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If my memory serves me correctly, pretty sure I predicted many, many years ago that 6x6 times would get down to around 1:50, and I was largely rejected as not having a clue.

If my memory serves me correctly, pretty sure I predicted many, many years ago that 6x6 times would get down to around 1:50, and I was largely rejected as not having a clue.

Kevin Hays - 1:49.46 6x6x6 WR single - Couve Cubing 2012

Spoiler: Notes

Scramble with White on U and Green on F
Hays swaps Black for White
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
Moves and rotations in ( ) are executed simultaneously (usually)
Slice moves added and cancellations removed (see "View as executed" for full solve)
Thank you to Zheng Li for providing the scramble!
Thumbs down for the two errors made during scrambling
Thumbs up for reconstructing without the scramble and then finding the errors! :tu

Spoiler: Video

[youtubehd]Lr0kUD_aUSc[/youtubehd]

Spoiler: Scramble

3r 2d2 B 2l' R2 3u2 2b' 2f 2u2 L 2l 2f 2d2
R 2f D' R 3f' 2l2 B' 3f 2f F' 3u' 2u2 3f D B'
F' 2r2 2f2 3u2 F2 L' U2 L 2l U 2b' 3r' R2 3u'
L2 3f2 U' 3r2 2r' 3u' 2b2 F 2u' U 3r' U2 3r2
2b2 L' F2 D2 2u2 B 2f 2l2 3u 2u2 L' 2l2 R2
2b' 3f 2u R2 2u' 3f2 2l2 2u2 2b' 2u 3r2 3f'

Spoiler: Solve

y' // inspection // centres // blue
4r U2 4r' x' U' 2r' U 2r U 4R2 x U x2 U' 2r U 2r' U 3l // 2x3
x 4l' U2 2r U 4l2 (x2' y') 2r' // 3 lines
2r U' 2r' U' x' 3l' U 3l F' U' 4l' U' 4l x2' F F' U 3R2 // finish blue // green
(x' z') 3l' U' 3l U' 4R' z U 3l' U2 3l // 1st line
z' U 3R' x U2 3R U2 y' 3R U2 3R' // 2nd line
(y x') U' 4r' U' 4R' U 2r' z 2r U2 2r' // 3rd line
z x 2r U' 2r' U' // 1st white line
x' 2r U2' (2l' 4r') U 4r U' 2l // 2nd white line
U2 3r' U 3r U' x2' U (4r2' 2r2) (y' x') 2r U2 2r' // finish green // red / white (black)
z x U' 2r U 3r' U2' 2l2 // 3rd white line
U x' U2 3R' x U // 2 red lines
x' 3R 2l U' 4r' x U' x' 3R2 U2 3R2 // 3 red lines
x U 2r' U' 2r U' x' U 4R' x U 4R 2r2 U2' 2r2' // finish white
4r' U 4R U' 3r U' 2r' U2 2r U' 2r U2 2r' // finish red // yellow / orange
U 2r' U 2r U x' U2 3R U2 3R' // inner lines
2r U 2r' U' 2r U 2r' U 4l' U2 4l // 3rd yellow line
U (4r 2r') U2 (4r' 2r) U 2r U2 z' // finish centres // edges
R U' R' U' z2 F R' F' R 2d' // 3/4 WR
U' R U' R' z' 4R' z // WR
L' U L U2 (x2 y') U' F R' F' R 2u // 3/4 WO
(x' y') z U F R' F' R 2u // WO
y' R U' R' 2u' y' U R U' R' (z x') 3r' // 3/4 YO
(x z) U2 F R' F' R 2u // YO
z2' U' R U' R' (z x') z 2u' // 2/4 YB
y' R U R' F R' F' R 2u' (x' y) 4R2 z' // YB
U2 R U' R' z2 3u y' U R U' R' 3d' // GR
U3 L' U L 3u (x' y') 3R2 z' // 3/4 BG
R U R' F R' F' R z' 4R2 z // BG
R U' R' (x' y) (2r 4l) (x' z) R U' R' z' 4R' z // WB
U L' U L 2U R U' R' z' 3R' (x z) // GO
U' R U' R' (z' x') 3R2 3r' z R U R' F R' F' R 2u2 // fix centres
(z' x') 3R' (x z) R U R' F R' F' R (x' y) 3R // RB
x' U2 4r z R U R' F R' F' R 2u' // OB
(x' y) x' 3L' z R U R' F R' F' R 3U // 3/4 YR
2u' R U R' F R' F' R 2u // YR / YG // 3x3x3
U2 (x' y') U R U' y' U' R' U y' U R U' (x2' y) // white cross
U3' R U' R' y R' U' R // GO pair
U y' U R' U' R2 U R' // RB pair
y R U' R' y2' R U R' U' y' R' U R // OB pair
y' R U R' // GR pair
U 5l U2 L' U' L U' x R' // OLL
R U R' U' R' F R2 U' R' U' R U R' F' U' // PLL View at alg.garron.us

