Cross Tricks | Rubik's Cube | Byron Erwin | Skillshare

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Cross Tricks | Rubik's Cube

teacher avatar Byron Erwin, Efficiency Is Key

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Taught by industry leaders & working professionals
Topics include illustration, design, photography, and more

Lessons in This Class

9 Lessons (16m)
    • 1. Introduction

      0:48
    • 2. Bottom Cross

      2:43
    • 3. Piggybacking

      2:12
    • 4. Opposites

      1:32
    • 5. Neighbors

      1:37
    • 6. Good and Bad Edges

      2:51
    • 7. Flipped Edge Cross Trick

      1:50
    • 8. D and D' Cross Solution

      1:12
    • 9. Closing

      1:04
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About This Class

                I will teach you some tricks and principals I use when I solve the cube in my daily life. These tricks helped me reduce my cross times significantly and I think they will help you out as well! The course is directed towards those that solve using either beginners method, or daisy method. It may also be beneficial to those that are solving the cross in a more advanced way as well! I hope you enjoy this course and I hope to hear from you at the end! I'll see you in there!

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Cube is lubed with:

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My Lighting: https://amzn.to/30HFZVh
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Meet Your Teacher

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Byron Erwin

Efficiency Is Key

Teacher

Hey Everyone. My name is Byron. Getting the opportunity to teach people the joy of the Rubiks Cube all over the world is amazing. It's incredibly addicting and very fun. What I find really enjoyable is teaching people how to solve it then watching them grow into faster and faster cubers. This platform gives me the chance to do just that - but on a larger scale. I'm excited to meet and talk to you guys about this awesome past time. Lets get started. 

