Random Blindfold Cubing Discussion

[Evan Liu]

100 people have now officially gotten a 4BLD success.

(Matthew Sheerin was the latest, at Guildford Summer Open)

 

[JonnyWhoopes]

What are some fast Per Special algs? I don't particularly enjoy the optimals.

 

[RyanReese09]

What are some fast Per Special algs? I don't particularly enjoy the optimals.

Bad.

 

[aronpm]

R' U R2 U' R' D2 R U R' D2 R' U' R

(two move setup to A9)

 

[riffz]

A lot of moves but for the per specials with 2 pieces on U I just do D' [U2, R' F' R2 F R] D for example.

 

[Cubenovice]

R' U R2 U' R' D2 R U R' D2 R' U' R

using the above on a solved cube to set up a Per Special

solve via D' (B U B' U')3 D2 (B U B' U')3 D2 D

set up moves in bold
offcourse you recognise the 6 sexy moves in there ;-)

 

[qqwref]

Eww, that's a LOT of moves.

At the very least (if you don't know optimal/speed-optimal commutators) you should be using something like D' (R2 U' R2 U R2) D2 (R2 U' R2 U R2) D'...

 

[Cubenovice]

Eww, that's a LOT of moves.

At the very least (if you don't know optimal/speed-optimal commutators) you should be using something like D' (R2 U' R2 U R2) D2 (R2 U' R2 U R2) D'...

I know... And I probably should...
But this was the first thing I came up with when I learned about commutators so it is pretty special to me (pun intended)

 

[Mike Hughey]

Eww, that's a LOT of moves.

At the very least (if you don't know optimal/speed-optimal commutators) you should be using something like D' (R2 U' R2 U R2) D2 (R2 U' R2 U R2) D'...

I'm sure Chris would be disappointed in me, but this is the kind of thing I use for Per specials (except I do it upside down, with Us instead of Ds and Ds instead of Us). I got used to it years ago when I learned from Macky's old BLD document, and I just couldn't break the habit. I'm sure it would take at least 10,000 practice repetitions of a Per special for me to even start to get close to my speed with this alg, so after trying Per specials for a few months, I gave up and went back to this.

 

[Rpotts]

that's what I do too. But i didn't know they were per specials, it's just a random comm i figured out when i was first teaching myself comms. 3x3x4 ftw

 

[cmhardw]

For Per Specials I use a different alg than the one Daniel uses (the one on the website, I believe).

Actually I do something very similar to this:

D' (R2 U' R2 U R2) D2 (R2 U' R2 U R2) D'

Only I shorten it a bit and execute as:
(D' R2 D R2 D) B2 (D' R2 D' R2 D) B2

Daniel does something awesome for this case. He would do:
R2 U l2 U' l2 U' R2 U l2 U l2 U'

Here is a post I made about the algs Daniel uses.

I agree that Daniel's algs are faster than mine, but when using his version during a real BLD solve I have a hard time mentally visualizing what's happening. The alg I typed above is the one I would use in that case, and is just an ABA'B' commutator with a 5 turn A, very similar to the alg posted by Michael.

 

[Stefan]

I like [U' L2 U L' U' L U, R2] and [L U' L' U L' U' L U, R2] (without the ending R2, they're my R2-algs for targets DBL and UFL).

 

[lucarubik]

I use same as mike and qqwref

 

[riffz]

I like [U' L2 U L' U' L U, R2] and [L U' L' U L' U' L U, R2] (without the ending R2, they're my R2-algs for targets DBL and UFL).

Ooh I'm liking your UFL one reflected for ULB buffer: R' U R U' R U R' U' L2 U R U' R' U R' U' R L2

 

[pi.cubed]

The original post was different to this. It had different letter pairs left. I have edited it with what I have left currently.

