Hey guys and welcome back to my channel .
And in today's video , we are going to be completing our four by four Rubik's cube last layer .
So let's start .
So first step , we have to get the yellow cross over here .
You can see I have got it but well , you you might think that you can do it .
But the problem over here is the Phobe for Rubik's cube has two more cases .
Well , and what two more cases as in there are three cases which you have from the three by three first is our , well , you know the L shape case , the line case and this case .
So the L shape case looks something like this , then the line case looks like this the same thing over here .
But instead for one layer , one layer , it's these two layers .
So this is another layer and we have another case .
But in this cube , we have two more cases in where we just step one edge and we have three edges .
So these are the two cases which are , you know in this .
So if you guys don't know how to well get the cross , if you have the cases in the three by three , then I'll tell you .
But if you do sure to give it a try .
So let's start with a case one .
So if you have any of the cases , the LG case , the line case or the plus case , well , I'm going to show you how to do it .
But if you have 11 edge or three edges , wait for just a second .
I've given a timeline in the description , you can directly jump to this single edge case .
So if you have this case , the dot case , we have to do a very famous algorithm which is F are you are praying and you pray and remember when you are solving it like a three by three .
And if you have cases which are like the three by three , you never use the in two layers , you only use the outer lays .
OK .
Now the L shape case now if you have the L shaped case , you want to hold one of the L shape case edge pieces towards you and one at your right .
And then we are going to be performing this algorithm .
Well , in this , we have these three less , we want to take it as one and then we'll have to do the right algorithm .
And then the three layers which we took over here will bring it back .
So you can see the cross will be formed .
Now , what if you have a line case ?
So let me quickly get it .
OK .
Just a second .
Yes .
So here's the line case .
Now , if you have the line case , you wanna hold one of the line we edge at your left and one at your right .
And then we'll do our algorithm which is F just the single Frur prime U prime and then F prime .
So over here you can see , I have covered up all of the cases which you get in the three by three Rubiks U .
But now I'll show you the cases which you only get in the four by four and cubes higher than this .
OK .
So this is the first case which you can get only on the four by four , the three edges .
But if you have the one , here's the magic , if you do , if you , if you can just do F the algorithm which we used before .
Um the Frur prime U prime F prime algorithm , you can switch to the next case .
So if you have the single edge , keep it in any orientation and uh I'll say um I also just keep it on your left and then we'll do F rur prime U prime F prime .
And over here you can see the T edge case has come .
Now we will be doing an algorithm but for this algorithm , our right layer is gonna be the inner right , not the outer right or these two , just the inner one like this and the left is going to be this inner left , not these two or this one .
So this is gonna be a right and this is gonna be our left and , but U is going to be a normal UF is going to be a normal F .
So it's kind of a bit um It's a kind of a big algorithm , not that big , but just 23 steps .
So let's start first , we'll hold the case something like this one at the back , one at your left , one at your right and the flip one in front of you .
And then we'll do the algorithm R dash , you do and two and dash .
Let's do uh do you too .
Uh You too our time U two F two R two .
And then over here you can see our cross has been done .
So over here we have completed our first step to solve the to making the cross .
Now let's move on to the next step .
OK guys .
So the next step is we have to get these corners on their current places and flip them so that we can get a proper upper .
So how can , how can we check that ?
So let's stop .
We'll take this , which is the yellow , pink and green , pink can be red for you guys .
So yeah , you can also take this one and let's see if this piece or this corner piece has pink or red in it .
So this one surely doesn't .
But this one does .
So now as these put all the pink , we'll get them on the pink san just like this .
Now , you can see if you take our corner piece which is the pink , yellow and green .
It has green in it and the side which is which it's on , it has blue .
So that means this piece has to come over here and this piece has to come over here .
So for doing this , we'll take them on a right layer and then we'll do the right algorithm three times .
But this time our right algorithm is , I mean a right right is going to be , this left is going to be this U is going to be this .
So let's start rur prime , U prime , Rur prime , U prime , Rur prime and U prime .
So over here , you can see our , well , we did the right algorithm three times and this piece came over here .
Now we'll twist the cube like this and then we'll do the left algorithm and dash U dash lul dash U dash lul dash U dash L and U .
So over here , let's get the pink to pink .
So this these two corners are correct .
And now let's take these two , these two are also correct .
But the thing is these two are not matched with the yellow color .
So now we'll take the yellow color on the bottom layer and you can see we'll hold one of the corners on our right bottom and then we'll do the right algorithm till this piece flips over here .
So Rur prime U prime , Rur prime U prime , it's come over here but it's not correct .
