The white layer and middle layer are complete.
Yellow up. For a line, put yellow edges at left and right. For an L, put them at back and left.
Look straight down at the top. Front is the edge nearest you. Grey stickers are not part of this check.

No yellow edges face up. Any face can be at the front.

Yellow edges at back and left.

Yellow edges at left and right.

All four yellow edge stickers face up. Move on.
1. Check only the four top edges
Ignore the corners, even if they are yellow. Around the yellow centre you will see a dot (zero yellow edges up), an L (two adjacent), a line (two opposite), or a cross (all four).
A correctly assembled 3×3 cannot have exactly one or three yellow edges facing up when the first two layers are solved. Recount the edges before assuming the case is unusual.
2. Set up the shape
| Shape | Hold it this way | What happens next |
|---|---|---|
| Dot | Any front, yellow up | The sequence makes an L. Check the new shape and set it up again. |
| L | Yellow edges at back and left | The sequence makes a line. Position it so it runs left–right. |
| Line | Yellow edges at left and right | The sequence makes the cross. |
| Cross | Already finished | Skip this sequence and continue. |
Use U or rotate the whole cube sideways before the sequence to position the shape. Keep the front fixed during the moves.
3. Do the six moves
F R U R' U' F'
Think “front turn, four-move trigger, reverse the front turn”. Complete the final F′ to restore the front layer.
Recount the yellow edge stickers facing up after each full sequence. A dot takes up to three applications of the sequence, an L takes two, and a correctly positioned line takes one. Identifying the new case between applications matters more than speed.
4. Stop once you have a yellow cross
The side colours of the yellow edges do not need to match their centres yet. Yellow corners also do not need to face up. Those jobs come later; preserve the first two layers and continue to corner orientation.
Need a reminder of the move notation?
R right · L left · U top · D bottom · F front · B back. A letter on its own means a 90° clockwise turn when you look directly at that face. A prime mark (′) reverses the turn. A 2 means 180°. Keep the same face at the front throughout an algorithm.
Watch, then try
Work through an example
Start by going through the moves one at a time. The prepared example shows a specific action. Use the lesson’s setup instructions to recognise when to apply it to your own scramble.
Watch one worked example
This example starts with a left–right yellow line. Watch the four edge stickers on U; the final F′ restores the lower layers and completes the cross.
Starting grip. Yellow up · blue at the front · red on the right. Follow any written instructions for rotating the whole cube.
0 / 6
Loading 3D cube…
Prepared position · 0 / 6 moves
Use Next move to follow the sequence.
Drag to inspect other faces. Use the arrow keys to rotate the view when the cube has focus.
Copy this exact example on your own cube
Start with a solved 3×3 with yellow facing up and blue facing front. Apply the setup moves below from left to right to create the example’s starting position. Keep this example separate from the scramble you are solving as you work through the course.
F U R U' R' F'Then follow the lesson sequence. If your cube’s colour scheme differs, match the piece relationships using your own colours.
Compare the starting position and the result
Drag each cube to inspect its other faces.
Another case: Start with an L
Start with an L
Yellow edges start at back and left. The first six moves make a left–right line; the next six complete the cross. Pause after move 6 and identify the line.
Starting grip. Yellow up · blue at the front · red on the right. Follow any written instructions for rotating the whole cube.
0 / 12
Loading 3D cube…
Prepared position · 0 / 12 moves
Use Next move to follow the sequence.
Drag to inspect other faces. Use the arrow keys to rotate the view when the cube has focus.
Copy this exact example on your own cube
Start with a solved 3×3 with yellow facing up and blue facing front. Apply the setup moves below from left to right to create the example’s starting position. Keep this example separate from the scramble you are solving as you work through the course.
F U R U' R' F' F U R U' R' F'Then follow the lesson sequence. If your cube’s colour scheme differs, match the piece relationships using your own colours.
Compare the starting position and the result
Drag each cube to inspect its other faces.
Another case: Start with a dot
Start with a dot
No yellow edges face up at the start. The first six moves make an L. U2 at move 7 places it at the back-left. The next six moves make a left–right line, and the final six complete the cross. Pause after moves 7 and 13 to recognise the new case.
Starting grip. Yellow up · blue at the front · red on the right. Follow any written instructions for rotating the whole cube.
0 / 19
Loading 3D cube…
Prepared position · 0 / 19 moves
Use Next move to follow the sequence.
Drag to inspect other faces. Use the arrow keys to rotate the view when the cube has focus.
Copy this exact example on your own cube
Start with a solved 3×3 with yellow facing up and blue facing front. Apply the setup moves below from left to right to create the example’s starting position. Keep this example separate from the scramble you are solving as you work through the course.
F U R U' R' F' F U R U' R' F' U2 F U R U' R' F'Then follow the lesson sequence. If your cube’s colour scheme differs, match the piece relationships using your own colours.
Compare the starting position and the result
Drag each cube to inspect its other faces.
Explain it to yourself
Check your understanding
Now use your own cube
Your turn
Count only the yellow edge stickers facing up. Choose the matching case, perform the sequence, then identify the new case before repeating it.
Open a 3×3 Digital Cube for practiceOpens in a new tab so you can refer to this lesson while you practise. Check for yourself whether you’ve met the lesson goal. The Digital Cube does not grade your work.
If you get stuck
The pattern does not change as expected.
Ignore the yellow corners and set up the shape again. Hold the L at the back-left or the line left–right. Make sure you include the final F′.
I see one or three yellow edges facing up.
Check that the lower layers are solved and count only edge pieces. This can be a parity case on a 4×4. On a correctly assembled 3×3, this is not a normal case.
Before moving on
Check your result

Your cube at this stage
A yellow cross on top
All four yellow edges face up. Yellow corners and the side colours of the top edges may still need work.
Confirm these on your cube. Watching the animation alone does not complete the lesson.
Tick each item once you can do it yourself.