Random Cubing Discussion

[aronpm]

I do so because I respect myself too much to put such an error next to my name when it's just so simple to get correct.

Unfortunately you don't represent the majority of the population in that aspect

 

[Yes We Can!]

Chris: I was recently thinking about this when trying to figure out a nice, short and attractive title for a youtube tutorial. I thought "The easiest solution to Rubik's Cube" would be good. Surely, when a cuber reads this, it seems grammatically wrong but when you think about it, it's perfectly fine.

 

[Zane_C]

I stuffed up a two flip and got this 13 move U-perm: R' U2 R2 U R' U' R' U2 R U R U' R'

 

[qqwref]

New idea for all you BLD freaks out there: BLD average of 12.

Not an average of BLD solves, but a blindfolded average. You can use as much inspection as you want before all of the solves, but once you start the timer for the first cube, you are no longer allowed to look at the cubes. (So basically you're doing a 12 cube multi, but individually timing each cube's exec, and ignoring the amount of memo time.)

 

[Cyrus C.]

New idea for all you BLD freaks out there: BLD average of 12.

Not an average of BLD solves, but a blindfolded average. You can use as much inspection as you want before all of the solves, but once you start the timer for the first cube, you are no longer allowed to look at the cubes. (So basically you're doing a 12 cube multi, but individually timing each cube's exec, and ignoring the amount of memo time.)

Speed Multi BLD?

 

[cmhardw]

New idea for all you BLD freaks out there: BLD average of 12.

That kind of reminds me of the speed averages of 12 I used to do back in the day for fun (but done blindfolded instead of sighted obviously). I'm not sure if I would be willing to attempt the blindfold average of 12 yet, I don't even know how I would do with a regular 12 cube multi attempt. This sounds difficult to attempt to be honest, but I'm sure there are some multi people out there who may be up for the challenge

As to the speed average of 12, for those who haven't done it before, the goal is to perform an average of 12 as quickly as possible. The time measures how long it takes you to perform the full average attempt. You can either do this on your own, scrambling for yourself, or have someone scramble for you. Just make a note as to which format you used. I think I was able to get a time of around 4:30-4:45 with my roommate scrambling my next cube for me. I don't remember my scrambling alone times, but it was obviously a bit slower.

Definitely worth trying if you're bored and have never done it before. It's a good way to waste time and also get some practice in.

 

[Ordos_Koala]

speed average of 12... sounds interesting I'm sure I'll try it (but I'll surely miss the pre-inspection time)

 

[Tim Major]

Beginner Layer by Layer method.
It uses 2 algs (R U R' U' R' F R F') and (F R U' R' U' R U R' F')

Steps.
Cross. (intuitive)
Corners. (intuitive)
Edges. [FU->FR: R (R U R' U' R' F R F') R'. BU->RF: F' (R U R' U' R' F R F') F.
Edge orientation. (alg 1, or 2 or both)
Corner Orientation on top. (variations of 1 and 2)
Corner Permutation with T-perm or Y-perm. (combination of alg 1 and 2)
Edge Permutation with T-perm or Y-perm. (combination of 1 and 2)

Scramble: B D L2 U' B L B' F' R2 U B2 R' F' L2 B R' U2 D L' R' U' L B F' L2

Spoiler

D' U' L' F2 U B2

R U R' U R U' R'
U2 L' U L
L U L'
R' U' R U' R' U R

U2 y' R (R U R' U' R' F R F') R'
y' F' (R U R' U' R' F R F') F
U y' F' (R U R' U' R' F R F') F
U2 y' R (R U R' U' R' F R F') R'

U2 (F R U' R' U' R U R' F')

U2 (F R U' R' U' R U R' F') U2 (R U R' U' R' F R F')
U2 (F R U' R' U' R U R' F') (F R U' R' U' R U R' F') U' (F R U' R' U' R U R' F')

U' (R U R' U' R' F R F') (F R U' R' U' R U R' F')
(R U R' U' R' F R F') (F R U' R' U' R U R' F')
(F R U' R' U' R U R' F') (R U R' U' R' F R F')
U' (R U R' U' R' F R F') (F R U' R' U' R U R' F') U2

About 30 moves cancel (I did 2 T-perms in a row, no AUF, to show)
All PLLs can be solved more efficiently than CPLL, EPLL, but for beginners, this is how I would do it.

Edit: I used alg.garron.us, but the preview cube was tiny, so I didn't bother

 

[Cubenovice]

Why not:
Cross + three corners
Then all edges intuitive via keyholing
Then only Pochmannesque corners via Y-perm = only one alg to learn
or even better: commutators for last 5 corners= NO algs

 

[Mike Hughey]

New idea for all you BLD freaks out there: BLD average of 12.

Not an average of BLD solves, but a blindfolded average. You can use as much inspection as you want before all of the solves, but once you start the timer for the first cube, you are no longer allowed to look at the cubes. (So basically you're doing a 12 cube multi, but individually timing each cube's exec, and ignoring the amount of memo time.)

