L4E — Last Four Edges

The 3-cycle

When learning L4E it’s recommended to first use M2 to get U center to the U layer for easier recognition. As you get more used to L4E, you can solve directly even when the U center is in D layer.

If one of four edges is already solved, it is a 3-cycle case. One edge will have both stickers not matching adjacent centers. There are four unique cases based on which slot this edge is in — U or D layer, front or back. All four have mirrored versions (swap every M ↔ M') that are omitted from the guide.

1. Non-matching edge in U layer (front)

Solution U2 M U2 M'

2. Non-matching edge in D layer (front)

Solution M' U2 M U2

3. Non-matching edge in U layer (back)

Solution M U2 M U2 M2

4. Non-matching edge in D layer (back)

Solution M2 U2 M U2 M

Non-cycle cases

1.

Solution U2 M2 U2 M2

2.

Solution M' U2 M2 U2 M'

3.

Solution M E2 M E2

This case is the exception from the M, U2 moveset. Alternative solution is U2 M' U2 M2 U2 M' U2, but it is slower than the recommended solution.

Where to next

• All guides — revisit any step.