In this video I'm going to show you how to solve a 5x5 Rubik's Cube
Check out my other videos showing you how to solve a 2x2 Rubik's Cube, a 3x3, a 4x4 and even a 5x5
In this video, we're going to start solving the edge pieces of this 5x5 Rubik's cube
So you should have got these centerpieces all fixed in place all complete
The next step is to start working on these edge pieces
Now remember I said there was a way we can avoid a certain algorithm
Well if you see this parity error here where the pieces are flip-flopped
This is the same parity error that you can run into on the 4x4
And to get out of this you use the same algorithm as on the 4x4
And it's quite long and difficult to remember
Now there is another parity error that we can fall into when also doing these edge pieces
Which we might fall into, we might not
However this particular parity error we can completely avoid altogether and very, very easily
And I'm going to show you a way of solving these edge pieces
and completely avoid ever possibly falling into this parity error
So if you already know how to solve a 4x4 or you've watched my 4x4 Rubik's cube tutorial
All the moments that we're going to do here will be very familiar to you
We want to start matching all these edge pieces together
You see how we've got all different colours
So we want start matching them together
So the first step is to find two pieces that have got the same two colours on them
One of them wants to be the center piece
and the other one either wants to be at the top or the bottom, it doesn't really matter which
So have a look around your cube and see if you've got any already in the correct place
Sometimes you have, sometimes you haven't
If you haven't we'll just have to put one in place
On this occasion we have got one in place
I've got a red and a blue here on the middle plane
And red and blue
And they're in the correct orientation too
Red blue, red blue
I've got a blue on the front and a red on the front
If they've both got blue facing us, that would not be correct
You'd have to work the cube round to put it the other way
The reason we want different colours on the face of the same two is because we split the cube
And bring them together
So when we bring them together we make a pair
As per the 4x4 Rubik's Cube what we do then
We need to move it onto the top because we have to repair our centers
So if we repair our centers we split them back apart
So we move this pair onto the top so we can repair our centers
and we'll then split these two that don't match. However..
Because we've just moved these two on to the top we've turned these vertically now
so I can't repair the centers or I'll just mess this center up
So what do we do?
Well this is the pair we've just put here
We need to bring this face back down, which will bring this face back down
So we'll just move this pair onto the front
Move the pair onto the front, now we can turn this face back down
Which will just bring a random three down
And that will make these horizontal again
So we can twist the cube back to repair our centers
And don't worry if you didn't follow that, we're going to keep repeating the same process
So look for another two pieces that match
Remember we've still got our pair up here
So look for another two
I don't think we've got any already in the correct place this time
So if you haven't we just need to pick a colour and find an edge
So white and orange for example
We just need to find another white and orange
I've got one here
Turn it round
I've got them both on the front except white orange, white orange
On both sides the whites are facing us
So if I brought these together, we get this and this is no good
These are not a pair
They're in the wrong place
This one wants to be up here
So we need to position this up here
You should be able to figure out how to do this
If you're doing a 5x5 it should be quite easy to figure out how to do this
Move it to the top, put it on the back
I'll bring it down so that's on the back face and I'll just turn it back
So now I've got white and orange, white and orange
And the orange is on the front and the white is on the front
And then twist the cube through the middle bringing them together
And we do the same steps one more time
We'll move this pair that we've just made onto the top
Now so we can bring this down and repair our centers
We move them to the front here so now they're on the front
And now these here are just mixed
So we can turn this face back down
Turn his face back down and now because these are just mixed we can repair our centers
So if we've repaired our centers and we've left the pair just here
And we're going to keep doing that
Now I said earlier we can do this in a way where we will avoid this parity error
And we're doing it now
What some people do, after they've done this you look for the other white and orange wherever it may be
and then line it up and you make a row of three and then keep making rows of three
However doing that you can run into that parity error
So how do I avoid it?
