Rubik's Cube | Lookahead | Byron Erwin | Skillshare

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Rubik's Cube | Lookahead

teacher avatar Byron Erwin, Efficiency Is Key

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

Watch this class and thousands more

Get unlimited access to every class
Taught by industry leaders & working professionals
Topics include illustration, design, photography, and more

Lessons in This Class

8 Lessons (19m)
    • 1. Introduction

    • 2. Basics of Lookahead

    • 3. The Process of Inspection

    • 4. Putting it in Practice

    • 5. The Slow Down

    • 6. My Training Trick

    • 7. Final Thoughts

    • 8. Promo after improve lookahead edited

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About This Class

         Welcome to my course on lookahead. In this course I will cover the explanation and application of lookahead; one of the biggest factors in having low solve times. Prerequisites for this course is the ability to solve the 3x3 Rubik's cube using F2L. A decent F2L knowledge base is recommended. Following this advice as well as the training program I suggest should help you out in due time. 

       As promised, links to everything I use and recommend in this course is as follows: 

Speedcube Professional Timer:

Qiyi FBPB Speedcube Mat Small: Out of Stock
Qiyi FBPB Speedcube Mat Large: Out of Stock

Gan 356XS Cube:

Valk 3 Cube:

Qiyi Sail Cube (budget friendly):

Thunderclap Cube (fair price):

Thunderclap V2 Cube (upgraded cube):

Magnetic Square 1:

Magnetic Skewb:

4x4 Cube:

Mirror Cube:


Megaminx I recommend:

Cube is lubed with:

Gan Lube:

In case you are interested in any production equipment I used to create this course, follow the links below:

My Lighting:
My amazing white desk:
The microphone I use:
Microphone extension cable:
My camera tripod/boom:
The microphone boom I use:
The camera/boom 90 degree adapter:
The camera that I use and I LOVE:
Zecti Camera Slider:

Quick Release Mount:

Motorized Slider Dolly:

