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Lesson 5 of 6

Solve the reduced cube · Lesson 5

Solve the reduced 5×5 like a 3×3

Use the 3×3 solving stages with outer turns while keeping the grouped pieces together.

Before you start

Six solved centre blocks and twelve fully matched edge groups.

How to hold your cube

White centre down, yellow up. Treat every centre block and edge group as one large piece.

1. Treat the reduced cube like a 3×3

A whole centre block acts like one centre. A complete three-piece edge group acts like one edge. The actual corner pieces already behave like 3×3 corners.

From now on, use only outer R, U, F, L, D and B turns for the usual solving steps. R turns only the outer layer. Using Rw instead breaks up the grouped pieces.

2. Follow the same checkpoints

Order Target Instructions
1 White edge groups aligned with centres Daisy, then white cross
2 White corners solved and each bottom side row matches its centre First layer
3 Middle edge groups match their centres Middle edges
4 Yellow faces up on four edge groups Yellow cross
5 Yellow faces up on the top corners Yellow corners
6 Top corners match the side centres Corner positions
7 Remaining edges complete all faces Final edges

Keep your physical 5×5 in its current state when opening a linked explanation. Its pictures show smaller pieces, but the outer-turn relationships are the same. Skip a stage if its checkpoint is already satisfied.

3. Recognise when to leave the ordinary path

Correct 5×5 reduction does not introduce 4×4-style OLL or PLL parity. If you appear to have an impossible 3×3 case, inspect all three pieces of every edge. A reversed wing or unmatched midge means pairing was unfinished; return to the last-edge lessons before continuing. Do not apply the 4×4 PLL repair.

4. Keep your grouped pieces intact

After each algorithm, every centre must still be a solid block and every edge must still be a complete group. A single outer turn can’t split a matched group. If grouped pieces have come apart, check whether you accidentally included an inner or wide turn in your 3×3 sequence.

The animation below reviews the final three-edge cycle. Watch how each edge group moves as a unit. This is one stage of solving the reduced cube; use the sequence only when the case calls for it.

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.

Rw turns the rightmost two layers together. 2R turns only the second layer from the right. 3Rw turns three layers. x rotates the whole cube like R, so the old front becomes the new top.

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

The outer-turn edge cycle works across all 5×5 layers, keeping the grouped pieces together. The back group and all corners stay fixed while the other three top groups cycle.

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 5×5, with yellow on top and blue at the front. Apply the setup below from left to right to create the example’s starting position. Keep this example separate from the scramble you’re solving throughout the course.

R2 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

Which turns keep the grouped pieces intact during the usual 3×3 solve?

Now use your own cube

Your turn

Follow the linked 3×3 stages in order using only outer turns. Check that centres and paired edges remain intact after each complete algorithm.

Open a 5×5 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

A paired edge comes apart during a 3×3 algorithm.

Check that each ordinary face turn moved only the outer layer. If you know which wide or inner turn you made by mistake, undo it. Otherwise, restore the reduction before continuing.

Before moving on

Check your result

5×5 lesson result: All six faces solved. Every face is one colour. Check the back and bottom as well as the faces you can see here.

Your cube at this stage

All six faces solved

Every face is one colour. Check the back and bottom as well as the faces you can see here.

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

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.
  2. Scan the QR code.
  3. Follow the instructions in Cube Solver.
Open scanner
Connect another phone
  1. Open your phone’s camera.
  2. Scan the QR code.
  3. Follow the instructions in Cube Solver.
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