:
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Case a The opposite pieces Front-Left and Back-Right are poorly placed
The algorithm allows them to be swapped.
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Case b Adjoining pieces Front-Right and Back-Right are poorly placed
The algorithm allows them to be swapped.
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Step 4
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The layer 2 When layer 2 has been processed, your puzzle will look like this:
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Case a Adjoining pieces Front-Right and Back-Right are poorly placed
The algorithm allows them to be swapped.
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Case b Adjoining pieces Front-Left and Front-Right as well as adjacent pieces Back-Left and Back-Right are poorly placed
The algorithm allows them to be swapped.
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