Solve the Rubik's Cube using the Keyhole Method! | Byron Erwin | Skillshare

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Solve the Rubik's Cube using the Keyhole Method!

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

5 Lessons (18m)
    • 1. Introduction to Keyhole

    • 2. Keyhole Recommendations

    • 3. Special Cases and Inserting Corners

    • 4. X-Cross and F2L Application

    • 5. Multislotting (F2L)

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About This Class

            In this course I will be teaching the very useful Keyhole method! This method can be applied for both beginner solvers as well as world record solvers. You can utilize this method on the 3x3 Rubik's cube as well as 4x4 and up! The best part is, there are no new algorithms to learn! This is a great tool to have in your arsenal when it comes to solving in a more efficient manner and getting your solve times down! I believe that anyone that can confidently solve the 3x3 at any time can benefit from this course. After going through this course, please share this with your friends as I believe that they will benefit from this as well. I'll see you in there!

As promised, here are the links to the puzzles and items I use and recommend in this course:

Speedcube Professional Timer:

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

Gan 356XS Cube (Used in the Course):

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 to Keyhole: welcome like comprehensive course on the keyhole method. My name is Buyer. I have been solving Rubik's Cubes competitively for about 11 years, and within that time I have also taught well over 300 people how to solve various types of twisty puzzles. Now, in this course, we're gonna be going over the keyhole method. If you're unfamiliar with what that is, the keyhole method is basically a sequence of set up moves. I guess you could say that is able to help you out in various situations all the way from beginners method all the way to if being, you know, 10 or sub 10 seconds solvers using F too well or anything else. Keyhole is very, very useful. There's a ton of different applications. I think you guys are really gonna enjoy this. There's no algorithms that you have to learn in this. This is simply just a little change in technique. This is gonna be applicable to anyone who already knows how to solve. And you're looking at getting your times a little bit faster. So with that being said, let's get into it 2. Keyhole Recommendations: real quick before we get started. Just won't let you guys know if you're interested in picking up this speed key, which is my current main, this cubing, Matt, any of the puzzles that have in the background as well as anything else I may recommend. Feel free to take a look in the course description and pick some of the stuff up for yourself. So when this course we're gonna be talking about something known as keyhole keyhole is a very, very helpful move set that can be applied both for beginners as well as very advanced solvers like seven seconds solvers can very easily apply this technique to their solves as well. Now, for you to be able to really get the full potential out of keyhole, my recommendation is, if you're a beginner, you want to be able to solve your cross as well as your corners with the cross side down. As long as you could do that, then keyhole is gonna be very beneficial for you. However, it's not an absolute requirement, but it would make the life a lot easier if you do not know how to solve your corners and or cross on the bottom layer. I will post the thumbnail for Of course, I currently have uploaded that will teach you guys step by step exactly how to do that. I'm gonna be giving you guys examples both for beginners method as well as for f to l solvers and give you guys multiple cases that you can apply this to. And I'll keep in mind. There's no algorithms you really have to worry about. So this is gonna be pretty easy and pretty straightforward. First thing you're gonna want to do, you're gonna get your cross, and then you're gonna want to solve your corners as well. And when you solve your corners, you're going to leave one empty. So we have this taken care of, and we're going to leave one completely empty just like that. Now you're going to locate a edge that you would like to solve. For instance, this one belongs over here, just like beginners method. However, it's gonna be a little bit different from here Now, instead of doing the normal algorithm, that would move this one over like this. You're actually going to place this edge over the color that matches the top color right there. So I'm gonna move this on the orange side because the top color is orange. Now I'm going to take that keyhole, which is what we call this this empty slot, and I'm going to position. That's a below where I want that edge to go. Now you're going to simply insert that edge like this, and then you're going to move that keyhole back to its original position. And as you see, that just solved that whole section. This keyhole will continue to move around for the remaining two slots, and then the final slot you will solve, like, normal. So another example will be this. I have this orange and green that I would like to set over here. So first thing I'm gonna do is I'm gonna move that keyhole below where I want my edge to go . Just like that. Insert my edge. Are you prime our prime And then move the keyhole back. And there you go. Now we're going to do it again for the other one. Now, it's just a ZZ for you to take this one out right here, cause this keyhole is currently empty right here. So we're just gonna open it up like this, and then we're going to move this edge green over green. Move the keyhole over. And now it's on the left hand side that we're going to move this edge over to its just the same as the other side except us. Could be l prime you. L Then move the keyhole back and there you go. So that was the three that we had to do. Now the last one is going to be done just as your normal beginners method, or if you know, actually going to do that as well. So you could install it. You could insert your corner and then insert your edge as well. So this is the first case that I would say is very, very helpful. People that are beginners. Now keep in mind if you're trying to cut your times down, The rule I like to follow is you're always going to get slower before you get faster. When you adopt a new technique or you try and implement something new in your arsenal, it's going to slow your times down a little bit, and as you continue to use it, your times will progressively get faster and faster, and you're eventually going to surpass your personal best. So keep that in mind. New tricks require time to adapt. So knowing that I'm going to show you now a way of using keyhole to get this really difficult case out of the way pretty easily. 