how to solve cube | rubik's cube | step by step | 3 * 3 | part 3

Hi again guys, I’m Cubastic and your watching part 3 of my Rubik’s Cube solving tutorial. In the previous parts you’ve learned how to solve the first two layers, I’m sure you can do that, but if not - you can re watch previous parts anytime and brush up all the algorithms. Our next stage is gonna be solving the yellow cross and we need to do that, keeping everything we’ve done before. 

So we need to make a yellow cross. It is possible that after doing the previous stage the yellow cross will already be solved, in that case you’re lucky and can just skip this stage, but you still need to learn how to make it by yourself. These are some situations you could end up with after finishing the previous stage. 

Look at your Rubik’s cube. If your yellow edges make a single line like that, and it doesn’t matter where the edges are, they even could be solved, but we need to look at our edges only, so look only at these pieces. These corners - don’t matter. So if our edges make a line here, first we keep it horizontal, don’t put it vertical, horizontal only, and here’s what we need to do in order to make a cross. 

Take the cube with the yellow side facing up, keep your line horizontal, turn you front face clockwise. Next thing we do our right algorithm one time. R, U, R’, U’. And now we are putting our front face back to it’s position, so we turn it counterclockwise. 

As you can see, one simple step and the cross is finished on the yellow side. Let’s see more cases. The next case is when the edges don’t make a line, but they make a corner, that is how they are situated. Not in front of one another, but close. I associate it with the clock, which shows9 o clock, and this is what this situation is called, so it’s the exact position we need to hold our cube. 

So it looks like 9 o clock on our watch. To solve this situation we need to do almost the same, but a little bit different. So we take the cube with the yellow side facing up, and with this corner facing left and forward, remember the 9 o clock reference, and turn the front face clockwise, like we did before. And now we also do the right algorithm, but this time we do it two times. 

1, 2, 3, 4, 1, 2, 3, 4.  

And return our front face. Turn it counterclockwise. As you can see - the cross is solved again. One more possible scenario is when except the center there’s no yellow edges on the yellow side. To solve this scenario we need to do the same algorithm, like with the 9 o clock. Let’s go. Front clockwise, right algorithm two times,

1, 2, 3, 4, 1, 2, 3, 4, 

and return the front. Turn it counterclockwise. Now we ended up with the line and we already know how to work with it, so we just do the appropriate algorithm. Turn the cube, so the line is horizontal, turn your front face clockwise, remember - if the line - we do one algorithm, 1, 2, 3, 4,and return the front face. The cross is finished. So, let’s repeat. If we have a line - we do F, one algorithm for right hand and F’. If we have 9 o clock, we do F, two algorithms for right hand, and F’. And if we have the dot - first we do F, 2right algorithms and F’, then we turn the cube so the line is horizontal and do the algorithm for this scenario. F, one right algorithm and F’. 

If the cross was already done on this side, we just skip this step. So the next step which requires special focus. After the yellow cross we need to work with our edges and to put them on their places. 

Let’s see what the correctly solved edges should look like on this stage. So we have the yellow cross and the corner saround it, and if you watch closely at their colors, for example this one - yellow, red, green, this corner is located between yellow, red and green centers. 

It means that the corner is on it’s place. Let’s check one more. Yellow, green, orange is between yellow, green and orange centers. This corner is on it’s place as well. 

The next one. Orange, blue, yellow is between the orange, blue and yellow centers. And the last corner - yellow, blue and red is between yellow, blue and red centers. That is the position our corners should beat. And it is done by the same algorithm you already know really well. 

Let’s take the unsolved corners. With the finished yellow cross we need to find a position for the up face, so at least two corners are on their places. Lets see. Yellow, blue and red is on it’s place, the rest three are not. Their colors do not match. Let’s find another position. Turn the up face and look again. One corner which is orange, blue and yellow sits between the orange, blue and yellow centers, so it’s there, the second corner doesn’t match, the third one doesn’t match and the fourth one matches the centers. So this one and the first one are on their places. 

Let’s look into this scenario when two of our corners are on their places and two other ones aren’t. First take the cube, so the corners which are on their places are near your left hand, these two should be swapped. This is how it’s done. Repeat the right hand algorithm three times, one, two, three, then we turn the cube and do the left hand algorithm three times. 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4. So we did the formula, let’s see what is different. Let’s put at least one corner on it’s place, and if we take a look at all the other ones, all of them are between their centers. 

I repeat, that this algorithm swaps two corner son the right. So here we put the correct corners, and after we do the algorithm, let’s repeat it one more time, one, two, three, turn, and the left hand - one, two, three, then al the sides go to their places after we turn the up side. 

There’s one more scenario. When we have to corners on their places, red, blue, yellow and green, yellow, orange, but they are not on one side, but they are located diagonally, like here. In this case we do the same algorithm, but two times. 

So we start with our right hand, one, two, three, turn the cube, our left hand - one, two, three. As you can see, our corners changed their positions and if we turn the up face, now two of the corners are on the same side. And now you know what to do. We need to swap the corners on the right with the same algorithm. One, two, three, turn the cube, and one, two, three with the left hand. Now all of the corners are on their places. 

So guys, this was the third part of my rubiks cube solving tutorial, don’t forget to like this video and subscribe to my channel, also comment if you managed to do everything from this lesson and move on to the next part. And I repeat, if something was too hard or isn’t working for you, just rewatch the tutorial more careful. And if you already know how to do everything from this tutorial, just go to the next one, I’ll be waiting there. 

Click here for Part 4