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Roux method.gif
Proposer(s): Gilles Roux
Proposed: 2003
Alt Names: Last Six Edges, L6E
Variants: ELL, L5E, L7E
No. Algs: 0 (intuitive)
Avg Moves: 11.1 STM (optimal)
Previous state: 6 Edges missing UM cube state
Next state: Solved cube state

6 Edges missing UM cube state -> LSE step -> Solved cube state

The LSE step is the step between the 6 Edges missing UM cube state and the Solved cube state.

LSE, also called L6E, short for Last Six Edges, is a possible last step in 3x3 speedsolving that solves the M-slice centers and edges (UF, UB, DF, DB) together with UL and UR edges. It is the last step of the Roux Method and the Ortega Method.

Possible approaches

LSE can be solved in various ways; Gilles Roux himself, the inventer of the Roux Method, advocates a flexible/semi-intuitive approach to LSE without a strict division into substeps. The optimal approach is likely a combination of the approaches below.

Layers-based approach

  • 1. centers, BD, and FD
  • 2. ELL

This layer-based approach seems out of place in any method ending with LSE.

Original Roux

  • 1. Orient centers and edges
  • 2. Permute UR and UL edges
  • 3. Permute the M slice

The following two approaches are commonly used in Corners first methods.

Corners First approach 1

  • 1. Solve UL or UR
  • 2. Insert UL/UR while orienting the M slice
  • 3. Permute the M slice

Corners First approach 2

  • 1. Solve both UL and UR
  • 2. Orient and permute the M slice

Reduction to L5E has been proposed as an experimental approach.


  • 1. Centers and BD
  • 2. L5E


  • 1. Orient all edges
  • 2. Permute all edges with L6EP

External links