How to Solve a Rubiks Cube Blue Corners

Introduction

This method uses very few sequences that you need to memorize in order to solve the cube. Although there are quite a few sequences provided in this solution, most of them are intuitive steps, which once you understand you will never forget. But just like in any other game, you will need to study different methods in order to find your own solving strategy. Even though you might find our corners-first solution pretty straightforward, it will take a lot of practice before you fully master the method.

The method is split to two main steps:

• Solve all eight corners of the cube
• Solve all twelve edges (and centers) while keeping the corners solved

You might have met other solution method, particularly the most common vanilla "layer by layer" method. This method is an alternative with many advantages. In my opinion (based on experience):

• Smaller amount of unintuitive sequences (nowadays often computer-generated)
• Generally shorter sequences
• Higher "symmetry" of solution (you solve cube evenly)
• You do not break what you solved in previous steps as much (easier recovery from mistakes)
• It is quite efficient with respect to its simplicity
• You can achieve very good times just by practice using the very basic method.
• You can scale up the method incrementally to gain speed and efficiency

Of course, every single brain works in a bit different way, so what may be an advantage for one may be a disadvantage for others. You can just try and see for yourself.

For an introduction to the notation used in this page, go to the cube concepts page.

Solving Corners

Solve Four Bottom Corners

We will start by solving four corners of the cube that share one color (in this case we will select white color). You may try to complete this step on your own and look at the provided sequences only if stuck and frustrated for some time. This step can be solved intuitively if you invest some of your time.

Select one corner with white sticker and turn the whole cube so the white sticker of this corner is facing down. You have solved one of 4 corners this way. Now look for other corners with white sticker and put them to the bottom layer using the right one of the following sequences. Solve the corners one by one. When searching for the next corner to solve, you may freely turn the top layer to put the corners into the position in which you can apply the sequence.

Pay attention to align colors of the corners on sides, since if they do not match as well, the corners are not in correct places. The orange and green colors are just example, there can be other color combinations (like blue-red, green-red, ...) in the pictures instead, just the white sticker should be really white.

cubie in the top layer, bottom sticker on the front side

cubie in the top layer, bottom sticker on the right side

If you do not see any situation being similar to one of the first two above (remember that you can freely turn top layer to position the corner to the top-right-front position), the corners are in positions that are more difficult to solve. The following sequences will help you to transform such positions into the ones you should be familiar with already.

bottom sticker on the top side

cubie in the bottom layer, bottom sticker on the front side

cubie in the bottom layer, bottom sticker on the right side

One possible way to remember the last two sequences is "bring white sticker to the top, put it back (inside layer you just turned), reverse the first step".

If you have no idea, what is going on when using these sequences, just go really slow and watch what is happening with the solved corners and the one being solved after each turn.

Place Four Top Corners

To solve the four top corners you will need to temporarily destroy the 4 bottom corners. The question is: How to destroy and restore the bottom corners so as the top corners become solved? The simplest idea is to remove one bottom corner from its position (using one of the sequences given earlier) and solve it in a different way. Let us look at an example showing the removing and restoring of the front-right-bottom corner:

If you look at the result you may notice that the top corners changed. Two corners are twisted (orange-blue-yellow and red-blue-yellow) and two are swapped (top-right ones). If we select carefully how to turn the whole cube before applying this corner sequence to affect the right corners, we can solve the top corners just by this one sequence! In this step, we will only position the corners to their correct positions while ignoring the way how they are twisted. Thus our task is quite simple: apply the corner sequence (possibly more times) to place the corners to their correct positions (use the colors of side stickers of bottom corners to find the right ones).

As you can notice the corner sequence swaps the top-right-front and top-right-back corners. You just need to turn the top-layer and/or the whole cube (keeping top layer facing up) to a position where swapping these two top-right corners will place at least one corner to a correct position. You can always get one of the following cases when turning the top layer to place the corners:

• All corners are in their positions (althought probably twisted) - this step is finished.
• If two adjacent corners can be correctly positioned by turning the top face then only one swap of the other two corners is necessary (make sure that you turn the cube so that these two corners are in top-right positions when applying the sequence).
• If two (diagonally) opposite corners can be correctly positioned by turning the top face then perform a swap of any two top corners and you will obtain the previous situation.

Twist Four Top Corners

Now we are able to position the top corners using one (quite simple) corner sequence that is explained in the previous text, thus there is no magic here up to this point. Let us try to follow this way even for twisting the corners. We can twist (two) corners using the previous corner sequence, however, it also moves corners which is not good for this step. (Just reminding you that in this step, we want to twist corners and NOT move them, because they are already positioned in` the previous step.) The idea behind the corner sequence was to do some change and redo it in a different way, so the other parts of the cube became changed while everything solved before remains solved. Let us try the same idea in this step using our corner sequence: swap two corners using the corner sequence and swap them back from a different angle using the same corner sequence. If we can do so, the corners will be in their correct positions (swap + swap back = nothing), but will be somehow twisted. Let us try that, but before that I must say that swapping two corners back from a different angle requires left | right mirroring the corner sequence, which is shown below:

Now you can try the presented idea of doing and redoing (in a different way) the corner swap to twist top corners:

You can see that this new twist sequence leaves all corners in their original positions and twists only two corners: the top-left-front corner is twisted clockwise and the top-left-back corner counter-clockwise. It is not difficult to twist all top corners in any orientation using this twist sequence. After performing consequent multiple application of the twist sequence to the corners, as soon as three corners become oriented correctly, the remaining corner has no chance to be twisted incorrectly (if you do not believe me, try it).

Examples

The following examples will show you what angle to choose for the twist sequence. After one application the orientation of top corners changes and you will get another that is also shown bellow. You will not get into an infinite cycle when followed correctly - I promise.

two twisted, facing oposite sides - apply from this angle

two twisted, facing the same side - apply from this angle

two twisted, facing adjacent sides - apply from this angle

three twisted clock-wise - apply from this angle

three twisted counter clock-wise - apply from this angle

four twisted, facing opposite sides - apply from this angle

four twisted, facing three sides - apply from this angle

This step can look to be the most difficult at first, but it will become easy after some practicing. (This step may be quite long sometimes and you can do it much more efficiently - how to do so can be found on these pages in descriptions of other methods e.g. in Waterman method.)

Solving Edges

Solve Three Ledges

To solve the Ledges (which stands here for left-side edges - those with white stickers in the pictures) you use the following simple sequences.

Solve Four Redges

Redges are right-side edges, which have yellow stickers in the pictures.

Solve Last Ledge

Flip Midges

The edges in the ring needs to be flipped in most cases before you can proceed to the following step of positioning them. How shold you know which ones need to be flipped? There is a simple rule to spot the incorrectly oriented edges: Look at two colors - color of an edge sticker (choose either one of the two) and color of the center adjacent to the chosen edge sticker. If the colors are the same or oposite (red + orange or blue + green) the edge is just fine. It is flipped otherwise. There may be only none, two, or four of them.

This sequence is so symmetrical and easy to remember that it is hard to forget after you learn it (I have read long time ago that Rubik himself found this sequence, not sure if it is true or not).

Place Midges

three midges in forward cycle

three midges in backward cycle

two and two midges diagonally swapped

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Source: https://rubikscube.info/beginner.php