3. Special Cases and Inserting Corners: I hope you guys are enjoying the course so far. I just wanted to ask that if you get the opportunity to review my course, you might see a little notification at the top of the screen. Please feel free to go ahead and review my course. Let me know what I'm doing. Good. Let me know what I'm doing. Bad. In that way, I'll be able to give you guys some better quality content in the future. So I have a couple of cases set up here, and what we're gonna do is we're going Teoh complete our second layer are middle layer. Right now, we only seem to have one that's really handled. So what we're going to do is locate an edge that we want to use. For instance, there's this one I want to use. I have blue on top, so I'm gonna set this edge above the blue center and I want this edge to go here. So I'm gonna move keyhole over, and then I'm going to insert that edge and move the keyhole back. That one is taken care of. Now I'm gonna look for another edge to use. I have this one but this is where the original keyhole belongs. You always want this one to be your last one. So because of that, I'm gonna move on to here now. I have no other edges to work with. But I do have this case that no one likes because it's an extra algorithm you have to worry about. And it's just a pain. But the cool thing is, with keyhole keyhole really knocks us out. Makes this very easy case. So a good way to go about this. Take your keyhole and move it over below the edge. You want to flip just like that? Now you're going to do something called Sledgehammer. Sledgehammer is a very, very helpful little move set that will simply flip this edge. And when you move on to F two, well, it's very, very helpful for a lot of F 12 cases. So sledgehammer is like this. You go. Our prime f are f prime. That's all it is. So what that did is that took that edge out and flipped it over here. All you have to do now is insert that edge and then move your keyhole back. Now that just so happened to have solved it, but that's just a side effect of where that corner was at the time. But as you can see, that significantly took care of that case very, very fast will actually give you an example of how fast it could really be done now, another use of keyhole that instead of solving the edge, you can actually solve the corner when solving the crossing corners upside down. And here's what I mean, So I have the cross taking care of here. I have one corner that's already taken care of, and I noticed that I have an edge that's already solved. However, the corner is not. So what? We can do this because that corner is not solved under that salt edge. I can locate that corner as I'm solving my corners. And instead of placing that corner in where it belongs like that kicking that edge out, I can actually move that keyhole over, insert my corner and then move that keyhole back. This is the beauty of keyhole. There is so many different things that you can do with this. It's insane, so let's just continue in. Let's go ahead and solve the rest of this. So I have that one done, and this should be my last one. So let's move on. Just so I could give you guys some more examples of exactly how to utilize keyhole, In case any of you are still confused, I'm gonna be using this edge. I'm gonna place it above the blue because that's the top color. I'm gonna move my keyhole over, and I'm going to insert it and then move the keyhole back. Now, I can use this edge right here. I'm going to fish. Position it right here and now keep the corner is solved. Here. Move the keyhole. Over inserted. Move the keyhole back. And now I'm left with the final one. And it's these two. I have to do so using beginners method, you can insert that corner like normal, and then you can insert this edge like normal. I'm just going to use a shortcut. And that is how you get your 1st 2 layers using keyhole. So there is something else that is known as an ex cross or an extended cross. And I'm gonna give you an example of that in the next video 4. X-Cross and F2L Application: now an extended cross which is also known as an ex cross, is basically when you're able to solve your cross and get your corner and edge pair already already solved at the same time. So that's why they call it a cross. But extended So X cross an example that I could give you would probably be something like this. Now I'm not necessarily going to solve the entire cross. This is just more so to show you the principal how this wouldn't necessarily work. So if you plan out your cross, you know, you can see that I'm so if I'm solving for white, I could move this over to get the green the lineup, This one could come down, right? And then I have this one back here like you go down. So pretty easy so far right now what I want you to pay attention to Is this one right here ? Have you noticed you have an edge across piece that has a solved corner already attached to it and when you place it down will already be in the solve state. However, the edge that goes above it is not there. And this is a good application for keyhole. Typically, this is kind of a dead giveaway. That keyhole may be useful for you. So the way I would typically go about this is I would solve this one right here. I would bring this one down. I would bring this one down. I would notice that we have the edge that belongs there, right here. And because there's nothing here, I could move that over. I could insert it like