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# Rubix cube

## by Pete Cheslock, Director of DevTools at Dyn, Inc. on Jan 23, 2013

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## Rubix cubePresentation Transcript

• How to SolveErno Rubix’s Cube
• 43 Quintillion Permutations43,252,003,274,489,856,000
• You’re Better Than This
• Don’t Be This Guy
• Small Letters Cube Notationlike:f Clockwise Turns are noted as aMeans move single upper case letterthe first 2sections R means turn the right sideclockwise 90˚ clockwise 90˚ 180˚ Turns are noted with a “2” before the sideCounter Clockwise Turns arenoted as a single upper case letter 2R means turn the right sidewith an apostrophe. clockwise 2 - 90˚ turnsR’ means turn the right sidecounter-clockwise 90˚
• CFOP 1. (Cross)Make a cross on one side by solving all edges of a given color. Alignthe edges with the second-layer centers. 2. F2L (First Two Layers)Fill in the four slots between the cross pieces, one slot at a time.Each slot is filled by inserting a corner and its corresponding edge. 3. OLL (Orientation of the Last Layer)Make the entire top side (the last layer) of the cube a solid color. 4. PLL (Permutation of the Last Layer)Finally, you finish the cube by permuting the top layer of the cube.
• CrossMake the White Cross Flip an Edge Piece (Edge Piece Facing You) F’ U L’ U’
• First Two Layers (F2L)Flip your cube so the White Crossis on the bottom (unless you solvedthe white cross on the bottom)Get a corner in top right withmatching sides.Where the white faces will changethe algorithm used.
• First Two Layers (F2L) Cont. • Adjust your Edge piece where the side matches the center. • Rotate the cube so the edge piece is on the right side. • If you want to move the edge piece forward/backwards changes the algorithm used.
• Orientate the Last Layer (OLL)Now to create a Yellow CrossYou’ll have 3 Scenarios Yellow Line Yellow “L” Cross Complete (Yay!) If no edge pieces are facing up do the 2nd (f R U R’ U’ f’) to give you a yellow line.
• Orientate the Last Layer (OLL) Cont.Make the entire top Yellow (facingup)3 Scenarios 1 Corner UP Make it bottom left 0 Corner UP Make a yellow corner face left (in bottom left) 2 Corners UP Make a yellow corner face forward (in bottom left) R U R’ U R U2 R
• Permutation of Last Layer (PLL) All yellow pieces should be facing up Your first 2 levels should still be complete.• “Look for the Headlights” and put them facing back• R F R B2 R F R B2 R2
• Permutation of Last Layer (PLL) Cont.Now to Complete our Cube!Look for a finished edge piece (put it in back)No finished edge piece? Same algorithmR U’ R U R U R U’ R U R2Not complete? Do it again!
• Complete!