It is highly recommended that you learn how to do F2L intuitively so that you can take advantage of empty slots, nonstandard F2L pairings, etc. However, I have provided these "algorithms" anyway. For most of these cases, I have broken the algorithms down into two stages: In the first stage, you will be pairing up the corner and the edge and AUF so that they can be placed. This stage will be shown in red. In the second stage, the pair will be inserted into the slot in which it belongs.
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You want a taste of the high-flying, rock and roll lifestyle of the speedcuber. Well here is where your journey begins. This guide takes you through every step of the CFOP speedcubing method. Learning and practising this method can take you all the way to the top of the game - it is used by a lot of the top speedcubers to set world records, including the current staggeringly low time of 4.
Full CFOP takes some dedication. Are you back? Now that you know the beginner method, you can begin to introduce the concepts in this guide into your solves. Indeed, the whole cross is assembled on the bottom layer instead of the top. This will be awkward the first few times you attempt it, but it is certainly worth practising. Not having to turn the cube over after completing the cross on the top layer saves a lot of time, and it also means that you can be looking for the pieces for the next step whilst completing the cross on the bottom.
At this stage, a lot of people still find it quite difficult to intuitively manipulate the cube. This means that doing the cross on the bottom is difficult, as they have come to rely on algorithms for situations that are suddenly upside-down. Move on to the next sections, but keep starting with the cross on the bottom. I have found that the next step F2L is a huge help for people to understand how to move cubies to where they want them, a skill that they can later use when returning to the cross.
All of that being said, I can give you some situations to hopefully make the process easier. In this example: It should be obvious to you that you can simply do F2 to correctly place the white-blue edge piece on the bottom layer. This works, and is an intuitive way to solve the problem, but the second solution is much simpler. It simply solves each piece relative to each other, and then places them in one go.
So instead of producing the cross by finding each white edge piece and solving them one by one, what you actually want to be doing is solving each piece at the same time in an efficient way. But what is life without a bit of a challenge every now and then. If you are thinking "how the dickens is anyone supposed to do this in 4. World Cube Association Regulation A3a1 states that a competitor has up to 15 seconds of inspection time before attempting a solve, and you would want to be spending this time mentally formulating a complete solution to the cross which you could then execute very quickly at the start of your solve.
Step 2 - F2L The next step is to solve the rest of the first two layers which is what F2L stands for at the same time, to get this: The idea of F2L is to pair each of the four bottom layer corners with the corresponding edge piece and then insert them into the correct place.
Easy peasy. There are, however, a few situations you might find yourself in where this procedure is not quite so obvious. The two sections of the algorithm show the two steps in the same procedure as before - the first bracketed section shows the pairing of the two cubies, and the second section shows the pair being inserted correctly. You simply repeat these steps for each of the four corners, and solve each F2L pair in turn.
The important part of F2L is being able to solve each of the pairs without affecting any of the other previously solved pairs. This idea of finding an empty space on the cube and using it to build a corner-edge pair is crucial to F2L, as of course you want to be able to construct each of the four F2L pairs without disturbing any previously solved ones.
But sometimes it can be advantageous to disturb unsolved spaces by choosing a space to build your corner-edge pair that also assists the creation of the next pair. If you used the second algorithm instead, then the same thing happens to red-blue corner and edge pieces, but now the red-green pieces are much happier and are in a position to be solved much more easily.
You now know the basic ideas of F2L. Have a go on your cube, and see if you can work out how to solve any of the pairs. Rather than relying on a big table of algorithms, F2L is best done intuitively. This is for the same reason as the cross in step 1 - you need to be able to look at the cube and produce an efficient way of solving each F2L pair. However, there is such a list on the algorithms page , where you can see each F2L case and how to solve it.
They are there so you can see an optimal way to solve each case, but try to not rely on them for every single F2L case you encounter. Instead, really try and solve each case intuitively. It takes practise, and the next little section is all about how to be better at F2L. How to be better at F2L F2L can be a little difficult to get your head around. I shall now try to explain some further concepts that you can use to improve your F2L. If you can intuitively solve every F2L situation you come across then jolly well done, but there are a few cases where there is just a better, faster, much less obvious algorithm to solve it.
However, the second algorithm is much faster to perform, as it is essentially the same few moves performed three times. You will also have noticed that the first two brackets are written in red. A trigger is simply a sequence of moves that is easy to perform very quickly, and the Sexy Move trigger comes up a lot. Being able to identify it easily will make algorithms that use it easier to learn, so whenever it is used in this guide it will be highlighted in red.
F2L從新手基礎到四向多方向順手公式動畫教學 by pinpin
From beginner level to pro level, F2L is usually the step with the most room for improvement because it requires recognizing and tracking multiple pieces at once, while having quite a lot of freedom. In other words, you know how F2L works logically. In theory, there are so many unique F2L cases that memorizing them all would be a very slow way to learn it. Once you understand the intuitive concepts from this tutorial, you should practice it until it feels somewhat natural, before moving on.
F2L從新手基礎到四向多方向順手公式動畫教學 by pinpin
Deliberately leaving a slot open can improve efficiency and is a useful technique for improving lookahead. Because no rotations are used, it is not possible to check these pieces directly - this creates a challenge for lookahead. Because edges are already oriented, there are at most four possibilities for any F2L edge. Partially Hidden Corners: If familiar with the colour scheme, then any corner with only two stickers visible can be worked out. The coracle corner lookahead drill can help with this.
Step 2: First two layers - F2L