Cubology
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3x3
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Petrus
Petrus (Lars Petrus)
Build a 2x2x2 block, extend it to 2x2x3, orient the edges, finish F2L with R and U, then the last layer.
Full guide: Petrus
Stages
1
Blocks
A 2x2x2 block, then extend it to a 2x2x3.
Show how ▸
2
Edge orientation
Flip the bad edges so the rest needs only R and U turns.
Show how ▸
3
F2L
Finish the first two layers with R and U turns.
Show how ▸
4
Last layer
Edges already oriented: OCLL then PLL, COLL then EPLL, or one ZBLL.
Show the algorithms (68 cases) ▸
3x3
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CFOP (Fridrich)
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