I don't really think this is the right place to post this, but I don't know where else I could put it & it doesn't need a thread.
I've been working on my letter pair image list for about 6 months now. I have looked at these two lists in Ryan's thread, Eric's list, Chris Hardwick's list and the wiki's list. I have also spent a lot of time thinking myself and asking family. Not including Xs (which I haven't done yet), I now have 18 left. I really need some other help. Does anyone have any ideas for these:?

Spoiler

DQ
ED
EH
FU
GQ
NQ
NX
QA
QM
QO
QR
QT
QW
QX
UJ
UT
VH
VJ

If there is another list somewhere that you can link me to, that would be great.
Oh yeah, I'm Australian so I don't know a lot of American stuff.
I will not use anything profane.
Thanks.

 

[Zane_C]

Does anyone have any ideas for these:?

I've left out a lot because there are some letters which I don't use or images that don't apply to you.

DF = dolphin
FU = f**k
IE = internet
KV = kill vehicle (poachers, death race etc)
KX = kick (kicks is said as kix)
MQ = molotov cocktail
OD = overdose
QJ = QJ 4x4
QL = Quail
SJ = social justice (judge with his gavel and wig)
TF = transformer
TJ = trojan horse
TS = table salt
UK = UK flag
UL = unlucky (usually the image associated with this is squashed by a random falling object)
UR = urine
US = US flag or zeus
VA = vaporise
VC = vacuum
VH = Van Helsing
VI = vice
VM = venom
VW = volks wagon
WP = weapon
WT = water
WV = wave

 

[lucarubik]

does anyone know how many edge cases are? exluding simetrical and inverse?
btw I noticed that 75% of turbo, eveyithing but uperms are BH comms!!!

 

[cmhardw]

I will not use anything profane.

Why not? World class memorization experts recommend you do so; profane things are very memorable. You're gonna do what you're gonna do, obviously. However, I think you're really hindering yourself by making that decision.

does anyone know how many edge cases are? exluding simetrical and inverse?
btw I noticed that 75% of turbo, eveyithing but uperms are BH comms!!!

Chester made up a list of all the non-isomorphic 3 cycle cases. I don't remember the final edges case count to be honest :s but from experience it's probably around 15 or less, definitely less than 25 I'd say.

 

[Erdos]

I think it's 27 non-iso edge cases if I recall correctly, not that it really matters though. I remember being pretty surprised to hear it was that many, but I guess there's not as many rotations per iso case than it is for corners. I think corners was something like 15? But yeah, Chester has 'em all.

 

[pi.cubed]

I will not use anything profane.

Why not? World class memorization experts recommend you do so; profane things are very memorable. You're gonna do what you're gonna do, obviously. However, I think you're really hindering yourself by making that decision.

Yeah, I've thought about that. They do stick in memory. I just don't like them. I'm using violent images and blood etc, but not other profane stuff.

I've left out a lot because there are some letters which I don't use or images that don't apply to you.

DF = dolphin
IE = internet
KV = kill vehicle (poachers, death race etc)
KX = kick (kicks is said as kix)
MQ = molotov cocktail
OD = overdose
QJ = QJ 4x4
QL = Quail
SJ = social justice (judge with his gavel and wig)
TF = transformer
TJ = trojan horse
TS = table salt
UK = UK flag
UL = unlucky (usually the image associated with this is squashed by a random falling object)
UR = urine
US = US flag or zeus
VA = vaporise
VC = vacuum
VH = Van Helsing
VI = vice
VM = venom
VW = volks wagon
WP = weapon
WT = water
WV = wave

Wow. Thanks heaps. I got a lot from that.
How do you visualise weapon for WP? I already have AK-47, excalibur and another weapon. How do you keep them from being too similar?
How do you visualise IE, kick and 'kill vehicle'? Do you just visualise a kick coming from nowhere? [for kick]
Does anyone have anything else for PW? Atm I have Prince William but I would prefer a more familiar image.
Thanks
edit: Just realised I don't have GW either.

edit: lol 50th post.