Transcript for:
Efficient Seven Simul Rubik's Clock Method

welcome everyone to the long-awaited seven simul tutorial for the Rubik's clock this video will be broken up into segments so if there's a certain one you want to jump to I'll leave timestamps in the description so before I teach you all this method I'll explain what it actually is seven symbol is an advanced and efficient method for solving the clock and if you haven't already done so I'd recommend learning Shirin it's a good way to transition from a method where you flip the clock over to this one so I'll leave a link to Caleb shelter's tutorial for it in the description the name seven final comes from the fact that we can always solve the clock in seven or fewer simultaneous moves so that's what I'm going to teach you how to do I really believe this method is the future of clock it's more efficient than other methods and you don't even have to flip it over during the solve and just to be clear a simultaneous move is when we have at least one pin facing up might be hard to see but it's just this one right here and the other um pretty much there's at least one facing down so we turn dials for both at the same time so for some brief background information on this method it was first discovered by launch XI Zhang in early 2021 now I could be mispronouncing that name so I apologize if that's the case and then in mid 2022 Benjamin Paul discovered it on his own once Benjamin discovered it he ranted about it in the clock solvers discourse server which you can find in the description and after that some people got curious about the method in particular uh Caleb trelford started playing around with it and at Sharon Forks 2022 back in September 2022 he showed me how this method Works ever since I've been working with Benjamin and Caleb to advance this method and it's already paying off using seven simul I got a 2.97 North American record single which is second in the world it's now January 2023 and I didn't intend to wait this long but I got quite busy and couldn't really fit in time to make this tutorial but now that the methods had success I figured what better time to share it than now now there are a lot of interesting things about this method like the math behind it and techniques that can take it to the next level however this video is aimed towards people who want to learn the method without too much difficulty as it's very possible to get really fast with this method even in its most basic form for that reason I'm going to try explaining the method in a simple terms as possible if you eventually want to see more about seven slime well I'll probably make more videos in the future when you're watching this make sure you pause and Rewind it whenever you need to because if you're going to go through it all in one go you're probably not going to understand all of it but now that I've done a lot of talking let's start learning I'll assume you already know how to solve and scramble the clock with the notation people normally use so for this method there are just a few other quick things you need to understand how the pieces are labeled C stands for the center and we have the edges which are just one letter so U for up or for right d for down and L for left and then the corners are two letters each so you are UL DL and Dr also I'm going to represent the side we start memorizing from with lowercase letters so for example lowercase C and the other side is going to have uppercase letters for example uppercase R and by the way whenever we're inspecting we're always going to be doing X2 rotations to switch between the two sides and a quick tip if you're confused at all is that the side we start memorizing from is opposite from the side we start solving from so when we're actually about to start to solve the uppercase side is going to be in front of us now when we actually start to solve there is also going to be notation for the different pin positions we can have so if we have let's say u r and DL that's going to be a forward flash you can kind of see like with the shape of my finger and then the other two ul and Dr that's a backslash if we have lowercase letters for a pin position like let's say lowercase DL that means every pin except for the DL pin will be facing up whereas uppercase of course just means that that's the only pin so this would be uppercase deal okay so follow along with this example scramble that I'm going to do so that I can run you through how the memorization process works by the way you might have noticed I was using pinky for bottom turns during that scramble and while it's pretty hard to get used to if you're used to Turning with your thumb I strongly recommend uh just trying to switch as soon as possible because it'll benefit you in the long run so let's start memorizing from this angle in total you'll have to memorize five letters although I probably recommend memorizing six because it just helps to make things flow better so the way I'm going to teach you how to do it will have six letters to memorize and break it up into three pairs of letters and those pairs of letters are going to be made into words or sounds just like how people solving blind would do it if you have no experience with blinds don't worry I'll show you how to make letter pairs okay so the first thing we look for on the lowercase side C minus D now I'm about to say something very important whenever we have something minus something else it's whatever the thing that the second clock has to do to get to the first clock so when C minus d d is the second clock we're trying to see what this has to do to get to the center clock so if we look at the D clock it's at 10 o'clock right now we look at the C clock it's at eight o'clock so the D clock has to do with negative two to get to 8 o'clock when I memorizing I don't see like what the numbers are for each clock so I'm not like oh this is 10 this is eight I just see how far apart they are from each other so since this has to do one two ticks counterclockwise to get to this facing the same way as this clock that means we have a negative two one thing to note is that negative 2 and 10 are the same thing on clock because the two numbers are 12 off from each other so it's just like doing a full circle so now that we've figured out a number to memorize