Hyperspeedcubing

Renslay said:
4x4x4x4 shouldn't be hard, although some parities can be a bit challenging. But if you understand parities on a regular 4x4x4 (e.g., what causes them on the first place), you can figure those out. The rest is pretty straightforward. Actually, a 5x5x5x5 is easier! (But much longer).

Can't help with the others, sorry, but if you stuck with 4x4x4x4 or 5x5x5x5, I can help.

And welcome to the hyperspace! :D
Click to expand...
I got the ridge parity and I've been thinking for so long but can't figure it out:(
 
Do you mean something like this? See the yellow-orange pieces.

1775380977911.png


That was one of the hardest part in the entire solve, I admit :)

I guess you tried to swap the pieces around with a commutator (that moves the pairs), but it just won't do.
If I recall well, the trick is that you have to "break" up the pairs that already formed (by pairs, I mean two yellow stickers are forming a pair, and two oranges are forming a pair).
You have to move the pieces around so a yellow on the left side of the screen will pair up a yellow with the right side of the screen.

If you do it correctly, the end result will be this: there are two yellow/orange pairs again, but now there will be two other sticker colors that are similarly mismatched:

1775382305642.png


See how not just the yellow-orange pairs are not forming a 2x2 (instead they are two pairs), but the red-blue pairs similarly broke up!
And now you can solve it with a normal commutator moving the pairs around.

If you are still struggling, I need a little more time to recreate a proper explanation sometimes in the upcoming days.
 
Oh! that's not what i meant. I've already figured that out! What i meant was when I'm in the 3x3x3x3 solving stage I need to flip one of the ridges. Sorry for the confusion!
 
You just have to execute a good old OLL parity algorithm, like this one:
 Twizzle link 
r U2 x r U2 r U2 r' U2 l U2 r' U2 r U2 r' U2 r'

On the 4x4x4x4, a U2 move is just a UO2 move (two clicks on a UO sticker), a r2 move is a wide move on the right side (1-2 RO), and so on.
On a solved 4x4x4x4, if you follow through the algorithm above with purple top, yellow inner, green front, you'll get this (the main result is the purple-green ridge swap):

1775399732510.png
 
Last edited:
You must log in or register to reply here.
Back
Top