Dot, L, line, cross.

Flip your attention to the top. Ignore corners completely — this stage only cares about the four yellow edge stickers, and they're currently showing one of four patterns:

Dot — run the algorithm 3 times total.

L-shape — hold it top-left, run twice.

Line — hold it horizontal, run once.

Cross — done. Skip ahead.

Yellow cross

F R U R' U' F'

Sandwich: F opens, the trigger's first four moves run, F' closes.

Play on the 3D cube

1Identify your pattern: dot, L, or line.
2Hold the cube so an L sits in the back-left corner of the top face, or a line runs horizontally. The dot works from any angle.
3Run F R U R' U' F'. The pattern climbs one rung: dot → L → line → cross.
4Re-orient per step 2 and repeat until the yellow cross appears.

Tip

Notice you already know every move in this algorithm — F, then the trigger, then F'. From here to the end of the solve, nothing new is asked of your hands, only of your eyes.

See it on the cube

Yellow cross

F R U R' U' F'

Yellow on top, green in front: the case is set up first, then the algorithm plays one move at a time. Drag the cube to look around it.

Back to Yellow cross

Try it yourself

Do it on the cube

2 short exercises with this lesson's algorithm. You turn the cube; it checks the result and helps with any wrong turn.

You have a line, held horizontally. Make the yellow cross.
An L, held at the back-left. Climb to the cross.