I hate to admit it, but I still like ben's method better. Use a single cube, perform each scramble, then memorize, then unscramble it. Also memorize the scrambles. Then with a single cube, go through the whole average, scrambling, then solving. For full effect, it must be done on video. It would be so much more impressive.

 

[Ordos_Koala]

I hate to admit it, but I still like ben's method better. Use a single cube, perform each scramble, then memorize, then unscramble it. Also memorize the scrambles. Then with a single cube, go through the whole average, scrambling, then solving. For full effect, it must be done on video. It would be so much more impressive.

but when you learn scrambles, you can then just do it backwards...

 

[qqwref]

As to the speed average of 12, for those who haven't done it before, the goal is to perform an average of 12 as quickly as possible. The time measures how long it takes you to perform the full average attempt. You can either do this on your own, scrambling for yourself, or have someone scramble for you. Just make a note as to which format you used. I think I was able to get a time of around 4:30-4:45 with my roommate scrambling my next cube for me. I don't remember my scrambling alone times, but it was obviously a bit slower.

So, if you have someone scrambling, it's equivalent to a 12-cube relay, and if you don't, it's equivalent to a Real Man's average (of 12), right?

I hate to admit it, but I still like ben's method better. Use a single cube, perform each scramble, then memorize, then unscramble it. Also memorize the scrambles. Then with a single cube, go through the whole average, scrambling, then solving. For full effect, it must be done on video. It would be so much more impressive.

You'd do the whole average blindfolded, right? This would look kinda cool, but from the perspective of someone watching, if they don't see the memo it's just a demonstration of how much data you can remember, whereas if they DO then it loses some of its effect from knowing you've tried the scrambles before (even if it was just during memo). I think mine would look more like an average of 12 on film (just with a very long inspection phase before any solves begin).

 

[JonnyWhoopes]

but when you learn scrambles, you can then just do it backwards...

Of course you could, but I have a feeling that anybody with enough drive to do this is going to it right. Otherwise it would just be a waste of time, as it would be obvious they didn't do it normally.

 

[ben1996123]

So, if you have someone scrambling, it's equivalent to a 12-cube relay, and if you don't, it's equivalent to a Real Man's average (of 12), right?


You'd do the whole average blindfolded, right? This would look kinda cool, but from the perspective of someone watching, if they don't see the memo it's just a demonstration of how much data you can remember, whereas if they DO then it loses some of its effect from knowing you've tried the scrambles before (even if it was just during memo). I think mine would look more like an average of 12 on film (just with a very long inspection phase before any solves begin).

Something else I just thought of (although it would probably take hours), 3x3 bld reverse speed bld. Start the timer, look at the scramble without the cube and figure out what the cube will look like (reverse speed bld), then apply the scramble to the cube without looking at the cube, put blindfold on, and then solve. So its kinda like BLD with no memo. I've done this on floppy cube before where I would scramble the cube without looking at it and work out what the scramble was. Then put bldfold on and solve with no memo.

 

[qqwref]

Random E perms:
x' R U' R u2 L' U M' x' U' R u2 L' U L R2 x (14s)
R' U L' u2 R U' M' B r' u2 R U' r x' (13s)

 

[amostay2004]

Random E perms:
x' R U' R u2 L' U M' x' U' R U2 L' U L R2 x (14s)
R' U L' u2 R U' M' B r' u2 R U' r x' (13s)

First one doesn't seem to work

 

[Kenneth]

4x4x4 centres and edges tip:

Pair up last four centres as 1x2 blocks, that you store at the B, D and F sides of the r and l slices (any random order). If you do that you can pair up and store six dedges (store in BR, BL, DR, DL, FR, FL) before you compleate the centres. The benefit is that you can pair edges using r/l + U2 moves without having to restore the centres after. If you have to do a U or a U', then put a solid centre in U first (any of the four will do). Fixing the centres after the first six edges is easy and few moves.

While pairing the 1x2 centres you may get into a 'checkers' situation when doing the last ones, the easiest way to fix that is to move one already solved block having the same colour as one of the pieces at top to the U-layer to form a 3-piece L, turn U or U' and replace the block you removed with the half new one.

If you are really advanced you can pair up and place 8 dedges at the R and L sides, keep track of how many that are flipped (you need this for parity), solve centres while pairing two dedges to FD/BD (domino moves), pair the last two dedges and solve OLL-parity in one go (5 algs needed) and then you just bloody phase the rest to solved state...

 

[Tim Major]

Why not:
Cross + three corners
Then all edges intuitive via keyholing
Then only Pochmannesque corners via Y-perm = only one alg to learn
or even better: commutators for last 5 corners= NO algs

The idea of mine was to be easy for anyone. Not everyone can learn commutators right off the bat, and the first method you talk of can run into some bad cases on the last 5 edges.
Also, the algs I use, if you put them together, form the "1 alg" you use. Mine are just used more effectively.

 

[Kirjava]

Anyone know a comm to cycle 3 edge on a face turning octahedron?

The only ones I can find affect edges.

 

[irontwig]

Anyone know a comm to cycle 3 edge on a face turning octahedron?

The only ones I can find affect edges.

lolwut