Well, I just make a pair on every single edge before I even think about making any of them into threes
So if you make a pair on every single one
If they're already paired up in the right orientation like this
When we come to make a three
Well because these are lined up it's then impossible for this one to be the wrong way up
It's impossible then to get into that parity error
Such a simple technique for avoiding such a complicated algorithm
So make just a pair
Doesn't matter if it's bottom or top
These two here, or these two here
Just make a pair on every single edge before thinking about making a three
And don't worry, even if you do get into this parity error I will show you how to get out of it
But if you follow my steps how to do this you will never ever get into that parity error anyway
So let's continue
I've got an orange and a yellow here, I've got an orange and a yellow here
Bring them together
I've made a pair
And it's the same as before
I'll put them onto the top
I bring them round and I turn this face back down
And when I come to repair my centers this time I have got a pair here
So what's happened? Why have I got a pair here?
I've got the pair that I've just made here
I will just reset and explain what we're doing
This is our new pair that we're trying to make
We're bringing these ones together
And if we look..
The edge that we bring down to replace these, if you look..
Like with a 4x4 are these back pieces here
If you look this is white and orange, these will end up just here
And, if you look, this one's top, middle, bottom
If you angle your cube this way, this is how these come down, top, middle, bottom
and these two are on the top
So if I do it slow and you try and follow the back
Bring it up, as I move this pair to the front
we bring what was the back, down
So what is here, these two on the top here
come down and finish here
So what do we do? Because we don't want to split that pair when we've made our new pair
Otherwise we're not progressing, make a pair just to split a pair, you haven't progressed
So we look on the back
This pair here
Will be this pair here so we can't use these, so what do we do?
Well, it quite easily
Turn this top
Look on the back and now this pair doesn't match
So we can just bring these here and it doesn't matter that we split these apart
So
Put them to the top
Turn them to the front, which has now brought these round to the side which was the back
Bring them down and now we don't have a pair on this edge
So when we repair our centers, we just split a mixed pair
As you start to fill them up you start to need to check your back
So let's look for another pair
I can use this one here
We've got green and white, green and white
Now we can bring them together
Except they're mixed, we've got white on the front and the front
I'll just position these
So I've got green on the front on one on white on the front on the other one
White green, white green
Bring them together
Remember what I said before, now we need to check our back
So look up, this is the back
Angle your cube this way, and these don't match
So we can use this back, this is fine
Move it up
Bring them to the front so they're safe
Turn this face back down
These don't match so we can repair centers, no problem
And continue doing the same, look for another pair
Red and white here
Red white, red white
Bring them together, making another pair
Look up onto the back
This time because our pair is on the bottom of the three, top, middle, bottom
We need to look to the back and make sure the bottom two don't match, which they don't
None of them match but if the top two did, it wouldn't matter
So we can use that back face, no problem
Move them to the top, bring them round
Turn this face back down
And we can repair our centers
Look for another pair
None are lined up, just choose a colour
I'm going to choose yellow and blue
Start by looking for the center piece because if you choose an edge piece
You might find when you find the middle it's already paired
and then to match these two you'd be making a three
So start with a middle and then look for a side piece
So I've got yellow blue, yellow blue and by chance the other one is here
Now I could do all three if I wanted to and it's exactly the same process
You'd move three up, check the back, make sure the back is completely empty
But I'm not gonna do that. I mean just making one or two won't hurt
but I'm still not going to do it anyway
What I want to do is just make a pair on every single one
Just to completely avoid any chance of falling into that parity error
So now I've got my pair on the top of the three
This is the pair, top, middle, bottom
Look to the back
The back does have a pair on it
However, what I said
These are the top two
Look to the back
The pair is on the bottom two, top two are not a matching pair
So I can still use this back
Watch, bring them to the top
Turn them to the front, so now I've brought this back round
When I turn this face back down
Bringing what was the back to here
The pair is on the bottom. I made my pair on the top. So when I repair my centers..
