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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 of the four sides matches its centre.

Before you start

An aligned white cross on the bottom.

How to hold your cube

White down. Rotate sideways to put the empty target slot at bottom-front-right.

1. Choose a corner and find its home

Find a white corner in the top layer and look at its other two colours. A white-blue-red corner belongs in the slot between the white, blue and red centres, regardless of which slot is closest.

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

2. Put the corner above its destination

Turn only U until the corner you want to insert reaches top-front-right (UFR), directly above its slot. White can face up, towards the front or towards the right. Use the same routine for all three cases.

3. Repeat the trigger until this corner is solved

R U R' U'

Complete one repetition, then check the bottom-front-right slot. Keep the same grip and repeat without adding any U turns between repetitions. Stop when the corner is in that slot with white facing down and both side colours matching their centres.

Depending on which way the white sticker faces at the start, this takes one, three or five repetitions. Finish all four moves each time. The other bottom corners and the cross return to their original positions after each full repetition.

4. Recover a corner trapped below

If a white corner in the bottom layer is out of place or twisted, rotate the whole cube sideways to put that 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

After solving 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. Check the bottom row on every side before moving on. If the bottom face is solid white but the side rows don’t match their centres, keep working on the corners.

Need a reminder of the move notation?

R right · L left · U top · D bottom · F front · B back. A plain letter means a 90° clockwise turn as you look directly at that face. An apostrophe (′) reverses the turn. A 2 means a 180° turn. Keep the same face towards you throughout the algorithm.

Watch, then try

Work through an example

Start by stepping through the example one move at a time. This example demonstrates a specific action. Use the lesson’s setup instructions to recognise when that action applies to 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: yellow up · blue front · red right at the start. Follow any written whole-cube rotations.

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Loading 3D cube…

Drag to inspect other faces. When the cube has focus, use the arrow keys to rotate the view.

Copy this exact example on your own cube

Start with a solved 3×3, with yellow on top and blue facing you. Follow the setup moves below from left to right to recreate the example’s starting position. Keep this example separate from the scramble you’re solving throughout the course.

U R U' R'

Then follow the lesson sequence. If your cube has a different colour scheme, use your own colours to identify the corresponding 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 begins with white up. Keep your front fixed and finish three complete triggers to insert it.

Example grip: yellow up · blue front · red right at the start. Follow any written whole-cube rotations.

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Loading 3D cube…

Drag to inspect other faces. When the cube has focus, use the arrow keys to rotate the view.

Copy this exact example on your own cube

Start with a solved 3×3, with yellow on top and blue facing you. Follow the setup moves below from left to right to recreate the example’s starting position. Keep this example separate from the scramble you’re 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 your own colours to identify the corresponding 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 complete triggers. Pause after each group of four moves and go straight into the next group without adding setup turns.

Example grip: yellow up · blue front · red right at the start. Follow any written whole-cube rotations.

0 / 20

Loading 3D cube…

Drag to inspect other faces. When the cube has focus, use the arrow keys to rotate the view.

Copy this exact example on your own cube

Start with a solved 3×3, with yellow on top and blue facing you. Follow the setup moves below from left to right to recreate the example’s starting position. Keep this example separate from the scramble you’re 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 your own colours to identify the corresponding 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 be before you insert it?

Now use your own cube

Your turn

Find a white corner, name its two side colours, put it directly above its home, and insert it. Repeat for all four corners. Check the cross after each insertion.

Open a 3×3 Digital Cube for practice

The Digital Cube 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, as 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 find the corner’s slot. Rotate the whole cube to put that slot at the front-right, then turn U to bring the corner directly above it.

The cross is broken after an insertion.

Finish all four moves. If the cross is still broken, check that you used U′ as the fourth move and kept the same face at the front throughout the trigger.

Before moving on

Check your result

3×3 lesson result: The first layer is solved. The bottom face is white and the bottom row of every side matches its centre. The middle and top layers are still unfinished.

Your cube at this stage

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 when you can do it yourself.

Scan your cube

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

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