Corners First
From Speedsolving.com Wiki
| ||||||||||||||||||||||
Corners First methods, abbreviated as CF, are speedcubing methods that solve all of the corners (relative to each other) before anything else. There are not very many serious CF solvers for 3x3x3 these days, because it is very difficult to get under 20 seconds with a pure CF method, but CF methods are relatively easy to invent and were very popular in the 1980s. At least in theory, CF methods exist for all puzzles with corners, although for many puzzles (such as big cubes) they are impractical for speedsolving. For the 2x2x2, on the other hand, there are only corners, so any method is in effect a CF method, and ideas from 2x2 solving can be applied to CF methods on any larger cube puzzle. The most popular methods for solving the corners are Guimond, Ortega, and CLL; there are many ways to do the edges, perhaps the most efficient of which is the Waterman method.
See also:
Beginner CF Methods
There are no specifically named methods in this group, but a typical beginner CF method may look like this:
Corners:
- Solve the corners of the first layer using intuition.
- Orient the LL corners using R U R' U' R' F R F' or a similar algorithm.
- Permute the LL corners using a 3 cycle of corners (A Permutation)
Centres:
- Move centres into position using slice turns (trivial).
Edges:
- Place the edges of the E layer using moves like (AUF) + M' R U' M U R'.
- Place the edges of first layer using M' U M or M' U2 M.
- Orient the last layer edges using EOLL.
- Permute the last layer edges with EPLL (for the most basic methods this can be done with only the U-perm).
