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

#### Queenofkings

##### Member
I used to solve the 5x5 by doing the 4x4 first (ignoring the middle slice) then solving the 3x3 (big corners) to get the edges. That would bring me to the attached photo where I had a technique to swap the center edges until they were complete, finally solving the 3x3 with big centers to finish. That was years ago and I’ve forgotten what technique I used - muscle memory is giving me: u M u’ M’ after rotating the outer slices to get the configuration I want but of course that algorithm messes with all the centers so even if I get one right the others are screwed up. Does anyone have a suggestion? All of the center fixes I can find are for before the edges are done.

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#### BenChristman1

##### Member
I used to solve the 5x5 by doing the 4x4 first (ignoring the middle slice) then solving the 3x3 (big corners) to get the edges. That would bring me to the attached photo where I had a technique to swap the center edges until they were complete, finally solving the 3x3 with big centers to finish. That was years ago and I’ve forgotten what technique I used - muscle memory is giving me: u M u’ M’ after rotating the outer slices to get the configuration I want but of course that algorithm messes with all the centers so even if I get one right the others are screwed up. Does anyone have a suggestion? All of the center fixes I can find are for before the edges are done.
Go to 5:10 in the video. He uses a 6x6 for his example, but it works for any big cube.

#### Queenofkings

##### Member
Go to 5:10 in the video. He uses a 6x6 for his example, but it works for any big cube.

Thanks for the suggestion, but that disrupts the edges. I’m looking for a way to move the center pieces without having to redo the edges.

#### Nmile7300

##### Member
Thanks for the suggestion, but that disrupts the edges. I’m looking for a way to move the center pieces without having to redo the edges.
It is much better and faster to solve the centers before the edges on big cubes. The only real exception is the Yau method and even then, that's just a few edges, not all of them.

#### xyzzy

##### Member
I used to solve the 5x5 by doing the 4x4 first (ignoring the middle slice) then solving the 3x3 (big corners) to get the edges. That would bring me to the attached photo where I had a technique to swap the center edges until they were complete, finally solving the 3x3 with big centers to finish. That was years ago and I’ve forgotten what technique I used - muscle memory is giving me: u M u’ M’ after rotating the outer slices to get the configuration I want but of course that algorithm messes with all the centers so even if I get one right the others are screwed up. Does anyone have a suggestion? All of the center fixes I can find are for before the edges are done.
Commutators. Some examples:
3R U 3R' 2U 3R U' 3R' 2U'
3R U 2R U' 3R' U 2R' U'

#### DNF_Cuber

##### Member
You can basically do niklas but with slices for the Ls and Rs

#### Queenofkings

##### Member
It is much better and faster to solve the centers before the edges on big cubes. The only real exception is the Yau method and even then, that's just a few edges, not all of them.
[/QUOT
It is much better and faster to solve the centers before the edges on big cubes. The only real exception is the Yau method and even then, that's just a few edges, not all of them.
Yeah that’s how I do it now, I used to use the 4x4 method I described when I taught other people how to do it it b/c it was easier for them sometimes.

#### ABCubeTutor

##### Member
I used to solve the 5x5 by doing the 4x4 first (ignoring the middle slice) then solving the 3x3 (big corners) to get the edges. That would bring me to the attached photo where I had a technique to swap the center edges until they were complete, finally solving the 3x3 with big centers to finish. That was years ago and I’ve forgotten what technique I used - muscle memory is giving me: u M u’ M’ after rotating the outer slices to get the configuration I want but of course that algorithm messes with all the centers so even if I get one right the others are screwed up. Does anyone have a suggestion? All of the center fixes I can find are for before the edges are done.

my new method solves this, and also offers a new way to solve the 5x5x5. https://www.speedsolving.com/wiki/index.php/ABCube_Method

not to pat my own back, but there is a new method for solving big cubes, and it undoes parity and eliminates memorizing algorithms. it is https://www.speedsolving.com/wiki/index.php/ABCube_Method it is not great for speedcubing, but excels at large cubes, it does the centers last because the parities can be erased by a simple center slice turn,

#### TheSlykrCubr

##### Member
what should i average on 6x6? I use Redux btw

average under 1:10 on 4x4 (Yau)
and under 2:30 on 5x5 (Redux)

#### xyzzy

##### Member
what should i average on 6x6? I use Redux btw

average under 1:10 on 4x4 (Yau)
and under 2:30 on 5x5 (Redux)
Probably 4:30-5:00.

Rule of thumb is that compared to 555 times, 666 times are a bit under double and 777 times are a bit under triple.

#### abunickabhi

##### Member
Probably 4:30-5:00.

Rule of thumb is that compared to 555 times, 666 times are a bit under double and 777 times are a bit under triple.
Yeah true, 6x6 times are double of 5x5 times.
and 7x7 is triple of 5x5 times.

#### KFCubes

##### Member
I was struggling a lot with l4e on 5x5. I watched a Cubeskills video on it, and it was really helpful, but it was still primarily focused on slice flip slice. Is there another method for l4e that I should be using?

#### ZB2op

##### Member
Any 5x5 centers tips.

#### KWCuberWasTaken

##### Member
hi, so I am wondering what are the best commutators for the 6x6 last two centers, mainly for the last 2 center edges (2 on each center need to be solved)

thanks a lot!

edit: didnt know how this worked, this was my first time posting something. i will ask in a different forum

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#### MJS Cubing

##### Member
Hi, welcome to the forums! This video may help, not sure what level you are at.
You may have better luck asking this question in a mega thread, and you can find these by searching in the search bar. Here's a big cube discussion thread that I'm sure will help you.

#### KWCuberWasTaken

##### Member
Hi, welcome to the forums! This video may help, not sure what level you are at.
You may have better luck asking this question in a mega thread, and you can find these by searching in the search bar. Here's a big cube discussion thread that I'm sure will help you.
thanks! will do!

#### KWCuberWasTaken

##### Member
okay i probably sound like a complete beginner asking this but what are some commutators for 6x6/7x7 last two centres? mainly for the very last part. also this is my first reply in a thread so please tell me if I did something wrong

#### KWCuberWasTaken

##### Member
Any 5x5 centers tips.
build blocks. i would start with 2x2 or 1x3 blocks as far as i know. a mistake i made when starting out was i made a cross on the centre and then inserted the corners. make sure not to do that

#### BenChristman1

##### Member
okay i probably sound like a complete beginner asking this but what are some commutators for 6x6/7x7 last two centres? mainly for the very last part. also this is my first reply in a thread so please tell me if I did something wrong
Go to about 5:10 in this video. He uses a 6x6 as an example, but it works for any big cube.