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Rubik&#039;s Cube Algorithm. Rianna Richardson. Rubik&#039;s Cube Facts. There are 43,252,003,274,489,856,000 different configurations, and only one solution At the World&#039;s Rubik&#039;s Cube Championship people solve the cube blindfolded or with one hand - PowerPoint PPT Presentation

### Transcript of Rubik's Cube Algorithm

• Rubik's Cube AlgorithmRianna Richardson

• Rubik's Cube FactsThere are 43,252,003,274,489,856,000 different configurations, and only one solutionAt the World's Rubik's Cube Championship people solve the cube blindfolded or with one handThe youngest person to solve the cube was 3 year old from ChinaLets Give It A Go

• Basic Cube NotationR= Right Face L= Left FaceB= Back FaceD = Down FaceF= Front FaceU = Upper FaceA letter by itself = Turn face 90 clockwiseA letter + apostrophe = Turn face 90 counter-clock wiseA letter + 2 = Turn face 180

Hint: Before starting, play with the cube to learn how it rotates. The more comfortable you are the easier the following solution will be.

• The First Layer1. Form the White CrossGo edge by edgeCant mess up what youve already doneEdge flipped the wrong way:R U F U

If your cube looks like this, MOVE ON!

• The First Layer2. Solve the White CornersFind a corner piece on B, that belongs on UR D R D (up to five times, until solved) If corner is on U already, but in wrong positionHold cube sp the piece is on the upper front right positionR D R D Do this for every corner!

• Move On When.Next Step The Middle Layer

• The Middle LayerPut the white face on the BottomFind the Blue/ Red piece so the Blue lines up.

D L D' L' D' F' D F

Or, If you See thisD' F' D F D L D' L' then D L D' L' D' F' D F

• The Final Layer- Orient the edges Place white side on the Bottom4 Possible States State 1: Ready to move on! State 2: F U R U' R' F'

State 3: F R U R' U' F' State 4: Do algorithm for state 2 or 3, then you will be in state 2 or 3.**The face in the pictures is U**

• The Final Layer- Permute the corners two adjacent LL corners need to be swapped Place white side on bottom, and corners to be swapped @ front top right and back right topL U' R' U L' U' R U2two diagonal LL corners need to be swapped Do the above algorithm twice

• The Last Layer- Orienting the LL Corners There are 8 possible states. State 1 (where the corners are correct) SKIP THIS STEP!

State 2: Twist three corners anti-clockwise R' U' R U' R' U2 R U2 State 2: Twisting three corners clockwise R U R' U R U2 R' U2

• The Last Layer- Orienting the LL Corners

States 3-7: If you see this do one for the following:- Algorithm for State 1 twice- Algorithm for State 2 twice- Algorithm for State 1, then State 2**Hint: Figure out intuitively, so this becomes natural**

• The Last Layer-Permute the edges 5 possible statesState 1: Edges are correctYOU ARE DONE!!State 1:R2 U F B' R2 F' B U R2 State 2 :R2 U' F B' R2 F' B U' R2 States 3 and 4: Apply algorithm from State 1 or 2. Then your cube will look like State 1 or 2, apply the corresponding algorithm.

• Congratulations!

IT'S OVER!