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Overview [Step 1] Step 2 Step 3

Step 1: Orient top and bottom corners (16 algos)


In this step, we will bring orange and red (this may be any couple of opposite colors blue/green or white/yellow) cubies to top or bottom layers.

Check the alternative method.

Try to find a face with 3 orange/red stickers and turn the cube to set it as bottom face with the not orange/red cubie on DBR or DBF and the last orange/red sticker on the right face. If don't find such a face, take one with only 2 orange/red stickers and bring a third orange/red sticker on this face.

On bottom layer, the fourth and last orange/red sticker must be on right face. Use the appropriate algorithm to fix last bottom layer sticker and the 4 top layer stickers.

In the following diagrams, an orange or red sticker will be represented with a black sticker.

Bottom layer: last orange/red sticker on right face
Top layer: 8 possible orange/red stickers patterns
LF'F [4/54]
zy'(UR'UR)x'		 LU'L [4/54] F'L'F [2/54]
zy'(R'U'R)x'		 F'L²F [4/54]
zy'(R'U²R)x'
L²DF [4/54] B'D²LD'L' [4/54]
x²(F'U²LU'L')		 F'LF'D²B' [4/54]
zy'(R'UR')x(U²L')x²		 L'ULF'L²F [1/54]
z(U'R')y'(UR'U²R)x'


Bottom layer: last orange/red sticker on right face
Top layer: 8 possible orange/red stickers patterns
LF'DF [4/54]
zy'U(R'x)U(x'R)x'		 B'UB [4/54]
y(R'UR)y'		 LDF [2/54] LD²R [4/54]
F²D'B [4/54]
x²y'(L²U'R)x²		 LU²F'DF [4/54]
z(UR²)x(U'LU)z'		 L'UB'D²F [4/54]
z(U'R)y'x(L'U²)Rx²		 F(L'U')(RU'²R) [1/54]


Alternative Method

Top layer: 8 possible orange/red stickers patterns.
Bottom layer: last orange/red sticker on right or bottom face
R'UR [4/54] R'U'R [4/54] R'U²R [2/54] R²U'R [4/54]
RU²R'U²R' [4/54] R²UR'U²R' [4/54] R'UR'U²R' [4/54] R²U²R'U²RU²R [1/54]


Top layer: 8 possible orange/red stickers patterns.
Bottom layer: last orange/red sticker on right or front face
RU'R' [4/54] RUR' [4/54] RU²R' [2/54] R²UR' [4/54]
U<->D [4/54] R²U'RU²R [4/54] RU'RU²R [4/54] R²U²RU²R'UR' [1/54]
Step average: 4.037 moves

Many thanks to Gustav Fredell (http://www.ornen.se/222G.html) for his algorithms.
Last modification: Thu March 22 2007 12:57:04 by Heymbeeck Joël [email: ]