We split the pair that don't match
And again we find another middle piece without a pair
This time it's green and yellow
I've already got one in position here
Except they don't match
So I've got green and yellow, green and yellow
Twist the cube to bring them together
Check the back, make sure the bottom two are not a pair
They are, so we can't use this back face
So turn the back
Check the back again
This time these bottom two are not a pair so we can use these two
Turn them to the top
Bring them to the front
Turn this face back down, bringing a mixed pair down
And we can repair our centers
I'm going to use green and orange now, look for green and orange
Green and orange, green and orange
Twist the cube to bring them together
The pair is on the bottom
Look to the back
The bottom two are a pair, that's no good
Turn the top so we change the back face
Look on the back again
The bottom two, the bottom two are not a pair
The top two are but that doesn't matter
We're only concern with the bottom two
So remember, bottom two
Turn them up
Turn them to the front, so now they're safe on the front
Turn this face back round so we can repair these centers
This is the back that we brought forward
The pair is on the top so when we repair the centers, the bottom two
doesn't matter that we split them
So choose another colour, this middle piece already has a pair so forget that one
This has a pair, this has a pair
We can use this one, orange and blue
So look for orange and blue
I've got one here orange blue, orange blue
Bring them together as before this time the pair is on the bottom again
Look to the back
We've got a matching pair on the bottom so that's no good
Turn the cube
Matching pair on the bottom, no good
Change the top face again
This pair's no good
And the last one, this time we can use this back face
The bottom two are not a pair
Turn it up
Turn the top, bringing these to the front
Turn it down. The pair is on the top two
You can repair the centers
And we only split these two which didn't match anyway
Okay, look for another middle piece that doesn't have a pair
This one does, this one does, this one does, this one does
Look on the top
Paired, paired, paired, paired
Look on the bottom
This one doesn't
So, blue and white
I can use this one here, blue white
And they're already lined..
.. incorrectly
Blue white, blue white
Bring them together
The pair is on the bottom of the three
Check the back, the pair on the bottom here are not a matching pair
So we can use that back, that's no problem
Turn them to the top
Bring the pair to the front
Turn this face back down
And repair the centers
I've got red and yellow here which is not paired up yet
Red and yellow, red and yellow
Split the cube to pair them
This time they're on the top of the three
Look to the back
The top two is a pair
Bring them round
This top two is not a matching pair, so I can use this back
Turn them to the top
Bring them to the front
So we can turn this back down
Bringing this pair down, but it's on the bottom
Pair on the top is not matching so when we repair our centers
Look for another middle piece
I've got green and red here
Green and red
Bring them together
Look for the top two
Turn them up
Bring it round
And we can repair the centers
So now that happened to line up with three
Again, we're only going for pairs but it doesn't matter
One or two rows of three won't hurt
But we want to make sure we've got a pair on every single one before we start making them into threes
So this is a pair, pair, pair, pair
This one's three'd up by chance as well, but think of it as a pair
Paired, paired, paired, paired
Paired, paired, paired, paired
So now every single edge has at least one matching piece, every edge has a pair
So now just doing that simple process, it's impossible for us to run into the parity error
Where this one is the opposite way around as this one
Because we've already lined them up
Such a simple way of avoiding such a complicated algorithm
So now we've made a pair on every single edge
The next step is to start turning all these pairs into threes
And it's exactly the same process as just making pairs
Now what we're doing, we're just making another pair basically
We've got a pair here
So we want to make a pair here
So look for blue and white
Look for the sole blue and white
Here it is
So we've got blue and white
Now as before, we bring them together
This time our pair is on the top two
Just forget these now (bottom two)
Our pair that we're making is the top two
So when we look at the back
We need to make sure the two on the top are not a matching pair
Because the back will always have a pair on them
So I need to make sure the pair is not where we're going to make a new pair
This new pair is on the top of the two
So when we repair our centers they will get split
So we need the top two to not be matching
So now if we turn this new three up
Bring the back round
So we can turn this face back down
And that has brought this what was on the back down
