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Lesson 3 of 9

First layer · Lesson 3

Finish the white layer

Insert all four white corners so the bottom face is white and the bottom row on each side matches its centre.

Before you start

An aligned white cross on the bottom.

How to hold your cube

Keep white down. Rotate the whole cube sideways to put the empty target slot at bottom-front-right.

1. Choose a corner and find where it belongs

Find a white corner in the top layer and check its other two colours. A white-blue-red corner goes in the slot between the white, blue and red centres, even if another slot is closer.

Rotate the whole cube sideways, keeping white down, until those two side centres are at the front and on the right. The destination is now bottom-front-right (DFR).

2. Put the corner above its destination

Turn only U until your target corner reaches top-front-right (UFR), directly above its slot. Its white sticker may face up, towards the front or to the right. Use the same sequence for all three cases.

3. Repeat the trigger until this corner is solved

R U R' U'

Perform one full repetition, then check the bottom-front-right slot. Keep the same grip and repeat without any extra U turns between repetitions, until the corner is in the slot with white facing down and both side colours matching.

Depending on which way the white sticker faces at the start, this takes one, three or five repetitions. Always finish all four moves before stopping. The other bottom corners and the white cross return to their places after each full repetition.

4. Recover a corner trapped below

If a white corner is in the bottom layer but is out of place or twisted, rotate the whole cube sideways to put its slot at bottom-front-right. Perform the trigger once to bring the corner into the top layer. Find its correct slot, put the corner directly above it and follow step 3.

5. Repeat without losing your reference

Once you’ve solved one corner, choose the next white corner and rotate the whole cube sideways to put its slot at the front right. Finish all four corners. Before you move on, check the bottom row on each side. If the bottom face is all white but the side rows do not match, the corners still need work.

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 as you look directly at that face. An apostrophe (′) reverses the direction. A 2 means a 180° turn. Keep the same face at the front throughout the algorithm.

Watch, then try

Work through an example

Start by stepping through one move at a time. This prepared example shows a specific action. Use the lesson’s setup instructions to recognise when to use it on your own scramble.

Watch one worked example

Follow the white-blue-red corner above the front-right slot. In this prepared orientation, one complete trigger inserts it and restores the white cross.

Example grip: Start with yellow on top, blue at the front and red on the right. Follow any written instructions for rotating the whole cube.

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Loading 3D cube…

Drag to inspect other faces. Use the arrow keys to rotate the view when the cube has keyboard focus.

Copy this exact example on your own cube

Start with a solved 3×3, with yellow on top and blue at the 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 throughout the course.

U R U' R'

Then follow the lesson sequence. If your cube has a different colour scheme, use the relationships between your own colours to identify the equivalent pieces.

Compare the starting position and the result
Before the example
After the full sequence

Drag each cube to inspect its other faces.

Another case: White faces up

White faces up

The same corner starts with its white sticker facing up. Keep the same face at the front and perform the full trigger three times to insert it.

Example grip: Start with yellow on top, blue at the front and red on the right. Follow any written instructions for rotating the whole cube.

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Loading 3D cube…

Drag to inspect other faces. Use the arrow keys to rotate the view when the cube has keyboard focus.

Copy this exact example on your own cube

Start with a solved 3×3, with yellow on top and blue at the 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 throughout the course.

U R U' R' U R U' R' U R U' R'

Then follow the lesson sequence. If your cube has a different colour scheme, use the relationships between your own colours to identify the equivalent pieces.

Compare the starting position and the result
Before the example
After the full sequence

Drag each cube to inspect its other faces.

Another case: White faces front

White faces front

This orientation needs five full repetitions of the trigger. Pause after each group of four moves. Begin the next group without adding any setup turns.

Example grip: Start with yellow on top, blue at the front and red on the right. Follow any written instructions for rotating the whole cube.

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Loading 3D cube…

Drag to inspect other faces. Use the arrow keys to rotate the view when the cube has keyboard focus.

Copy this exact example on your own cube

Start with a solved 3×3, with yellow on top and blue at the 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 throughout the course.

U R U' R' U R U' R' U R U' R' U R U' R' U R U' R'

Then follow the lesson sequence. If your cube has a different colour scheme, use the relationships between your own colours to identify the equivalent pieces.

Compare the starting position and the result
Before the example
After the full sequence

Drag each cube to inspect its other faces.

Explain it to yourself

Check your understanding

Where should the corner start before you insert it?

Now use your own cube

Your turn

Find a white corner, name its two side colours and move it directly above its matching slot. Insert it, then check the white cross. Repeat for all four corners, checking the cross after each insertion.

Open a 3×3 Digital Cube for practice

Opens in a new tab so you can keep this lesson open while you practise. Check for yourself whether you’ve met the lesson goal. The Digital Cube doesn’t assess your result.

If you get stuck

The corner keeps returning to the wrong slot.

Use both non-white colours to identify the corner’s correct slot first. Rotate the whole cube to put that slot at the front right, then use U to move the corner above it.

The cross is broken after an insertion.

Finish all four moves. If it is still broken, check that you used U′ as the fourth move and did not rotate the whole cube during the trigger.

Before moving on

Check your result

3×3 lesson result — First layer solved. The bottom face is white and the bottom row on each side matches its centre. The middle and top layers are still unfinished.

Your cube at this stage

The first layer solved

The bottom face is white and the bottom row of every side matches its centre. The middle and top layers are still unfinished.

Confirm these on your cube. Watching the animation alone does not complete the lesson.

Tick each item once you can do it yourself.

Scan your cube

Scan the QR code with your phone to open Cube Solver, then use the app to scan your cube. Keep this page open while you scan.

Tap “Open scanner” to scan your cube in the app on this phone. Return to this browser for the solution.

  1. Open your phone’s camera.
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  3. Follow the instructions in Cube Solver.
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