Spoiler: View as Executed

Spoiler: Scramble

3r 2d2 B 2l' R2 3u2 2b' 2f 2u2 L 2l 2f 2d2
R 2f D' R 3f' 2l2 B' 3f 2f F' 3u' 2u2 3f D B'
F' 2r2 2f2 3u2 F2 L' U2 L 2l U 2b' 3r' R2 3u'
L2 3f2 U' 3r2 2r' 3u' 2b2 F 2u' U 3r' U2 3r2
2b2 L' F2 D2 2u2 B 2f 2l2 3u 2u2 L' 2l2 R2
2b' 3f 2u R2 2u' 3f2 2l2 2u2 2b' 2u 3r2 3f'

y' // inspection // centres // blue
4r U2 4r' x' U' 2r' U 2r U 4r2' 3r2 x U x x' x2 U' 2r U 2r' U 3l // 2x3
x2' x' 4l' U2 2r U 4l2 (x' z) x' 2r' // 3 lines
x' x 2r U' 2r' U' x' 3l' U 3l F' U' 4l' U' 4l x' x' F F' U 3r2' 2r2 // finish blue // green
(x' z') 3l' U' 3l U' 4r' 3r z U 3l' U2 3l // 1st line
z' U 3r' 2r x U2 3r 2r' U2 y' 3r 2r' U2 3r' 2r // 2nd line
(y x') U' 4r' 2r 2r' U' 4r' 3r U 2r' z 2r U2 2r' // 3rd line
z x 2r U' 2r' U' // 1st white line
x' 2r2 2r' U' U' (2l' 4r') U 4r U' 2l // 2nd white line
U2 3r' U 3r x' F' x' U 4r2' 2r2 (y' x') U U' 2r U2 2r' // finish green // red / white (black)
z x U' 2r U' U2 3r' U' U' 2l2 // 3rd white line
U x' U2 3r' 2r x U // 2 red lines
x' 3r 2r' 2l U' 4r' x U' x' 3r2' 2r2 U2 3r2' 2r2 // 3 red lines
x U 2r' U' 2r U' x' U 4r' 3r x U 4r 3r' 2r2 U' U' 2r2' // finish white
4r' U 4r 3r' U' 3r U' 2r' U U 2r U' 2r U2 2r' // finish red // yellow / orange
2r' 2r U 2r' U 2r U x' U' U U2 3r 2r' U2 3r' 2r // inner lines
2r U 2r' U' 2r U 2r' U 4l' U U 4l // 3rd yellow line
U 4r 2r' U2 4r' 2r U 2r U2 z' // finish centres // edges
U U' R U' R' U' y (x' y') z U U U' U' F R' F' R 2d' // 3/4 WR
U' U' U R U' R' z' 4r' 3r z // WR
L' U L U U (x' y') z U U U' U U U U' F R' F' R 2u // 3/4 WO
(x' y') z U U U' F R' F' R 2u // WO
y' R U' R' 2u' (x' y) x' z y U U U U' U' R U' R' (z x') 3r' // 3/4 YO
(x z) U U U U' F R' F' R 2u // YO
z2' U' R U' R' (z x') z 2u' // 2/4 YB
y' R U R' F R' F' R 2u' (x' y) 4r2' 3r2 z' // YB
U U R U' R' (z' x') (x z') 3u y' U R U' R' 3d' // GR
U U U L' U L 3u (x' y') 3r2' 2r2 z' // 3/4 BG
R U R' F R' F' R z' 4r2' 3r2 z // BG
R U' R' (x' y) (2r 4l) (x' z) U U' R U' R' z' 4r' 3r z // WB
U L' U L 2u U' R U' R' z' 3r' 2r (x z) // GO
U' R U' R' (z' x') 2r2 3r2' 3r' z R U R' F R' F' R 2u2 // fix centres
(z' x') 3r' 2r (x z) R U R' F R' F' R (x' y) 2r 2r' 3r 2r' // RB
x' U2 4r z R U R' F R' F' R 2u' // OB
(x' y) x' 2l 3l' z R U R' F R' F' R 3u 2u' // 3/4 YR
2U' U' R U R' F R' F' R 2u // YR / YG // 3x3x3
U2 (x' y') U R U' y' U' R' U y' U R U' (x2' y) // white cross
U' U' U' R U' R' y R' U' R // GO pair
U y' U R' U' R2 U R' // RB pair
y R U' R' y2' U U' R U R' U' y' R' U R // OB pair
y' R U R' // GR pair
U 5l U U L' U' L U' x R' // OLL
U' U R U R' U' R' F R2 U' R' U' R U R' F' U' // PLL View at alg.garron.us

Guys, go and make thread in "Constructive Speedcubing Discussion". This thread is to discuss Kevin's(and Brest's too) awesomeness! Finally, his WR doesn't depend on how cube was scrambled.
P.S. Too bad I don't have a 6x6 to follow his solve

Thanks everyone! And thanks to Brest for reconstructing! Super cool to be able to see the solve played back. Favorite part was the Green / Black center combo and then the Black / Red center combo. I'll probably get the mean of 3 up sometime soon along with the 1:05.01 5x5 average as well.

Seems he's working on multiple centers at once, building tetris pieces and fitting them all together. This is crazy! Or maybe I'm just totally n00bish. That View as Executed is wicked!