30.28 WR 4x4 solve by Feliks Zemdegs at Australian Nationals 2011

Scramble

R2 f2 u U' L R' B' R' u2 U' L B r' U2 B' R' U2 f2 u2 U2 B f2 r' U' r2 D' L2 u R2 F' r2 R' u' f2 F' D r R2 D U2

Solution

x y2 // inspection
centres (31htm)
U r' F U2' r' // yellow
x' U2 l2' U' r U2 r // white
(y x2) D' U l' U r' // green
x' U' r' F' l r U r' U' r2 U2' r2' // orange
U' r U r' // red/blue
edges (60htm) BR free
u (y z2) U2' R U' R' y' U' (y z2) U' F R' F' R y U R U' R' u' (y z2) // 1st 3 YR / BO / WB / WO
U' R U' R' y R U' R' u' U R U' R' u // WR
y' u U' R U' R' u' (y z2) // YO / WG
U F R' F' R d U2 R R' F R' F' R u' // GO / GY
U (y' x') R' u' R U R' F R' F' R u // GR / BY
3x3x3 (67htm)
3r' x' D' F' U R2 // green cross
U L' U' L y' U' L U L' // 1st pair
R U' R' U R U' R' // 2nd pair
U L' U' L y' L U2 L' // 3rd pair
U R U' R' U' R U' R' U R U' R' // 4th pair
U R U R' U' R U' R' F' U' F R U R' // OLL
U2' R U R' y' R2 3u' R U' R' U R' D B2' U' // Gd perm

Tags

wr
Added: Sep 10, 2013
Reconstructed by: Brest