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Transcripts

1. Introduction: Welcome to the course on cross tricks. Hi, my name is Byron. I've been solving Rubik's Cubes competitively for over 12 years. And during that time, I've taught well over 300 students how to solve various types of twisty puzzles. This course is gonna be directed towards those that are starting to learn more advanced cross solutions. So if you solve beginners method and solve it similar to this, or if you do solve using the daisy method that looks something like this, I'll be showing you more advanced tricks in order to get a more efficient cross. It's going to be a very distraction free environment. So that way it'll be easier for you to learn. I believe anyone that's learning to get more efficient crosses will benefit from this course. So with that being said, let's get started. I'll see you in there. 2. Bottom Cross: So the first thing I want to go over width, which can be a little bit difficult, but for the most part it just takes a little bit of practice, is if you're solving your cross on top like this and then flipping it over in order to do your corners or your F2 well, or whatever you're doing to solve the first two layers, that is going to be a little waste of time that we can eliminate. So that whole rotation to get it to the bottom, instead of doing that rotation, we should instead be leaving it on the bottom and solving it on the bottom. Let me give you some examples. Now, I'm not going to be showing you guys the most efficient way in order to solve these cross cases. I'm just going to show you some practical examples. So you, I'm talking about. So for instance here if I'm going for the white cross, I have the white on the bottom. And now in order for me to build my cross, if you notice the edge colors line up. So I could immediately bring this down to pair that up. However, I have this red ray here too, that can go in like this. Solve the red, then I can bring this green over. But while I do that, I can position this ready to solve by doing a u-prime. Finish the green. And now the orange is lined up here, bring that down. But while I do that, I could bring the blew over to solve that and that will solve my cross. And I know it sounds complicated, but let me give you one more example. All right, so in this cross solution, I have white on bottom. I could easily solve my green by doing a r prime d, and that will solve the green side. So let's bring that back. Now. I can try to look at what else I could pair at the same time. I could bring this red over here by doing a L prime, F prime. So let's give that a try. So I could do a r prime to get the green ready. I could do a L prime, f prime to get the red ready right next to it. So I'll solve both of these at the same time. But notice that this one is ready to go to. If I do a L, This will be ready to go. So I'll be able to solve all three of those at the same time. And then regarding this one, I could do a little cross trick which I'll show you later. Or you could end up just rotating. Do a d r prime, D prime. But the whole reason for this now is since you solved your cross on bottom to begin with, you don't have to worry about doing that whole rotation. And you'll be able to actually spot your first F20 pair during your cross. So this is something you should definitely adopt if you don't already do it. 3. Piggybacking: When solving your cross on bottom, there's something known as piggybacking. And I don't know if you are familiar with this term or you already apply it, but didn't know what it was called. But piggybacking is simply the act of, instead of solving just one piece, we're going to see if we can solve another piece, or at least get it set up to be solved during that movement just when I solve one piece. For example, this blue right here in blue and white, I could just bring that down and then this will be solved. But how about I do a preliminary and move, for instance, bringing this red piece over onto this blue side. So when I go to solve this blue, the red will also line up. I just piggyback to this red on this blue side. So I can get this setup to be inserted. This will be very beneficial when building your cross. So I just did a random hand scramble and I'll let's just see what kind of piggybacking we can use for this cross solution. So first thing I see is we have this blue that can line up here. So we can immediately align this one up. And then we can actually were set up in the exact same case we were before. I can bring this red over. So at the same time that I solved this blue, I'll line up this read and get that inserted, which is awesome. So now let's take a look at the last two pieces that we have. These two. Let's think of a way. If there is a way to piggyback these. Now, this isn't really a piggyback move, but this does make this a little bit easier to insert. So we had the piece back here originally. And even though you shouldn't be doing a Y2, Let's just say we had it at this angle. You could do a U to get this ready to go down here. And when you insert this orange, you will at the same time make this very easy to insert. So let me back that up. So right here we have this piece. We can go down, insert, flipping that Greenpeace to easily be inserted. And there's a cross. And then you're ready to move on to your first after welfare. 4. Opposites: So the next cross trick I want to go over with you guys is what I refer to as opposites. If you are trying to create your cross and you notice that the first piece, or at least the one that's easy to solve is opposite colors of the one that's currently on. So for instance, blue and green are opposites. I will just have to do a D2 in order to get this blue to line up. We can see if we can apply that same principle to everything else on cube regarding the cross. So for instance, we have this one that's easy to easily inserted here. We could insert it here on the green side if we wanted to. That is that's perfectly acceptable as well. However, we do have this red one that's ready to go. So let's see what we can do regarding that. So we already have this green and blue that are opposite each other. So we can insert this one and then notice that the orange and red are also opposites. So let's use that to our advantage. I'm going to insert this green like this. I can bring this one all the way down. And now we have three cross pieces that are on opposite sides of each other. All you have to do is do a D2 and then bring this red down. So that was a very easy Cross, since simply because we used opposites, I use this very often. And it will make it where you use less finger tricks and you have less key rotations. If you can apply this to yourselves. 