20 turns suffice for 3x3x3!

[Lucas Garron]

They aren't in real FMC, so neither are they here I think.

Cube rotations or slice moves? Also, could you stop trying to answer for Chris?

65 Moves

Very natural solve:

x y' L F2 D' R' D' L2' y' R U R' U
L U2 L' U' L U L' U' y' R' U
R U' R U R' y U' R' U2 R2 U
R' U' R' U' R U R' U' R d
L' d' R d L U' r' U' r d
y2 R' U2 R' U' y R' F' R2 U' R' U
R' F R U' F

 

[fanwuq]

What happens if my 9th move was a F2?

BD'F2U'R2)D2F'D2F2

Or, Can the 10th move be a F2?

Are we allowed to do something like R R' in the middle of the solution?

I got 25 moves with F'L2 premoves for F2L+EO and can't go further until my questions are clarified.

RU'R2L2U2D2B2)U'BF')L2B'L)U2L'U'LU2LF')L'UFU2F2)

 

[trying-to-speedcube...]

They aren't in real FMC, so neither are they here I think.

Cube rotations or slice moves? Also, could you stop trying to answer for Chris?

I'm not answering to a question you edited into your post after mine. So cube rotations.

I will not reply to your questions anymore.

 

[Feanaro]

D2 R' L2 B2 D' R' U' R U' F'
U' F2 U F' U R U' R' U' F'
L F L' R' U2 R U' F U F'
U L' U L B' U B U R' F'
U F U' R' F R F' U R F'
U' F R F' U' F U F R' F'
F' U F U2

64 Move solution, and my first Fewest Moves contest ever

 

[Lucas Garron]

Finally! Got a 33-move solution.

Was trying really hard to make it under 40 and avoid the constraint, but then I found a much better ending.

My trick:

Spoiler

Take that, Chris!
(spacing)
(spacing)
(spacing)
(spacing)
(spacing)
(spacing)
(spacing)
(spacing)

 

[TMOY]

Here is a nice solution I found; You can easily check that all the highlighted moves involve the face which started as F.

u2 l D l' x2 y' U2 R U' R F2 R' U R f2 (13) corners + 2 edges, up to 2 moves
x2 z' F E2 F' D2 L' (6) insert another edge and finish corners
D' R' E2 R B2 F' E' F (10) 3 more edges
y' D' U2 L' E L2 E' L2 E (= U D' y') L D R2 U2 D' (16) last 6 edges
Total: 45 HTM

 

[qqwref]

OK, I'm going to try this.

[Around an hour later] I have found a solution! It is 66 moves, not so great, but I think it's not all that bad considering the constraint.

[COLOR="white"]D2 R' L2 B2 D  R  U2 F  U  [B]F'[/B]
R' D2 F' U  F  D' L' D  L  [B]F'[/B]
L' R  U' R' F2 R  U' R' U  [B]F'[/B]
U' F2 U2 F' U' F  U' F  U  [B]F'[/B]
U' F' U  F' U' L2 U2 F  D  [B]F'[/B]
U2 F  D' F' L2 F  L2 F  D  [B]F'[/B]
U2 F  D' F' U2 L2[/COLOR]

 

[xXdaveXsuperstarXx]

I'm a rebel. Worse then any Rebel Roux or those nasty hybrids of Fridrich-Roux people. I Refuse the challenge. *Instant I click submit button I get sniped*..... No, seriously I don't feel like it.

 

[cmhardw]

The spirit of the challenge is to find a solution while minimizing the damage caused by the forced turns, or possibly even being clever enough to utilize the forced turns to aid you in your solving. I will try to write a more clear variation to the puzzle that basically does this.

Obviously I was not clear with the first post, and I don't want to make people angry who have already started working on solutions, so any changes will only be implemented as a new variation that can be attempted.

Of course you can avoid the forced turns with stuff like B F' B' F, but try to follow the spirit of the event for a more fun solve ;-)

Chris

P.S. Wonderful 33 move solution Lucas, I would never have thought to do that! I totally got cube rolled! Nice one!

 

[mrCage]

Hi Chris. I know why you specified every TENth (or less) move to be a F/F' move. Otherwise there are "trivial" long solutions ...

Per