Then when we repair our centers we don't separate our pair
We just separate the ones that don't match
And just by chance, this one has also lined up and made us another row of three
Sometimes that happens
It's a nice bonus when it happens now because it's just bringing the process forwards faster
You can get into what is called advanced edge pairing where you deliberately set it up
so this will bring around to make a three
But we're not doing any advanced edge pairing
Just keeping it nice and simple doing one at a time
So look for another colour
Green and yellow
Look for the sole green and yellow
Green and yellow, green and yellow
So I'll bring them together like this
Again the pair is the top two, I'm pairing the top two so I'll look to the back
I've got a three so that's no good
The top two is already a matching pair so that's no good
The next one is a three
Bring the final one around
The top two are not a matching pair so I can use this back face
Remember, it's the top two
Turn them to the top
Bring them to the front
Turn this back down
This was the back face
I can repair our centers and we don't break this pair
I will choose green and white now, look for the sole green and white
Green white, green white
Bring them together, our pair is the top two again
So Iook for the back
Top two, can't use that one
I can already see I can't use that one, it's a three
Nor that one
And I can't use this one either
So what do we do?
Well we can just turn the cube over and now we've got all these to check
However, because we've just turned the cube over
The pair that we're now matching is now on the bottom
Because we've turned it over, before these was on the top..
Turn it over, it's on the bottom
So when we look on the back we need the bottom two that don't match
So check the back
These two don't match so we can use this back
Turn them to the top, bring them to the front
Turn them down, and then we repair our centers
Just by chance we've made another one. It's always nice when that happens
So find another pair that's not yet matched
Red and white here, find the sole red and white
It's up here
Okay, so this is the pair that we're matching, it's the top two
We can't use this back, can't use this one
These two here are the top two so we can't use this one
And this one's also a three
So again, turn it over
This time, the pair has now gone to the bottom
Can't use this one, can't use this one, can't use this one because it's a three
And we can't use this one either
So we don't have any space in the top or bottom, so what can we do?
Separate them again, and here they are
Keep these to the front
And I'm just going to swap these back two over
If I swap these two over, look
I've got one on the bottom, one on the top that don't match
If I swap these over it will reverse the way they are
Bring them back together
Our pair is on the bottom that we're matching
Look to the back
And now we've got space
Bring it up
Bring it down
Turn it back so we can repair our centers
And voila!
Now.. let's choose red and green, find the sole red and green
Red green, red green, bring them together
The pair is on the top so we need to look on the top
This top's completely full so I will turn it over
This time the pair is now on the bottom
So look to the back
We've got one here
The pair on the bottom don't match so I can use that one
Turn it up, bring them to the front
Turn it down, correct our centers
And that's fine
Now we've just got one, two, three left
So yellow and blue, where's the yellow and blue?
Here it is
It's already in the right place
I'll put this one up here so it's on the top because that's our last remaining one
Join this last pair up
This pair up
It's on the bottom two
The bottom two here don't match
Bring them to the top, bring them to the front
Turn this face round
And now our last pair
Bring them together, and the last two match up
Doing it this way you will always avoid the algorithm or the parity error where they are flip-flopped
And sometimes you will also fall into this position where you solve every single edge without any parities at all
Now, sometimes you will land into one parity
Where unlike this time where we had three edges left to complete
We had two edges on the front and then the final one is on the top that you bring round
and then all three then match up
Well you can get stuck in a parity error if you find you've only got two edges left to complete
Sometimes that happens
But if you've only got two edges left to complete you have to have them both on the front
so you can bring them together
But then you've never got an empty one or an edge with an unmatched pair on the top to bring down
So every single time you're bringing an edge down from the top with a three in it
Which will then split apart
So you'll always be stuck with two mismatched edges
So this is a parity error and it's quite common and I'll show you how to get around this in the next video
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