this, which will also move that edge back there, which is my last edge. And then I could bring it back, allowing me to insert my last cross piece with one of those already done. This is a very helpful application and exactly a good example of what an extended cross could do for you, especially if you are doing after Well, and you're getting really, really, really low times. This can kind of cut your first pair. Look ahead, time down and you can start working on your second pair once you're crosses. Done referring to EFTA. Well, at least so now that we understand how to use those applications, I'm going to show a couple of applications using EFTA. Well, one of the cases that I like to refer to when I teach people keyhole. Is this one right here? So, for instance, I'm dealing with these two pairs. Now, the fastest way that I'm aware of in order to solve this case will require a number of moves. And I'm going to solve this case the way I normally would, Which would be like this. We're gonna count. The moves were gonna go 12 three, 4567 eight. Now, granted, that was completely re grip bliss. And it can be done pretty fast. But that was eight moves versus keyhole one, 23 four, five. So you just cut off three moves and it's This can be done very, very quickly. So there are times that keyhole is not really helpful, and this is one of the situations. If you recognize this case, this is known as sexy. It's called sexy because it's very, very fast in order. Teoh, solve this case. But this is not a situation that you want to use, he holan, because keyhole will simply take too many moves. In order to insert this, it will take too much time versus just doing the regular algorithm. Now, if I were to solve this algorithm, I would also be set up with this case or this edge belongs here and yet again. Keyholes back here because this is an unsolved slot. And just as I showed before using EFTA, well, I'm able to insert this because the corners already solved simply like this. So it doesn't matter if you're beginner. It doesn't matter if you are advanced. This keyhole technique can be very, very useful to people. 5. Multislotting (F2L): so another thing that can come up once in a while something known as multi slotting. This is a very advanced technique. It's something that I don't even really apply. But if you can apply and you can recognize the cases than this could be very, very, very good for you. This is an example of kind of multi slotting, but more so similar to what we talk before, but doing to it once. So here's the example. We have a soft edge here. We have a solved edge here and we have those corresponding corners that belong underneath them right here. So I know that I could use keyhole. I could move this one over and or to insert this corner and then bring it back. But I could also take care of that corner as well. So the way I explain this this has got exactly what I mean. So we follow this slot and this lot this lot will move over and I can insert this corner and then I could just move it over to continue. But I could move this one over as well. Insert that corner, do a D to and that will solve both of them. So it's kind of like I taught earlier. Accepted is doing it two times in one. So it's pretty cool yet again. It's something you really have to I notice you have to have really good look ahead. This is something that would take a lot of time in a lot of practice in order to be able to implement in your solves pretty flawlessly. But now we're gonna talk about a really multi slotting case. So here is a pretty cool, multi slotting case with the multi slotting. That just means you're gonna be doing to keyhole techniques at the same time. And this is what I mean. A Sfar is how this will differ from the last example I just showed you. So here we go. We got a corner that's already solved, and on its neighbor, it has an edge that's already solved. Now this corner belongs down here, and this edge belongs down here. We can actually insert both of these at the exact same time, utilizing keyhole simply we have to pair them up and treat them as the just treat them like they are eight a pair so we can hide this corner like this. Move the edge over and this is considered a solved pair. And what I mean by a salt pair, Clearly it's not solved, but in relationship to where they're going to go because they're going to go into this slot , we're gonna move this keyhole over and notice this corner when we insert this corner and edge, the corner is going to be solved. But the edge was also solved. So if you look at the orientation, if we move the keyhole over the corner will go in and come back, and that will be solved if you look at the orientation of the edge similar to the examples I showed before red is on top of red. So this is a perfect scenario for a multi slotting case where we can knock out both of these at the same time. Of course, this is a fairly specific case, but if you have good look ahead in good recognition, this could be an invaluable, invaluable technique in order to use to get your times down a little bit faster so we can move this over, and then we can insert both of these and then bring it back that will solve this slot and that slot at the same time now yet again. Like I said, I don't technically use multi slotting. That's a very advanced technique. Honestly, I would say that that is beyond me. I am not a big fan of it, only because I think I can get away without it, but it can get better recognition times. But there are people that set records, world records that use this multi slotting technique and it really, really works out well for them. But yet again, everyone's brain is different. So it's really up to you on if this is something you feel like you would want to apply, but if you can apply it, it's a very good technique, so that will be it for this course. I really hope you guys enjoyed it. If you guys are interested in picking up this cube, this Matt or any of these puzzles I have sitting in the back, please feel free to take a look in the course description so you can pick some of the stuff up for yourself and with that being said, I'll see you guys in the next course