I'm going to show you how to convert it to a letter pretty much one is a two is B 3 is C and so on like the alphabet so if we went up all the way up to 11 that would be K the 11th letter for 12 o'clock since it's like doing 0 I just like to use the letter O now remember negative 2 is our number and that's equivalent to 10 because negative 2 is 12 away from 10. J is the 10th letter of the alphabet so that's the letter we memorized J the next thing we have to memorize is Dr minus r remember it's what the second thing has to do so R to get to the first thing so this R imagine is doing one two three four five so it's doing five ticks and the counterclockwise direction to get to the point where it's facing the same way as this so since it's counterclockwise it's negative so we have a negative five but we're not quite done yet so don't convert that to a letter we're going to flip this over and now on the uppercase side we're going to do U minus l L is the second thing so it has to do one two three so that it's facing the same way as you so that's that's a three now with the two numbers we just found negative five and three we're just going to add them together so negative five plus three is negative two and now we're ready to convert it to a letter so remember negative two is just like ten and J is the tenth letter so once again we have J so now comes the point where we make a word or a sound because we have two letters and this is the whole idea of letter pairs pretty much we're just making our memorization easier so when I have the two letters J and J I just like to think of the sound jage you can pretty much do whatever works for you like if you have BG you might think of a bag CA you might think of California pretty much just do whatever you think of but just like jage which is what I did it doesn't have to be like a real word for d a for example you could just do the seven to Da that's what I do actually now let's move on we have J just our memorization so far and hopefully you didn't forget that there were two parts to the second letter we memorized if you if you forgot that's okay it's negative five and three and the third letter is actually super easy it's just the opposite of the second part of our second letter so remember we had negative five and three so our second number is three the opposite of that is negative three so now that we have the number negative three we're just going to make it into a letter we add a 12 to make it positive and that would be nine the ninth letter of the alphabet is I so I is the third letter we have so now we're going to flip back over to the lowercase side and memorize our fourth letter it's lowercase D minus lowercase R so R has to do a one two three let's go in counterclockwise so that would be a negative three so that it's facing the same way as the D clock so that's a negative three and once again it's that that becomes nine which is I the ninth letter of the alphabet so we have two eyes and now we're just going to make that into a sound I like to use the word I like eyeball so far the memorization is jage I this next one's a bit long and there are quite a few ways to do it but I'll show you two main ways first will be the way I do it and then just another way that might end up working for you so we're going to flip back over to the other side so this one's going to be uppercase U Bar minus U plus C minus D and then we flip back to the lowercase side plus L minus UL plus r so here's how I would do that we're going to treat u r minus U as its own thing at first because those are the first two clocks we're looking at so u r minus u u is the second thing and well oh it doesn't have to do any movement to be the to be facing the same way as you are because they're already matching so so we have zero as our number in mind so far now we're just going to go one clock at a time so plus C now when we add it's just like doing a move so if the the center clock is here and we do a zero to it it's just going to stay in the same spot so we still think of this as if it's just right here now we're subtracting D so we treat d as the second number in the subtraction operation just like how we've been doing normal subtraction so pretty much what does d need to do to get to here so in this case D needs to do a one two three four five so the number we have in mind is five now we're going to flip this over and add it to the L clock so that means we're doing the move five so that would end up right here just picture it facing this way so now we're subtracting you will we're treating UL as our second number in a subtraction so we're just seeing what does UL need to do to face the same way as this imaginary clock which we imagined remember this to be over here and well if it's facing this way and UL is also facing this way then the difference is zero so that's what the result of the subtraction would be the last thing we do is add it to this R clock but since it's just a zero we don't have to do any moves to this R clock so it stays here so this ends up at one o'clock and we are finally ready to convert this number into a letter a is the first letter of the alphabet so we just have the letter A now I'm just going to show you a different way to memorize that in case you find it easier but if you think you're good with that other one feel free to skip to this time stamp to skip over this part so we can also think about the thing we just did as something broken down into chunks make sure we're starting on the uppercase side so the first chunk would be U minus C plus d and then we would step to the lowercase side our next chunk would be UL minus l and our last one would be Dr minus r so pretty much we're going to add those three things together and then take the opposite so for the first chunk U minus C plus d Let's Do U minus C first remember C is the second thing in this subtraction operation so it has to do a one two three four so that is facing the same way as the u-clock so that's four and now we add it to D adding is just like doing a move so if this were to do a four it would end up right here so since the clock is upside down this is this would actually be 11 o'clock or negative one and there's a quick shortcut we could do for that sometimes let's say if we have C and D matching like this pretty much since it