Meet Your Teacher

Teacher Profile Image

Byron Erwin

Efficiency Is Key


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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1. Introduction: welcome my course on how to improve your look ahead. My name is Byron. I've been a competitive speed keeper for about the last 11 years or so. And within that time, I've taught about well over 300 people at this point, not just in this platform, but also in person as well. So this course is going to be directed at those that are interested in learning how to get there. Look ahead faster or if you have no look ahead whatsoever and you don't even know what look ahead is in this video, maybe for you. This is for people that already know how to use after. Well, you can already look at an actual case. You already know how to execute it. So if you are looking to bring your times down faster, maybe for competition or just to beat your personal best, this video is probably for you. So with that being said, let's get into it 2. Basics of Lookahead: All right, so to get started, what I want to explain to you guys is exactly what is Look ahead. And what are the requirements that you have to me in order for you to maybe be able to effectively use it. So look ahead of specifically talking about the 1st 2 layers of the cube. So here have two slots that are empty, and I have two slots that are solved, if you don't know after. Well, I do have a video that shows you exactly how it will, how it all works. And I'll be posting that here. And you guys go ahead and take a look at that course. If you're unfamiliar with after will completely so after. Well, if you are familiar with, we have ah, pair here. As you solve this pair, you are tracking the next pair. So you're solving this and letting your muscle memory handle that while you are tracking the next piece is So, for instance, here I will insert this back here, and I'm gonna also be tracking this edge in this corner to set me up for an insert so I don't really have to pause. I know exactly don't gonna do next. Now, that's a simple way to go about it. There is basically a chain that you have to follow. So as you solve one pair, you already looking for the next one. And as you saw the next pair, you're looking for the next one and you move on and you move on. Soas faras the requirements for you to be able to use this effectively for this course to actually benefit you, I would say the best thing you're really looking for is if I were to show you any f to l case, for instance, this one right here and you're able to close your eyes and execute that case effectively. That is kind of where you need to be. Almost any actual case that you see, you can close your eyes and you can solve it. As long as you can do that, your muscle memory can pretty much take over and then you'll be able to start looking at other pieces. Since you're not worrying about the piece that you're already solving or the case you're already handling, so that's gonna be the basis of the requirements. And exactly what Look ahead is, and this is why people that solve really fast you see them. Sometimes they hardly ever pause, and that's because they're always looking ahead. They're always looking for the next step, and that's what's gonna help you become a faster soldier. 3. The Process of Inspection: So the first thing you're gonna want to be looking for when you are trying to learn how to do look ahead, as you need to be able to establish your first pair during your 15 seconds of inspection. Assuming that you're using, thank you for speed solving and competitions. Typically, when you spot when you solve in competitions, you have 15 seconds to inspect the cube from the first moment you see it when you're finally doing the first turn. So here I have a random scramble. I didn't have any of this set up, so we're going to solving the white. I was gonna be using this as an example. So, for instance, we have this one. It's already connected, so I know I can easily just move this over. We have this one's connected now. You always want to save the easy ones for last. Those will typically be in a pretty easy spot at the end of the other, basically the end of your cross so you can kind of leave that seeing how I have to move this over anyway, I could go here and here, but let's take a look at the rest of the cross first. So I noticed Have a blue here. And if I were to bring this over and this down, this would be in a bad position. So what I can do is ignore the easy one. And I'm gonna start by bringing this one down first. And then when I turn it, I'm gonna get to at the same time. So that's kind of what we're going for. Next one I'm going to see is this one down here which after I bring this one down, I could just do an F to bring this up and then I could bring that down after I do my DIY prime. So now I have basically everything planned out. So I know this piece is gonna be up here and then I can end up just doing my simple movement like that in order to get that handled. So we have a whole cross planned out. Now we have to start working on our first pair, and the one I notice is this pair is already kind of together. So I would imagine those moves I did. We're gonna be doing a Let's see, Here are prime F de Prime and then we're going to move the peace from here to there. So during those movements, the only accessory hard prime f d prime L. So then this whole pair right here is gonna move up to here, and then when I insert the greenback here, it's not going to move that pair. So I know this parrot here will be my first pair, and I know it's gonna go right here, and I can basically set myself up for that. So let's just kind of go through the motions of exactly how that would look. So the movements we had our prime tow line up the blue, and then we're going to do our F We're gonna do the D prime line, that one up. We have our green up here, as expected. Knock that out. And we have our first parent here as we expected. And there you go. So that is basically