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[Help Thread] Big Cube Discussion (5x5 / 6x6 / 7x7 / etc)

xyzzy

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Joined
Dec 24, 2015
Messages
1,614
If you want to solve your cube with an OLL/PLL-like method, your only option is to learn more algs. Here's one possible solution (with the red face facing you):

R B 2R U2 2R U2 F2 2R F2 2L' U2 2L U2 2R2 B' R' // parity
2L 2R D2 2L' 2R' U 2L 2R D2 2L' 2R' U' // opposite swaps

(If you don't understand the notation, that doesn't matter; the link above goes to a cube simulation that plays out the moves so you can follow them one by one.)

Alternatively, use the reduction method and… you'll still have to learn some parity alg, but at least the parity algs will be much faster there.
 
Joined
Dec 3, 2018
Messages
40
I’m really bad at big cubes the higher I get the worse I am. Pls give tips on how to do 6x6 and 7x7 in under 10 minutes 5x5 tips would also be nice too.
 

Brady2335

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Joined
Jan 31, 2019
Messages
8
Learn commutators for the last centres on 6x6 and 7x7 and do freeslice. Also try learning r u variations for some of the harder OLLs and PLLs :)
 

suteytooty

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Joined
Mar 17, 2019
Messages
5
Hope this is the right place to get some help but I've just learned to solve the 5x5 and I've done it to completion three times except every time I have two adjacent block of edges that are swapped. As it stands now in the top layer I have a green bar in the red side, red bar in the screen side and other side is complete. Is there a 5x5 alg to sort this? Thanks
 

cuber314159

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Dec 20, 2016
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2016EVAN06
Hope this is the right place to get some help but I've just learned to solve the 5x5 and I've done it to completion three times except every time I have two adjacent block of edges that are swapped. As it stands now in the top layer I have a green bar in the red side, red bar in the screen side and other side is complete. Is there a 5x5 alg to sort this? Thanks
Same as 4x4 parity
 

One Wheel

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Feb 24, 2016
Messages
2,431
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Wisconsin
WCA
2016BAIR04
Hope this is the right place to get some help but I've just learned to solve the 5x5 and I've done it to completion three times except every time I have two adjacent block of edges that are swapped. As it stands now in the top layer I have a green bar in the red side, red bar in the screen side and other side is complete. Is there a 5x5 alg to sort this? Thanks
So like this, but on a 5x5? That’s a PLL parity that you can’t get on a properly assembled 5x5. I think you can switch the center caps around and resolve it, but I’m not 100% sure exactly how.

Edit: cycling 4 center caps by 1/4 turn will fix it.

image.jpg
 
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suteytooty

Member
Joined
Mar 17, 2019
Messages
5
Hope this is the right place to get some help but I've just learned to solve the 5x5 and I've done it to completion three times except every time I have two adjacent block of edges that are swapped. As it stands now in the top layer I have a green bar in the red side, red bar in the screen side and other side is complete. Is there a 5x5 alg to sort this? Thanks
Yeah exactly like that. Does that mean the cube wasn't set up right? Its not mega expensive - it's a Yuxin.

Will a parity alg sort it or will I have to pop the pieces out everytime I solve? Thanks for your help.

I'll try adjusting the centre caps a try again.
 
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One Wheel

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2016BAIR04
Yeah exactly like that. Does that mean the cube wasn't set up right? Its not mega expensive - it's a Yuxin.

Will a parity alg sort it or will I have to pop the pieces out everytime I solve? Thanks for your help.
Either disassemble the puzzle and reassemble it in a solved state, or take off four centers and cycle them by 1/4 turn (e.g. blue on white, white on green, green on yellow, yellow on blue) and re-solve. Either way once you get it to a fully solved state you won’t need to disassemble it to solve it, and there is no alg that will just switch two edges like that on a 5x5.
 

PEN.gu1nCXI

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Joined
Jun 11, 2019
Messages
11
Also, guys, I'm a noob at big cubes. Do you have any advice on how to be CN for the centers on a 4x4x4? I'm failing at the colour scheme right now. For example, I know that White and Yellow are opposite, Blue and Green are opposite, and Red and Orange are opposite. However, I don't know for instance where red should be relative to blue unless I have another solved cube for reference of the colour scheme. Any advice/techniques on how to grasp the colour scheme on a 4x4x4?
 

One Wheel

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Feb 24, 2016
Messages
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Location
Wisconsin
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2016BAIR04
Also, guys, I'm a noob at big cubes. Do you have any advice on how to be CN for the centers on a 4x4x4? I'm failing at the colour scheme right now. For example, I know that White and Yellow are opposite, Blue and Green are opposite, and Red and Orange are opposite. However, I don't know for instance where red should be relative to blue unless I have another solved cube for reference of the colour scheme. Any advice/techniques on how to grasp the colour scheme on a 4x4x4?
1. Practice
2. Look for a corner when you are ready to start your fourth center that has two of the colors you’ve already solved on it: if you get the third one in the right place relative to those two, you’re good
3. What I do, which is not optimal. Keep opposites opposite (easy, like you say) and when you get to placing your first f2l pair look to see if it lines up. If it goes in properly you’re set. If only one side will line up then insert it so the R or L side matches and the F or B doesn’t, then do Uw2 Mw2 Uw2 Mw2 to quickly switch your F and B centers and cross edges. It’s a bit of a cheap trick, and costs me a second or two, but I’ve got bigger fish to fry at 1:25.
 
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