Finding God's Number

[@bord1741]

I find it extremely interesting that it's exactly 20.

[@heyasmusic7553]

Barn Bob it can be solved and with 19 or even 17 moves

[@royalty5701]

obviously, gods number doesnt mean 20 or more, its 20 or less, so even 1 move is possible

[@yorktickey258]

Only 10% need full 20 moves! this is also proved.

[@royalty5701]

@Death if its a 1 move scramble

[@royalty5701]

@Death of course a scrambler would never do that, but any possible scramble of a rubiks cube can be solved in 20 moves or less, meaning some positions solved with just 1 move, some with 20, a 2 move scramble can not be solved with 1 move,its just impossible, but 1 move scrambles can, but a for example 50 move scramble can be solved in 18 moves

[@whatyidoing7136]

*turning one back* Gods number is 1

[@rafia.3256]

I assure you that in the next couple months you are bound to blow up in the cubing community. Please, keep making videos.

[@touruuu2752]

Rafi A. Jakagzj

[@kirozfln9717]

Didnt happen

[@Betadesk]

Still didnt happen

[@nabranestwistypuzzler7019]

1:46 STM (Slice turn metric) makes H perms short

[@thetientran]

All fmc solvers will watch this

[@10kwithnovideochallengemem91]

2:47 to 3:18 Anyone try that and does it worked with that steps?

[@Jorscam]

What do you mean

[@ffggddss]

Thanks for the photo of MBT (Morwen B. Thistlethwaite, David Singmaster's officemate). I had read so much about him in Singmaster's "Notes on Rubik's Magic Cube," I always wondered what he looked like. So do you have any of MBTC?

[@Torok.Agoston]

Very nice videos! Subscribed!

[@alang9891]

The name of some of these people had me dying

[@Jaycubing10]

Great channel! Keep it up!

[@isaacvandoren4733]

really loving your channel!! keep up the good work!

[@bucky6384]

You did a good job man.keep up the good work.

[@switch1e]

Good video mate. This is comfy content. Subscribed.

[@TheMantisStrikesAgain]

This is neato! I've been recently thinking about another type of number on a Rubik's cube. And that is what's the maximum number of corner or edge pieces you can flip (i. e. break the cube open and flip them up) to make the cube unsolvable and still keep it unsolvable? If you flip one edge piece or one corner piece, it becomes unsolvable, but for how many times can you do that before you have made it solvable again?

[@Renozuken_]

wouldn't flipping all but one be the same as only flipping one?

[@isaacvandoren4733]

TheMantisStrikesAgain as far as flipping edges if an odd number of edges are flipped the cube is unsolvable, and if it's an even number it will still be solvable.

[@computercat8694]

Spoiler alert: 8/11. Turn every corner clockwise/flip all but one edge.

[@ffggddss]

There are 12 "states" of the cube that are disjoint (none can be achieved by standard moves from any other; some disassembly is required). These are produced by combinations of edge and corner relocations and reorientations. • Flip one edge or not (x2) • Twist one corner left, right, or not (x3) • Permute the edges *or* the corners oddly or not (x2) 2·3·2 = 12 [The parity of a permutation is odd or even, according to whether the number of single pair-swaps needed to produce it is odd or even. A given permutation, can be reached with different numbers of swaps, but that number is either always even or always odd, for that permutation.] This is because ordinary moves always perform permutations of the same parity on edges and corners (both even or both odd); edge-flips in-place can be accomplished only in pairs; and corner-twists in-place always sum to 0 mod 3 (a pair can be twisted in opposite directions, or 3 corners can all be twisted in the same direction, etc.)

[@RonaiHenrik]

Nice video once again, stumbled across it through reddit. Earned a subscriber, keep up the good work :)

[@CutsMetaphor]

hey....could u do a video showing how u solved the Rubik's cube at the beginning of thiss particular video?

[@goldenwarrior1186]

haron taiko He probably just used a computer to find the (close to) optimal solution to the scramble.

[@2a3s4dplays9]

What about slice turn metric?

[@Oneiric_Benevolence]

You make very informative and quality videos, and also not that long either, you have won a sub.

[@Competitive_Antagonist]

Super cube? I've been wondering if 3x3 centres can change their orientation. Guess now I know they can.

[@JuliaC-sp5qk]

The fact it was brute forced is kind of sad - it doesn't give any insight into why it is 20 not 21

[@Frozengrapecream]

great video as always, keep it up!

[@nabranestwistypuzzler7019]

What about STM?

[@thinkable3D]

Awesome video. Very informative 👍

[@zadekharbat]

this is amazing

[@josiahbates8962]

y do you have a rubiks brand speed cube?

