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Mats Valk - 30.02 World Record 4x4x4 single - Dutch Nationals 2011

Spoiler: Notes

Scramble with White on U and Green on F
Move counts are estimated using [wiki]STM[/wiki] & [wiki]ETM[/wiki]
All notation is SiGN
Wide and slice move examples using SiGN notation: alg.garron.us
Rotations may not be actually what was performed
Thanks to Ron van Bruchem for the scramble

Spoiler: Video

Scramble
B r' B r' B' f2 u U' B2 L' U2 R B2 f' u2 U' r R' U2 B f2 R2 D2 u' U f D2 u2 U' R2 U2 r' u' f2 D2 U' r2 D2 R F'

Solution
y' // inspection
1st 2 centres and 3 cross dedge
U r' F U' l // blue
y' U l' U' l u2 l U2 l' // green
z U2 r2 U' // BR
x2' U l' U // BY
x' R U (R 3l) R U x r x' F' // BO
last 4 centres and finish cross
3r'2 U2' (l' L) U 3r' r2 // white
U r' U' r 3r'2 3r U 3r' U2' r U' // align bars / OG
r U' r' r U' r2' U2 r U2 r' // finish centres
r x' 3l' U R U' r' U' L' (z' y') // YG / BW / cross
finish edges
R U' R' u' U R U' R' // WO
y' U' R U' R' // WR
y' U' R U' R' u // YG
U F R' F' R u' // RG
R U' R' u // YO / WG
3x3x3
U2' R U' R' y U' R' U R // 1st pair
R U R' U' R U' R' U' L' U' L // 2nd pair
R U' R' U' R U R' U2 R U' R' // 3rd pair
y' U L' U2 L U L' U2 L // 4th pair
U' F R U R' U' F' // OLL
U' R' U2 R U2' R' F R U R' U' R' F' R2 U' // PLL
View at alg.garron.us

Scramble(White on U / Green on F)
B r' B r' B' f2 u U' B2 L' U2 R B2 f' u2 U' r R' U2 B f2 R2 D2 u' U f D2 u2 U' R2 U2 r' u' f2 D2 U' r2 D2 R F'

Solution
y' // inspection
1st 2 centres and 3 cross dedge
U r' F U' l // blue
y' U l' U' l u2 l U2 l' // green
z U2 r2 U' // BR
x2' U l' U // BY
x' R U (R 3l) R U x r x' F' // BO
last 4 centres and finish cross
3r'2 U2' (l' L) U 3r' r2 // white
U r' U' r 3r'2 3r U 3r' U2' r U' // align bars / OG
r U' r' r U' r2' U2 r U2 r' // finish centres
r x' 3l' U R U' r' U' L' (z' y') // YG / BW / cross
finish edges
R U' R' u' U R U' R' // WO
y' U' R U' R' // WR
y' U' R U' R' u // YG
U F R' F' R u' // RG
R U' R' u // YO / WG
3x3x3
U2' R U' R' y U' R' U R // 1st pair
R U R' U' R U' R' U' L' U' L // 2nd pair
R U' R' U' R U R' U2 R U' R' // 3rd pair
y' U L' U2 L U L' U2 L // 4th pair
U' F R U R' U' F' // OLL
U' R' U2 R U2' R' F R U R' U' R' F' R2 U' // PLL

For some reason I can't get this to work, I've tried like five times. I don't even get the blue center in the beginning and if I do the whole solve I end up with a totally scrambled cube?! Is it something wrong with me, or is the scramble/solve messed up. Would like to be able to get some tips from this solve.

For some reason I can't get this to work, I've tried like five times. I don't even get the blue center in the beginning and if I do the whole solve I end up with a totally scrambled cube?! Is it something wrong with me, or is the scramble/solve messed up. Would like to be able to get some tips from this solve.

Watching that solve I can't imagine there is much more to give. Practically perfect. Sub 30 will happen, but it's gonna be hella small increments from here on in. Amazing matz, absolutely amazing.

Watching that solve I can't imagine there is much more to give. Practically perfect. Sub 30 will happen, but it's gonna be hella small increments from here on in. Amazing matz, absolutely amazing.

Faz had a 31.59 Double Parity in World Championships. OLL Parity at 24.xx or so. Nakajima has had a 4 second PLL on a 32.xx as well due to a lockup as some examples. A few others have had similar stuff happen so I wouldn't expect for it to be too far away!