how you're going to start getting faster solves if you can plan not only your cross, but also your first pair during inspection that's gonna help you out a lot. And then, since you already have your first pair of planned out, you can either see the case and let your hands handle it. And as your hands handle it, see the next piece, the next pair that you want to solve or you can plan the entire thing out and moves. Memorize it all. And then once that timer starts, you can already be looking for that next pair. So this is gonna help you out a lot. I can't always do it. That's just me. I'm not really at that level. I can do it maybe half the time. But the times I do my time is definitely significantly reduced. So this is definitely something that's gonna take some practice. Just work hard at it and try to make it a point every time. Even if you can't do it in 15 seconds, it's better for you to do it right then for you to do it at all. So just try it regardless of your time. 4. Putting it in Practice: So I have a set up going on right now where we have the cross taking care of. And I'm gonna walk through some F to all cases and exactly how you would use. Look ahead. Now, keep in mind. At any time that you're solving a pair, you should be able to see three sides at once. If you can see all three, then you can kind of eliminate that. This thing my this area right here might house an edge. If you don't see a color anywhere here and I'll show I'll explain that in a moment. So first Parent will be going with is gonna be this one right here and his pairing edges right over here. This is a simple three move insert right into this slot. And as I do that I see this corner and I can already tell this edges the pair. So I'm tracking these two pieces as I solve this one. Now, even though I was tracking this right here, I see this one right here and already know its edges here. So, as I saw this one, I'm gonna be tracking this one, and I can see this pair set up, so I don't have any information really to work with at the moment. I don't really see anything. So that's telling me that the one I'm probably going to be working with is probably going to be back here. So as I saw this one, I'm gonna immediately look and glance over here and I'm going. Teoh, bring this piece up and I got my pair and insert that one. So as you solve one work and solve the other So I have another example here, set up. First thing I notice is I have a pair that's already taken care of here, and it goes in here. Next thing I see, since I already know this is gonna be a simple three move insert. I noticed this corner right here, and I'm looking right in this area for any information that may be valuable to me. The colors here we have is a blue and orange, but I noticed it's not here. It's not there, not there, not there. It's not this one for sure. So it's probably this one, or it's gonna be back here simply. Look, now you know it's this one. It has to be because you've eliminated all the other variables because nothing is even that color. So once you answered this, you're gonna track this corner and you know that this corner is gonna end up going over here, so we're gonna insert it, and then we're gonna come over right over the corner, and now we're gonna set it up for answers. So as you're inserting, this one belongs back here. You're looking for a candidate for another corner. I'm looking at this corner, and I'm looking for the candidate for that piece. My suspect, my suspicion is gonna be one of these two pieces because I don't see anything on this side . So we're gonna insert this one, and I'm gonna turn to the back, always insert in the back. So that way you have more open slots in front of you, and you have more that you can see. So as we insert this one, I'm tracking these two pieces and they come up into this case and this one is an algorithm . Now, depending on the algorithms that you use, it may be easy, or it may be difficult for you to track pieces as you solve. So the next case I'm suspecting is gonna be these two because I don't see any white anywhere. So I'm thinking these air there gonna be that this is gonna be the next case, and it is. So we're gonna insert this one, and there you go. So always look into the next pair that you're going to work on. Never pay attention to the one you're currently working on. Always be looking around in tracking. 5. The Slow Down: So the next tape I have for you is you just need to slow down and when I mean, my slowdown is not necessarily solve slowly. What I mean is, you just want to go your normal speed, just tone it back a little bit. The reason behind this is if you are forcing yourself to never stop moving, you're forcing yourself to look ahead. This is a good way of training, as Faras getting some practice would look ahead. So, for instance, with this solved, I'm gonna be solving these two, and I'm gonna be going to stop periodically and show you the next pair that I'm tracking that I'm gonna be showing you. So, first off, these two are the ones I'm going to be going for, but I'm gonna be solving these two next. So I'm tracking these two as I saw these two. So you just want to make sure you don't stop. I'm gonna be working on this one next. So the whole point is to just not stop. You don't want to. You just view of useless movements. Either you want to try and cut down on those every single movement you make you want it to be deliberate. And you wanted to be intentional towards the goal of solving the cube. If you just start throwing moves away like this or you threes, for whatever reason, then of course, that's not really gonna be beneficial. You're trying to slow down enough to where it's a challenge for you to where you are forced to look ahead to the next one. As you practice this skill, you're going to progressively get faster, and you're going to start looking ahead at your normal speed Eventually. Now, turns per second is cool, but if you return, if you're turning way too fast, you can't see the pieces when they're