Rubik's%20Cube%20Algorithm

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Rubik's Cube Algorithm

• Rianna Richardson

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Rubik's Cube Facts

• There are 43,252,003,274,489,856,000 different
  configurations, and only one solution
• At the World's Rubik's Cube Championship people
  solve the cube blindfolded or with one hand
• The youngest person to solve the cube was 3 year
  old from China
• Lets Give It A Go

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Basic Cube Notation

• R Right Face
• L Left Face
• B Back Face
• D Down Face
• F Front Face
• U Upper Face
• A letter by itself Turn face 90 clockwise
• A letter apostrophe Turn face 90
  counter-clock wise
• A 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.
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The First Layer

• 1. Form the White Cross
• Go edge by edge
• Cant mess up what youve already done
• Edge flipped the wrong way
• R U F U

If your cube looks like this, MOVE ON!
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The First Layer

• 2. Solve the White Corners
• Find a corner piece on B, that belongs on U
• R D R D (up to five times, until solved)
• If corner is on U already, but in wrong position
• Hold cube sp the piece is on the upper front
  right position
• R D R D
• Do this for every corner!

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Move On When.
Next Step The Middle Layer
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The Middle Layer

• Put the white face on the Bottom
• Find the Blue/ Red piece so the Blue lines up.
• D L D' L' D' F' D F

Or, If you See this
D' F' D F D L D' L' then D L D' L' D' F' D F
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The Final Layer- Orient the edges

• Place white side on the Bottom
• 4 Possible States

The face in the pictures is U
State 4 Do algorithm for state 2 or 3, then you
will be in state 2 or 3.
State 2 F U R U' R' F'
State 3 F R U R' U' F'
State 1 Ready to move on!
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The Final Layer- Permute the corners

• two adjacent LL corners need to be swapped
• Place white side on bottom, and corners to be
  swapped _at_ front top right and back right top
• L U' R' U L' U' R U2
• two diagonal LL corners need to be swapped
• Do the above algorithm twice

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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
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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
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The Last Layer-Permute the edges

• 5 possible states
• State 1 Edges are correct
• YOU ARE DONE!!

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.
State 1 R2 U F B' R2 F' B U R2
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Congratulations!

• IT'S OVER!