Fun Solving Challenge

[philkt731]

Scramble your cube with the following algorithm: U

Challenge: Solve the cube without turning the U face. Then, do it as afst as possible

Jim Mertens showed me this in Lexington, its fun to try to fidure it out on your own. This means you can't do d moves or E moves either. (You can do cube rotations, but you may not turn the face originally used to scramble the cube, so say you did a z rotation, now you cannot turn R, l, or M) My best is 3.16, I'll post my solution later.

 

[Dene]

Something like U perm, A perm, J perm.

 

[Swordsman Kirby]

x2 D, no U turns. 1.97 is my best with an STM optimal alg. [[E:M2]:L'] Never turns what originally was the L-center.

 

[MistArts]

Scramble your cube with the following algorithm: U

Challenge: Solve the cube without turning the U face. Then, do it as afst as possible

Jim Mertens showed me this in Lexington, its fun to try to fidure it out on your own. This means you can't do d moves or E moves either. (You can do cube rotations, but you may not turn the face originally used to scramble the cube, so say you did a z rotation, now you cannot turn R, l, or M) My best is 3.16, I'll post my solution later.

x2 D, no U turns.

 

[pcharles93]

You can't turn the original face. Unless you found out the real solution and just posted that one to mess with us.

 

[MistArts]

Spoiler

Fa Ra2 Fa' D' Fa Ra2 Fa'

 

[Swordsman Kirby]

Spoiler

Fa Ra2 Fa' D' Fa Ra2 Fa'

Not a fan of anti-slice.

 

[cuBerBruce]

Spoiler

I came up with the following rather straightforward solution, although not as elegant as the solution MistArts gave:

R2 L2 D' R2 L2
D2 F2 R2 L2 B2 R2 L2
D R2 F2 B2 L2 F2 B2 D

 

[PatrickJameson]

Spoiler

R2 L2 D' R2 L2 D2 M2 B2 M2 B2 D S2 L2 S2 L2 D

Not very good. Bob Burton showed me a nice solution at nationals but I forgot what it was :/.

 

[Odin]

Woot Spoiler Below
does L2 R2 M2 D' work?

 

[jfly]

Woot Spoiler Below
does L2 R2 M2 D' work?

No, once you do the M2, your U face becomes your D face, and you're not allowed to turn D.

 

[deadalnix]

My solution (select to see) :

M'U2D2M'U'M'U2D2M' or M'E2MU'M'E2M

 

[Swordsman Kirby]

Spoiler

R2 L2 D' R2 L2 D2 M2 B2 M2 B2 D S2 L2 S2 L2 D

Not very good. Bob Burton showed me a nice solution at nationals but I forgot what it was :/.

The T-perm? That uses U turns.

 

[Sa967St]

Something like U perm, A perm, J perm.

U and J perms have U turns :\

 

[blah]

Is it a super highly conjugated D' turn? If it is, I've found it Actually, I've found multiple solutions, all variations of each other

Edit: Oh MistArts found it first... Oh well