How to solve the
Rubik's Cube
Content
 History
 5 Facts
 Basic Knowledge
 Cross
 First Layer
 Second Layer
 Last Layer Cross
 Last Layer Edges
 Last Layer Corners
History
1976  Invention by
Erno Rubik
1980  Great Popularity
Revival through the internet
5 facts
1. Possible Positions
43'252'003'274'489'856'000
( ≈43 Quintillion)
2. Optimal Solution
20 Moves
( 35 years of calculation for one processor)
3. World Record
5.25s  Collin Burns '15
What is the world record for the fastest solve?
4. Different Puzzles
Pyraminx
2x2
4x4
5x5
6x6
7x7
Megaminx
Skewb
Square1
Rubiks Clock
5. Different Categories
OneHanded
With Feet
Blindfolded
MultiBlindfolded
Basic knowledge
Components
 Centers
 Edges
 Corners
Methods
 We learn the Beginner Method
 An advancement of the Beginner Method is the FridrichMethod
 We learn 6 Algorithms in the Beginner Method
 In the FridrichMethod you learn up to 100 Algorithms
Notation
What is the notation?
 Description of a rotation of one side
 Is required to perform algorithms
 Also required to scramble the cube
 The whole solution is based on the notation
basic rules of the Notation
Normal Move
' Suffix
2 Suffix
StandardNotation
R
L
U
D
F
B
StandardNotation
R'
L'
U'
D'
F'
B'
StandardNotation
x
x'
y
y'
z
z'
Exercises
 R U R' U'
 D L' U F2 B2
 B2 F2 U' L D'
 L2 F2 U' F2 D B2 F2 D2 L
Cross
What is the Cross?
 First step
 The first time, we make it on white
 The CrossEdges need to be correct on both sides
Procedure
 Search the matching edge
 Turn the edge below the target
 Turn up the Edge

If the Edge is twisted incorrectly> F U' R U'
Example
Scramble: L2 F2 U' F2 D B2 F2 D2 L
The whiteorange Edge is already in the top layer > U
In the bottom layer, there is the WhiteGreen Edge.
This Edge must go below the Green Center > D2
And has to be turned to the top layer> F2
In the bottom layer there is the WhiteRed Edge.
This Edge must go below the Red Center > D'
And has to be turned to the top layer > F2
The last Edge (WhiteBlue) is placed on the red side
This Edge must turned down to the bottom layer > F
Afterwards the Edge has to go below the blue center> D
Because we moved the WhiteRed Edge, it has to go back up again > F'
And now, the WhiteBlue Edge can be turned up > F2
Exercises
 Cross on the YellowSide
 Cross on the RedSide
 etc.
First Layer
What is the First LayeR?
 Whole site correct
 For this step, the Corners need to be inserted
Procedure
 Search the correct Corner
 Turn Edge below its target
 Perform Algorithm > R' D' R D

As long as the Corner is correctly inserted
Exception
Is a corner already in the top layer, you have to perform the Algorithm ( R' D' R D ) once.
Exercises
 Solve five times one side
 The colour is arbitrary
Second Layer
What is the Second Layer?
 Two Layers need to be arranged correctly
 For this step, we need to insert 4 Edges
 Two algorithms are required
 The Cube has to be turned upsidedown
Procedure
 Search an edge in the Top Layer
 Turn the Edge to the correct position
 Determine Case
 Perform the according algorithm
Search an edge in the toplayer
We search a nonyellow side in the toplayer
Turn the Edge to the correct Position
 The bottom side of the edges has to match the colour of a center
 Only UMoves are required
U'
Determine Case and perform algorithm
To the Left
To the Right
U R U' R' U' F' U F
U' L' U L U F U' F'
Learn Algorithms
 Search patterns
 Repeat
(U' L' U L) (U F U' F')
(U R U' R') (U' F' U F)
Exercises
 Memorize the algorithms
 Solve the Second Layer till you feel safe about it
Last Layer Cross
Overview
Only Algorithm for this step
(F R U) (R' U' F')
 Cross on the last layer
 We have to regard the edges only
 There is just one algorithm for this step
Determine Case and perform algorithm
Dot
LShape
Line
Alg > LShape
2 times Alg
Alg
(F R U) (R' U' F')
Last Layer edges
Overview
 Orienting the Edges
 We have to regard the edges only
 There is just one algorithm for this step
Only Algorithm for this step
(R U R') U (R U2 R') U
Determine Case and perform algorithm
2 adjacent correct pieces
No adjacent correct pieces
Alg > 2 adjacent correct pieces
Place the two correct pieces at the back left + Alg
Hint: Sometimes you have to turn the ULayer a couple of times (maximum 3 times) to see if there are 2 adjacent correct pieces.
lAST LAYER CORNERs
Overview
 After this last step, ther corners will be permutet and orientet correctly.
 We have to regard the cornes only
 2 Algs are required to perform this step
Required Algorithms
(U R U' L') (U R' U' L)
Corner Permutation Algorithm
Corner Orientation Algorithm
R' D' R D
CornerPermutation
One correct corner
No correct corner
You have to look around the whole cube to see if there is a correctly placed corner.
Correct corner on the frontright
U R U' L' U R' U' L
U R U' L' U R' U' L
< One correct corner
CornerOrientation
 Get an incorrectly twisted corner to the frontright
 R' D' R D till the corner is twisted correctly
 Repeat till the cube is solved
You Solved the Cube!
Congratulations!
Impressum
Author: Tobias D. Peter
Licence: CC BY SA 
How to solve the Rubiks Cube
By Tobias Peter
How to solve the Rubiks Cube
This Presentation is an alternative to the videoonly or textonly Rubiks Cube tutorials. It may be used as an assistance for a course or for selfstudy.
 47,917