5. Neighbors: Similar to opposites, we have something that I like to refer to as neighbors. There's probably a different name for it, but that's just what I always called it. So let's take a look at the cross that we have now. So we have one that's already solved or not solved, but it's already down there. And it is one turn away to the blue. So let's see what else we can find that we can get one turn away from its color. So for instance, let's take a look at this green right here. If we bring this green down, it will also be one turn away from being solved. So let's keep that in mind as well as when we insert the screen, this red will also be one turn away from being solved. So we already had a pretty good solution for this one, just using the neighbor principle. So let's see where this last one ends up. We'll do this and then we'll do an F. And then we could do that, so that individual D. But we could also do another d to do an F and then bring it back. That's something that you want to be able to do is use d and d primes during your cross. It'll make, make the finger tricks a lot better for you. Definitely consider neighbors as well as opposites. And I know I covered these in some detail in a previous video of mine. But I notice I've been getting a lot of requests regarding crosses. So hopefully this will help you out. 6. Good and Bad Edges: So we're gonna go over a concept known as good and bad edges. A good edge is if it takes two or less turns in order to insert one of your cross pieces. So for instance, the screen, and just so you know, this orange is already solved. This green would only take one move in order to insert it into the cross. So this would be considered a good edge. However, this one would take at least three moves in order to insert. So what I could do, and this is what we consider a bad edge. I could insert that green, forget about it. And this blue edges also a good edge and I can just bring that down. But now we have a bad edge leftover. If we don't address this earlier in the cross solution, we're going to be left with kind of a pain of a insert case. So going back a little bit, we can use the name or the piggyback solution I mentioned earlier. We can bring this over, solve it, and bring it down. Doing that movement will convert this bad edge into a good edge. While at the same time solving one, we line up another that will make this a good edge. This is a principle you want to keep in mind with when you're solving your cross. Try and focus on the bad edges and turning them into good ones. Let me show you another example. In this hand scramble, I'm looking at the cross and I can notice this one, which I guess you could say is kind of a bad edge because if it was on the red side, this would be difficult in order for you to place. However, we can turn it into a good edge, as well as this blue one. Because this is also a bad edge. We can use the piggyback scenario in order to flip that into a good edge. We're going to be able to do piggyback as well as neighbors here. So here's what we're gonna do. We're gonna bring this down to make it a good edge, while at the same time piggybacking the blue on it to make both of them go to edges and neighbors to each other. So we would want to be able to place an orange piece here, which is right over here. However, since it's already in a nice position for us to insert, we would have to do some kind of cube rotation or some awkward movement in order to pair that up, we could instead do this. We're going to solve those two we lined up earlier. We're going to move this green over. And then we're going to piggyback this bad edge off of this green to make it a good edge. So pretty, pretty cool cross solution right there. If you, if you really think about it, you know, the finger tricks involved are always another conversation, but we'll get into that. 7. Flipped Edge Cross Trick: Sometimes during your cross, you're going to be left with the last piece that you have is a bad edge in one of the worst positions right down here on the side, which would normally require you to do a key rotation in order to insert. But I'm going to show you a trick where you don't have to do that. It's going to be pretty simple. And this will either work if it's on either side of the puzzle, you just have to mirror the finger tricks. So if it's down here and everything else is solved, we could instead use this algorithm. It's very short algorithm. All we have to do is re grip, do a r prime, little u, r prime, literal u-prime. And that'll flip it. No key rotations required. This solution will also work on the left side. All you have to do is mirror the finger tricks. So we'll do a little u-prime, l, little you. There you go. This is a very versatile solution in the sense that even if the piece is here, you could do a modification of that algorithm. Or if it's back here, same thing applies. Or even what I like about this one. Even if it's all the way up here, you could do the same thing. Use your pointer finger to just kinda modify the algorithm a little bit in, even if it's all the way in the back, all the way over here, all you have to do is do a u and then go into that same modified solution in order to insert that, it's a really, really cool solution and I use it in almost all of my solves. This should help a lot of people. 8. D and D' Cross Solution: Once in a while during your cross, you'll run into this situation. So this edge belongs over here. It's a bad edge, which sucks. But we want to make use of our bottom layer in situations like this to make it easier and make it more efficient. Here's how we're gonna do it. All we have to do is do a d prime that will move this slot here. So after we do that d prime, all we have to do is insert this edge here, like this, and then bring the D back just like that. So very, very easy solution. I see very few people actually utilizing during these situations. You could even use it in a situation similar to this. You could use the solution I mentioned earlier. Like that. Really it's up to you. Or if you feel more comfortable, you could do AD to move that spot over here, Insert and then d-prime back. Either one is acceptable. It just depends on what you feel like. It's really up to you. Whatever is more efficient and more reliable for you to do. 9. Closing: Alright, that's the end of the course. Congratulations for completing it. Hopefully this will be able to give you guys a little bit more information or guarding how to get a slightly faster cross or more efficient, or maybe give you a little bit of a different way of thinking when it comes to solving the cross. So you guys can get faster times. Please don't forget to review the course so that way you guys can let me know what I'm doing good, what I'm doing bad, or even let me know if there's something in particular you guys would like to see. Feel free to take a look at all the extra courses that I offer. I have everything ranging from beginner to expert. So you guys will probably be able to find something that will help you. I'll be posting as often as I can, which right now is about once a week. So if you guys are wanting to know more about the three-by-three or you're just interested in getting faster at the three-by-three, then go ahead and follow me. So that way when I post a new video, you guys will be notified and be one of the first people to see it. And that way it'll hopefully teach you something that will get you a little bit faster and maybe get you a new PB in the process. But it was a blast making this course, I hope you found some value in it, shirtless with your friends, and I'll see you in the next course.