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How do you guys predict AUF for the <RUL> Ja perm? I've got all the other PLLs figured out, and I sorta have a system for this one, but it isnt great.

It's the same thing as the <RUF> Ra-perm. If you don't use that alg, you can think of it as the same as the corners of the Rb-perm.

If that doesn't work, you can do this: if the front bar needs to go to the left (if it's a U' away from being solved) at the start of the alg, there will be no AUF.

It's kinda hard to describe because recognizing AUF comes mostly with practice, but hopefully some of this helped. :)
 
It's the same thing as the <RUF> Ra-perm. If you don't use that alg, you can think of it as the same as the corners of the Rb-perm.

If that doesn't work, you can do this: if the front bar needs to go to the left (if it's a U' away from being solved) at the start of the alg, there will be no AUF.

It's kinda hard to describe because recognizing AUF comes mostly with practice, but hopefully some of this helped. :)

The bar bit might help. What I had been doing is looking at the RBU sticker (if you've already pre-AUFed for the alg) and doing the AUF after that would solve that. But since I normally predict AUF from stickers on the front, I don't notice RBU as much.
 
The bar bit might help. What I had been doing is looking at the RBU sticker (if you've already pre-AUFed for the alg) and doing the AUF after that would solve that. But since I normally predict AUF from stickers on the front, I don't notice RBU as much.
Here are two more ways, both of which are pretty much equivalent to what @DGCubes suggested.

You can think of the Ja perm in the usual way as being a 2 corner + 2 edge swap, preserving the block on the front left plus a U', and then learn to always cancel undoing the U' into your AUF.

Alternatively you can think of the Ja perm as a pair anti-clockwise 3-cycle with no AUF preserving the block in the back right, so UBL+UL goes to UFL+UF goes to UFR+UR (you kind of use this idea already). Then instead of remembering that the back right block stays the same, remember that everything else shifts around anticlockwise. Then you just need to add (cancelling of course) a clockwise U into the AUF needed to correct the front left block to account for that.
 
hello everyone,

Has anyone developed, or could anyone develop algorithms for inserting the last F2L pair that also orient and permute the last layer corners?

I've searched but haven't found such an algorithm set. Has it been done before and are there any resources where I could find them?

thanks
Theres OLS......
Chect this out for full info............https://www.speedsolving.com/wiki/index.php/OLS
 
How do I solve a single corner on a 4x4? I was sitting at my desk scrambling the cube I just solved 5 minutes prior, and when I tried solving again, one corner is now flipped. What do I do to fix this?
 
This is a corner twist. This can happen on any cube: it's not solveable by moves, but instead, you need to hold the corner and twist it in place with your hands. It often happens by accident when you turn inaccurately.
 
What was the oldest speedcube store? Making a video on old speedcubes and I cant find when they were released.
 
The way averages are calculated some of the solve times are removed and then the averages is calculated from the remaining. In the Ao5 format the slowest and the fastest times are removed and the middle 3 is what is used to calculate the average. These times are often written in brackets. A "counting" time in this sense would be one of the times in the 3 that are not removed.

For example, if we have the Ao5: 9.00, 4.00, (2.00), (10.00), 5.00= 6.00 as (9+4+5)/3=6 and the "counting times" are the 9, 4 and 5.
 
So on the WCA site, they have a "Most Sub-X solves in Rubik's Cube" on the statistics page. Of course, most people with sub-5's have only one, but I've always wondered how they order the names. Right now, the first name is of course Patrick Ponce, which is followed by Mats, Feliks, Drew, Blake, Lucas, Max, Antonie, Kevin, and Seung. There doesn't seem to be a reason for the order, and there also doesn't seem to be a reason for choosing to leave out Hyo-Min Seo.

So if anyone knows the reason, I'll appreciate it if they told me. Thanks.
 
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