# Layer by layer

 LBL (3x3x3) method Information about the method Proposer(s): none Proposed: 1980s Alt Names: none Variants: CFOP, 8355 No. Steps: 5+ No. Algs: 6 to 16 (depending on LL) Avg Moves: unknown Purpose(s):

Layer-By-Layer, or normally only LBL is a group of methods that solves the cube in layers. In the basic, beginner LBL method, the solver finishes the layers one at a time: the first layer edges, then corners; then the second layer's edges; and finally the last layer. This is the most common method for new cubers to discover on their own. More advanced LBL methods solve layers more efficiently or solve two layers at once: for example, the Fridrich method solves the first two layers simultaneously, by forming a cross of the first layer's edges and then filling in four pairs of a corner and an edge into the so-called slots.

## 3x3x3 LBL Method

Also known as LBL. Solves the cube in layers: First the bottom layer, then the middle layer, and finally the top layer or LL. As a slight advancement to basic Layer By Layer, the Keyhole method can be used to enable solving of the middle layer in fewer moves.

## 2x2x2 LBL Method

 LBL (2x2x2) method Information about the method Proposer(s): none Proposed: 1980's Alt Names: none Variants: CLL No. Steps: 3 No. Algs: 2 to 9 (depending on LL) Avg Moves: unknown Purpose(s):

Done as if solving the 3x3 corners using the Layer-By-Layer method. Shorter last layer algs may be used since there are no edges to be keped in position on a 2x2. There are two options for the last layer in a beginner 2x2 solve:

• Orientation followed by Permutation
• Permutation followed by Orientation