So we'll do it again .
Rur prime U prime , Rur prime U prime .
And over here you can see this piece has flipped and it's matching with the yard now onto the next corner piece .
But wait , there's something wrong which we did .
We have to move the down there .
We don't have to move the cube or else it will seriously mess up your cube .
So we'll get our next one on the right bottom and then we'll do that right algorithm again till lip comes flipped .
So our Ur prime U prime or you are prime and U prime and over here you can see our yellow face is done and now let's just match them to this colors .
And you can see we have come to the last step of these four by four .
OK guys .
So for the last layer , I mean , last step , you're going to get some cases and in the first case , you're going to have one side done and the rest , no luck .
So one side done in the one side done also you have two cases .
Well , how should we identify which case we have right now ?
So let's check our two .
Well , we'll keep the down side behind like this .
You can see it's behind and these two sides and this one side , you know , on your left , on your right and your front .
So we'll check the left and the right side .
So let's check the left side .
So the left side has blue and the opposite color of the blue is over here is green , but the edge of the color of the edge is pink .
So that means this is not the case which we want , this is the case which we want .
So green has the opposite of blue and the edge piece which is on the green has blue .
So this means this is the opposite case one and one side done .
So for this , we'll use the algorithm .
And over here , we'll take this as a three by three Rubik's cube , our middle layer is going to be this , our upper layer is going to be this right left .
And so let's do this .
So we do M two .
Now the one which I have the opposite color on will bring it forward .
Now and M dash you do then M now the opposite was on the green .
So the green , the edge which we have on green , we'll bring it to a forward .
And now you can see these two colors are done and then we'll again do M dash two .
And you can see over here A Q case , last part one case is done .
Now there's going to be another case .
So I'll quickly get it for you guys .
So over here , I've got a similar kind of case downside will keep on the back .
But this time , the opposite isn't on our right , it's on our left .
So what we'll do , we'll do the M tube , but this time the opposite one will bring it forward with , but the opposite one is not , is on our left .
So we'll get the left edge on a forward , then M dash you do .
And then the opposite was on our left side , the left side , we have to get it forward and then we'll do an M dash two .
And over here you can see our case one is done .
Now we'll move on to the case two over here .
Now the next case is gonna be none of the sites are done .
So this , this is gonna have two cases .
One is this edge , all are scrambled like this edge can be here .
This edge can be here .
This sketch can be here at everywhere .
And the next second case is gonna be this one .
So over here you can see we have all the opposite on the opposite colors .
So green , it's blue , pink , it's orange , blue , it's green , orange , it's pink .
Now take any color at your front , I'll take this one will and just follow this out and two you M dash two U two mm two , you and M dash two .
See how that case was easy .
Now let's solve its brother .
OK , guys .
So over here is our next case .
So um this , this edge has to come over here and this has to come over here .
So basically like this , you can say them as two lines or something .
But yes , this is a case .
And now we have to do our algorithm which is M two you , I'm dash you too .
M you and un dashed .
Now over here , you can see we have got the old case which is one side done and three knot .
And over here , the opposite is on my right side .
So we'll do the right cell algorithm .
So M dash two , you M dash , you do mu and M dash two .
And over here you can see a cube is done but we have some more cases .
OK .
So this is the last kitchen which you can get , which you can get in the four by 42 weeks .
So and this last edge looks something like this .
So two sides are done but two are not .
So for this , there's a very easy algorithm and the algorithm .
But before starting the algorithm , I would like to say you one thing .
Well , the U , this is a big U capital U and this is the small .
So in this , we have the big U and the small U .
So basically we're going to have like this and the R is going to be like this .
But there is one time in which we have U only a single U and R like a single R and I suggest you follow my moves exactly and slowly but carefully .
So now let's try .
So the algorithm is you two U capital and you small then are , then you too .
I do , you do R two and youtube .
So over here you can see we have got our last case but for this , I um but for this case , we can use our own algorithm which I showed you before or you can use this new algorithm , which is our U prime .
Are you , are you are U prime R prime , U prime ?
RR nothing happened .
So we'll do that algorithm once again .
Are U prime ?
Are you , are you are U prime , our prime U prime and RR and over here you can see our cube is fully done .
And I hope you like this story about the four by four .
If you want to check out the centers and everything , I'm sure you might have checked it out .
But still , I've given the links in the description below and this is advertise that you were signing off .
But before signing off , I'd like to say you one thing if you want to have tutorials about the five by 56 by 67 by seven , click the bell icon and also subscribe and like my videos .
So this is as a cuber signing off .