[@jigglycuber2009]

I loved the pic at 1:03 of destroyed Dubai

[@lihuacen9673]

Good luck finding the fewest numbers of moves on the 10x10

[@Lyrics-nx9km]

0:15 the highest number of moves, not the smallest

[@firstnamesecondname3647]

Are x, x', y, y', z and z' one or two moves?

[@TheCubingHistorian]

They're no moves at all.

[@firstnamesecondname3647]

The Cubing Historian Sorry, i wanted to say M, E and S

[@TheCubingHistorian]

+first name second name Ah I see. Those are generally considered two moves, unless you're working in slice turn metric (STM) - fairly common in Roux solves.

[@misterchess3254]

FMC WR

[@l0r3nz1oavr3]

Whats difference lower bound upper bound

[@rosebuster]

What's confusing about it? When you're looking for a number that's an answer to your problem and you still don't know what it is exactly, but you've proven it must equal no less than A, but no more than B, then A is your lower bound and B is your upper bound.

[@thegamestartyp]

Herbert kociemba was my physics teacher

[@xxwaffle2184]

Category: *Autos & Vehicles*

[@canestertable8938]

It's 777 Edit:I think

[@pigcake101]

I like how the dislikes are at 11 (gods number of pyraminx and 2x2)

[@camdenj4413]

at 0:29 the moves said 19 but god's number is 20. What?

[@monkturt6404]

Camden Jedda lucky scramble

[@StarryNightGazing]

20 is the maximum number of moves you'll ever need, not the minimum. You can easily have position solvable by just one move for example

[@mushroomcube623]

In fact, a random scramble that takes 20 moves to solve is less likely than one that takes 8 moves to solve. 18 and 17 are by far the most common.

[@maevebaksa]

20 or less

[@Africa41]

Got cut short by Dick Winter

[@mdmosiarrahaman6323]

God knows everything,so name is God's number

[@FredBobBurps]

The first ten seconds are false. what about b moves. and reaction time.

[@tze_ghostrider]

So how can I solve it?

[@twigtoyoulater]

I got damn confused

[@thefuturegamer5159]

Imagine there is a God’s number method

[@gamerrykegaming737]

13 in half turn metric if quarter turn metric used?

[@survivaltactics6648]

So we have Dick Winter and John Deathridge or deathrich mmmmm

[@QueLastima]

Just passing by. FYI, it's not "smallest number of moves" it's better said, "fewest number of moves."

[@baracnallos33-videosvariad68]

i know the guy in the first photo

[@survivaltactics6648]

I say before you that 18 is the devil's number.

[@borislavkosturski5211]

umm... isn t god s number at least 26 then?

[@goldenwarrior1186]

Borislav Kosturski Half turn metric is the more common way to track the number of turns someone's done.

[@kagancakc1317]

Plase turkish translate

[@anon_ymous2k5]

*peels off stickers* SOLVED IT

[@dianneborgeson6471]

333 likes

[@rockbore]

That was fine, but someone has posted a vid showing the God's number algorythm. I've reported him for misleading content. Friend of yours?

[@TheCubingHistorian]

im so confused

[@rockbore]

Didn't you post the vid with the God's number algorithm?

[@AntiAntiVaxxer2008]

Superflip is 21 moves

[@TheCubingHistorian]

U R2 F B R B2 R U2 L B2 R U' D' R2 F R' L B2 U2 F2 Looks like 20 to me.

[@Catalyst313]

Man, even a computer can't calculate it quickly? Well damn, my computer must be really fast since it can calculate it on rubiks-cube-solver.com/ without burning off.

[@TheCubingHistorian]

+Catalyst - Agario & More The question isn't proving that a single position needs no more than 20 moves, it's proving that there are no positions that require more than 20 moves. Since there are over 43 quintillion possible positions, this is kinda hard.

[@Catalyst313]

Not hard enough for my computer tho ;) xDDD

[@d3ad.4gain]

Catalyst - Agario & More este wey

[@rosebuster]

I refuse to believe your single computer is more powerful than a huge network of Google servers calculating it for several weeks. :P

[@eskertkai9837]

It’s 20 because it’s the least amount of turns it takes to solve a 3x3

[@raulthegibbon4869]

Lol im the 666 liker

[@CrabulousYT]

But the world record lowest is 16 moves.

[@ibbyanimations7478]

God number is 29

[@karentodd2079]

Its actually called Devils number you use god in gods algorithm

[@mushroomcube623]

wrong you have it backwards

[@marambabilli5075]

WHY THERE IS NO VIDEO EXPLAINING HOW TO DO IT 😭😭😡😑