Really tough challenge for 3x3x3

[AvGalen]

For those of you that are bored with solving the 3x3x3, try this challenge:

1. scramble with only r u f turns
2. solve with only r u f turns

I almost gave up the first time I tried, but got it after 90 minutes. The second time it only took 30 minutes

Using multiple cubes, pen and paper or any other tool is allowed. If anyone knows a computer-program that does this, please let me know

If this challenge is to hard, try scrambling/solving with only r u turns first

BIG EDIT
Just to be extra clear:

• r u f are double-layer turns and are not the same as R U F
• r u f are also not the same as L D B because there is an extra cube rotation involved
• You are allowed to do r r r so naturally r2 and r' (and u2 u' f2 f') are allowed as well
• You are NOT allowed to use cube rotations (otherwise you would only need r OR u OR f)

And for those that cannot do this challenge, just try to make it easier until you can do it. Here are some variations ordered from tough to easy (please, pay attention to the casing):
only r u turns are allowed
only r u F turns are allowed
only r U turns are allowed
only r U F turns are allowed

 

[miniGOINGS]

For those of you that are bored with solving the 3x3x3, try this challenge:

1. scramble with only r u f turns
2. solve with only r u f turns

I almost gave up the first time I tried, but got it after 90 minutes. The second time it only took 30 minutes

Using multiple cubes, pen and paper or any other tool is allowed. If anyone knows a computer-program that does this, please let me know

wow, you automatically start with a petrus block ya for me

 

[puzzlemaster]

wait arnaud.. do you mean R U F? i'm not doubting your intelligence... i'm just not sure if you might mean Rw. sorry for being disrespectful

 

[JustinJ]

For those of you that are bored with solving the 3x3x3, try this challenge:

1. scramble with only r u f turns
2. solve with only r u f turns

I almost gave up the first time I tried, but got it after 90 minutes. The second time it only took 30 minutes

Using multiple cubes, pen and paper or any other tool is allowed. If anyone knows a computer-program that does this, please let me know

wow, you automatically start with a petrus block ya for me

No, he means you take the outer layer AND the middle slice with it.

I've tried this with only r and u, it surprised me how scrambled it got.

 

[tim]

Yeah, that's tough. After 5 minutes i still don't have any idea how to solve it .

 

[Odin]

Can you use inverts?

 

[tim]

Can you use inverts?

Inverts of what? Of the scramble? That would be stupid.

 

[bamman1108]

can you use y rotations?

 

[Odin]

Can you use inverts?

Inverts of what? Of the scramble? That would be stupid.

Uhhh inverts such as r' u' f'....

 

[tim]

Can you use inverts?

Inverts of what? Of the scramble? That would be stupid.

Uhhh inverts such as r' u' f'....

Uhm, have you ever thought about your question? Try to solve the scramble u without using u'.

 

[Gparker]

ok i got ex-cross, then i just messed it up

 

[JLarsen]

Did it wrong, redoing*

Yeah, not doing this, I see where this is headed.

 

[watermelon]

If anyone knows a computer-program that does this, please let me know.

KSolve could be of assistance.

 

[pjk]

It is funny that you bring this up... I was trying this just the other day. It is much harder than you'd expect. I'm yet to be able to do it, although I haven't spent a lot of time on it.

 

[EmersonHerrmann]

Gave up after 2 minutes

 

[bamman1108]

I didn't have much trouble with this challenge. Why is everyone stumped? I've done it twice within 15 minutes.

 

[JLarsen]

I didn't have much trouble with this challenge. Why is everyone stumped? I've done it twice within 15 minutes.

I would bet my life you're not doing it right. I tried this at first as just RUF and I got 27 first try. Sadly that's not what it is. This is soooo freakin hard,

 

[bamman1108]

Imagine it as only using L B and D and it is soo much easier.

 

[not_kevin]

Imagine it as only using L B and D and it is soo much easier.

The issue, 'tho, is it's not quite. Instead of L, it's actually L(x). So, no, it's not.

 

[Sa967St]

Imagine it as only using L B and D and it is soo much easier.

You're not doing it right then (assuming cube rotations are not allowed). You're doing a cube rotation after every move since L is Rw(x), B is Fw(z), and D is Uw(y).

wow, you automatically start with a petrus block

no you don't, only the DBL corner remains solved.