Random Cubing Discussion

[ben1996123]

cool, wolfram alpha is learning about cubing.

 

[JohanTheAwsome1]

Is yau method for bigger cubes such as 5x5 possible?

Ofc it is possible but not in any way as efficient as on a 4x4, for bigger cubes such as 5x5> people often use freeslice reduction!

 

[qqwref]

Good point aronub.

Any other non-EPLL exceptions?

Nope, you can recognize all (ELL-EPLL) cases by just looking at the top face and knowing the AUF position.

 

[oll+phase+sync]

Good point aronub.

Any other non-EPLL exceptions?

Looking at two sides of the U-face, count the different visible colors (2 color of then edges plus the colors of the corners) (U-color is not counted)

a) 2 colors => solved! , pure flip!, Z-variation
b) 4 colors => H-variation! , Z-Variation
c) 3 colors one edge in place => a edge 3-cycle the one edge you see is enough to identify the cycle.
c) 3 colors no edge in place => a edge 3-cycle again, the missing color is inplace

This is not meant as ELL recognition system, but just a proof that looking at two sides is enough to identify the permutation case, combining this with the U-Orientation gives the exact ELL

qqref mentions: seeing 1 side face and U-face is also enought (ecept EPLL cases ),
wich can be proofed, by using the very same 4 cases a) to d)

 

[5BLD]

Someone told me I should make the transition between FB and SB smoother. Maybe if I took that literally...?
Inspired by what waffle claimed to be zeroing (but didn't actually do it)

[09:16] <+taeng> 3x3x3 scramble #304: R2 D' F2 R2 U F2 D' U2 B2 U' L' R2 D2 L' F L' U' B' D F'
[09:25] <Rouxuor> First Square[kinda]: xy' RrU
[09:25] <Rouxuor> Funny stuff: B2uB'RU2B'R' //an insertion of B2 , then finishing first block so that the first SB square ends up solved
[09:25] <Rouxuor> Last pair: U'Mr'U'r
CMLL: U2R'UR2Dr'U'rD'R2U'r
EO: UM'U2M'U'M
ULUR: U2M2U'
EP: M'U2M
[09:26] <Rouxuor> i wonder if i can do this in a speedsolve
alg garron
39 STM

[09:32] <+taeng> 3x3x3 scramble #306: L2 B2 D' U2 L2 B2 L2 B2 D' R2 D' L' B U L2 B2 F' U L' F2 L'
[09:47] <f`vebld> o
[09:47] <f`vebld> i forgot i havvent posted the thingy if for some strange reason someone is interested
[09:47] <f`vebld> x2y' D'L'D
[09:47] <f`vebld> B'D'R'E'FR'UM -- used solver for this one
[09:47] <f`vebld> xy'RUR'URUR'
U2R'UrU2R2'FRF'r
URUR'U'M'URU'r'
U2M2U'MU2M
U2M2U
alg garron
47 STM (regular roux avg/just a tiny bit below)


[10:08] <+taeng> 3x3x3 scramble #307: B2 D2 L' U2 L' U2 B2 L2 B2 R F D' L U F2 R2 B2 F D B
zrU'R'u

then

(R'r')UR2UM'B'
R'U'RUR'U'RUr' (found quickly- I actually did this in a speedsolve and planned all of it in inspection! except last pair ofc.)
UR'DRU'RUR'UR'D'R
UM'U'MU'M'U2MUM'U2M2U2M

MDB2D'M'Br' //found after ages and leads to a better solution
UrU'r'
U'R'U'RU'R'URFR'F'Ur
UM etc...d.asac.

 

[PandaCuber]

I cant seem to find anything good within 15 seconds. How do you do itt?

 

[5BLD]

Use more than 15s XD
But I do intend to plan FB+first square in inspection eventually. Either way today this has really confused me- finding good solutions was brainracking, but hopefully I'll get used to it. It's like learning to be efficient again, only, there's an easy way out that tempts me when I try. (for some people this easy way may be like F2L pairs with roux blocks, another example of what I'm describing)

 

[Kirjava]

But I do intend to plan FB+first square in inspection eventually

you're weird

 

[StachuK1992]

Thought I'd try out a AMA on Reddit. Maybe we can get someone better/more famous and grab more attention?

 

[applemobile]

Thought I'd try out a AMA on Reddit. Maybe we can get someone better/more famous and grab more attention?

I would suggest you just keep away from that cesspool all all together

 

[5BLD]

If we did a AMA with speedsolving community not reddit it would be far more/actually interesting

 

[cmhardw]

Random post that does not deserve its own thread:

Over the past week I've taught one of my coworker's kids how to solve the cube. Today he solved a fully scrambled cube without any help for the very first time. He had been coming with his dad to my school during his dad's office hours, and I'm friends with his dad already. I love that feeling of teaching someone how to solve, and then seeing the total excitement in their faces when they get their very first solve without help! Fun stuff!

 

[5BLD]

Me too! I've also recently taught someone to cube... On orchestra tour, I taught him Roux in about 5 hours of a long coach journey to here... Was very exciting to see his first solve, and it made me smile just the same to see him enjoy solving it, well repeatedly and finding so many new things...

Also, what joy when you see them beat their PB tho its only like 1:30, yet they just started

 

[PandaCuber]

Me too! I've also recently taught someone to cube... On orchestra tour, I taught him Roux in about 5 hours of a long coach journey to here... Was very exciting to see his first solve, and it made me smile just the same to see him enjoy solving it, well repeatedly and finding so many new things...

Also, what joy when you see them beat their PB tho its only like 1:30, yet they just started

lol nice. how many people have you taught?

 

[5BLD]

4 or 5

 

[cmhardw]

Me too! I've also recently taught someone to cube... On orchestra tour, I taught him Roux in about 5 hours of a long coach journey to here... Was very exciting to see his first solve, and it made me smile just the same to see him enjoy solving it, well repeatedly and finding so many new things...

Very cool, and yes I agree that this feeling is just as exciting as getting my own very first solve without help! I always have a huge smile every time someone I taught solves their very first cube!

Also, what joy when you see them beat their PB tho its only like 1:30, yet they just started

I have only experienced this once or twice. I have two friends who I've taught where they both stuck with it for a bit and tried to get faster. Almost everyone I've taught is happy to learn to solve it, and never pursues faster times. This is totally fine, I'm glad they are able to learn it and feel good about themselves to know how to solve it period! That's very cool that you've taught people who are interested to stick with cubing, and try to get faster!

 

[blakedacuber]

@5BLD did you teach them roux? or was it just a beginner method?

also because someone might care,
I stumbled upon mr.Jskyler youtube today, so i asked if e was still cubing, his reply" Yes i do actually. Also I am working on memorizing SkV. I will be making a video on SkV soon as well as a video on some transitional tips and a few walkthrough solves. "

 

[5BLD]

@5BLD did you teach them roux? or was it just a beginner method?

Roux of course, I did say
He ended up doing something like MBR after a while of difficult blockbuilding the way I do it
I did save him before it was too late

He still solves corners then waterman style inserts for SB
Pairs, another time, let's see him sub-minute first

 

[blakedacuber]

Random fact, every official average I've done with an puzzle has been a better average than the previous done with that puzzle.

 

[TheMachanga]

I don't really know where else to say this, but do people who are not color neutral do FMC on white cross always? I think the former world record was on white cross, and I noticed another cross was way easier after looking at the reconstruction. However, white cross gave him an LL skip, but still.