being tracked. This is another tip as to why using algorithms for your actual cases are not always the best, because you may not know how those pieces move around the cube. So if you may have to modify some actual algorithms that you have, or at least be very familiar with, how they move the other pieces of the Cube, not just the one that you're currently solving, so keep that in mind. This is a good way to practice, and this will help you out a lot in the long run, but you have to make sure you have a good foundation of good F 12 algorithms as well as being able to just simply close your eyes and solve the pair without looking at it. 6. My Training Trick: so the next trick I want to cover with you guys is known as the Metro known trick. If you're unfamiliar with what a Metrodome is, it's basically a little device that basically you can set. How many times it's going to make a tick sound or a click sound every minute. It could be half, you know, have one click every second. It could be two clicks every 2nd 4 klicks a second. Or you know it can be kind of like that. So kind of like this. So I have a set at 100 beats per minute. So when I selected this, it means in one minute it's gonna have 100 of these clicks so you could get an analog one. You could get a digital one that can download off the APP store, but basically the whole point of this trick is every time you hear that click or that beat , you want to be making a movement that's deliberate towards you, solving the cube and trying eliminate any wasteful moves. You know it's first start off trying to make sure that you can look ahead, and this is gonna force you to do that because before that next beat comes, you need to know what your next move will be, so it's forcing you to look ahead. It's making you do that. And this is a really good training technique for a lot of people that are starting out or maybe halfway through. And they feel like they could improve their look ahead. I would say maybe you want to start off somewhere in the neighborhood of 45 to 50 beats per minute If you're still kind of wishy washy with look ahead or after, well, you're still kind of working on cases and stuff probably start around there today for this example. I'm gonna be doing 100 beats per minute. I'm gonna show you guys exactly what it's supposed to look like. So that way you can practice this yourself. So I have the cross done. I'm gonna start working on the after. Well, first case is gonna be this one, and it's gonna be this edge back here, so let's get started. - So , as you can see with that example about every beat, you want to be making a movement. Now it's up to you. If you want to make If you have to do it, you two, you can make that one be or you could make it to beats. Whatever helps you out to give you more time if you want. Or you can challenge yourself a little bit more and make a single beat that or if you're gonna be doing double movement of any side, just consider that one beat. This is a pretty helpful tool when it comes to learning how to look ahead on Lee because it forces you to do it versus you trying to rely on yourself not getting distracted. So try it out. It may be beneficial to you. And there's a ton of free app on the APP store on, I would say IOS as well as android. So that way you can practice this technique and hopefully you guys can see some improvements out of it. 7. Final Thoughts: as a final tidbit. I would like to let you guys know, use everything that you've learned in this course. And if you apply it all, you know, of course, work. Work on one thing at a time, maybe planning out your entire cross. Maybe a little daunting for some people. So maybe just start working on solving no two pieces in your inspection time, then eventually move onto doing three pieces, then move on to doing all four pieces. Maybe even after that, if tracking both, you know the whole FC. Well, pair with your cross is too difficult. Try doing your entire cross with the corner and move on from there. Maybe try it with the corner and the edge and try and get that entire things. Taking care of an inspection. Either way, it's going to help you out. Just baby steps. You don't have to immediately jumped to this level. You can definitely work your way there. So if you apply everything I told you in this, you're definitely going to be on your route to solving with the pros. This is exactly what the pros do as far as what they're doing when it comes to them solving in seven seconds, five seconds. You know, just some ridiculous times. Look ahead is the bread and butter of all of those solved times. So if your look ahead is good, your finger tricks are good. You're turned for second or good. You're pretty much golden, so definitely keep improving. And if you see a video after this video, that means I'll have another course that maybe benefit you. So go ahead and check that out if it's available. And I also like to let you guys know that the Cube that I use, the loops that are inside the mat and everything that I use for my videos to my lighting to my table will all be included in my course description. So you guys can go down there, check it out and pick some of the stuff up for yourself in case you're interested. But with that being said, it's been a pleasure, and I'll see you guys in the next course 8. Promo after improve lookahead edited: If you guys are seeing this video, that means you guys have completed the course. I really hope that the tips I gave you are gonna be able to help you out. And I do want to let you guys know that I have a new course that's already uploaded, and it's gonna be taking a little bit of a departure. We're gonna be covering the pyramid things. This is a pyramid shaped cube, and it moves in some interesting ways. This is a lot easier to solve than you may think, and it is a ton of fund. So go ahead and take a look at the courses that I offer and this course will be available. Actually, post the thumbnail for it for you right here. And I'll see you guys in that course.