doesn't matter which order we add things in we could do D minus C first because D and C are just facing the same way so D minus C would be zero and then we would just add that to the U clock which means we're not actually doing anything to it so it stays here which is 11 o'clock since the clock is upside down right so it's like right here which is negative one or eleven depending on how you want to look at it back to the scramble we flip for the next Chunk on the lowercase side it's UL minus l L is the second thing so to get to UL it has to do a one two three four five okay for the last chunk Dr minus r r is the second thing so we're just seeing what does r need to do to get to here well we have to go one two three four five ticks in the counterclockwise direction for this to be facing the same way as this so that would be a negative five so now we have to add the three numbers from those chunks together so we had a negative one five and negative five so negative one plus five is four and then minus five is negative one now remember if we're doing it this way we have to take the opposite at the very end so instead of negative one it just becomes positive one since we have one it's the letter a and we're finally ready to move on now of the two ways I just showed you you can choose whichever works best for you in solves I memorize the first way but you just might find the other way easier I will make a slight concession in saying that if you learned the second way this last move will be especially easy because it's basically the same clocks as before but the ones we did on the lowercase side are actually going to be on the uppercase side and vice versa and the only other small difference between this and the second way of what I just showed you is that for this one we don't have to take the opposite of whatever number we have at the very end so I guess here we go it's going to be broken down into three chunks and we're just gonna add three things together so on the lowercase side U minus C plus d and then we flip over we do UL minus l and Dr minus r so for the first Chunk on the lowercase side U minus C that would be a negative one because C has to do one take this way to get to U and then we're just going to add that negative one to D so imagine the D clock doing a negative one and that would end right here at nine o'clock or negative three by the way sometimes that's a quick shortcut for this and if you watched the second way of doing the previous thing you know what I'm talking about but if you haven't you can go to this timestamp so now we're going to flip it over to the uppercase side okay so for UL minus l l would have to go 6 in either direction to get to UL so that's a six and lastly Dr minus r well R has to do a one two three to face the same way as they are so yeah that's a three so our three things were negative three six and three so we're going to add all those together and get a total of six now f is the sixth letter of the alphabet so the pair we have is a f i like to use the sound F so in total our memorization is j i f okay so when we finish memorization we end up on the uppercase face and this is where we start solving from so first thing you want to do is put the pins in the lowercase DL position remember that means that all the pins except for DL are facing up so we're going in order of our memorization um for the first letter we're going to use our left hand and for the second letter we're going to use our right hand so with jage well J is first so we would do the this down pin move with our left hand so the letter J corresponds to the number 10 which is also equivalent to negative two on clock so we'll do a negative two with our left hand and then our second letter in the pair which is also J we'll do with our right hand so negative 2. now we're going to go in the r position which means these two pins are up and these two are down and the letter pair we have is I or the letter i twice now this second simultaneous move is the only exception to the left hand first thing let's say we had ik instead of I I this time like we we would be doing the K with our left hand and the I with our right hand but since we ended up getting I twice um we can think about it as just doing the second I with our left hand and the first eye with our right hand besides this second simultaneous move the others do have the first letter corresponding to your left hand in the uh second letter corresponding to your right now what we're going to do is go into a pin position Dr and we're going to basically just intuitively make this two by two Block in the top left so with my right hand I'll pair the center up with these edges with my left hand I'll pair this corner up with these other pieces now our position is backslash which remember means ul and Dr are up and we have F so a and remember now we're back to doing the first thing with our left hand so a would be like that a is the number one and then F in our right hand f is the sixth letter so we would be doing a one two three four five six the rest is actually intuitive so we're going to go into a pin position ul and we're trying to make this three by two block on the left so what I'm gonna do is match all these up with this Edge right here and with my right hand I'm gonna match this corner with all these other things so it would look like that now we're going to go into pin position l and pretty much match everything except for this Ur corner so I'm going to match these things with the edge like that and then with this hand I'll match the corner with all these other things so that matches the corner and our last pin position is going to be lowercase u r so everything except for you are up and we're literally just solving the clock from here to clear things up let's do another example but this time I won't explain small details as much so follow along with the scramble all right here's how it looks we'll start from here and do c minus D like before so C minus d d has to do a 5 to get to C so with the number five we memorize the letter e now we're going to do Dr minus r that would be a three and we'll flip it over and to do uppercase U minus L these are six apart from each other so we have three and six we add three and six to get nine or negative three which is the letter I when I get e and then I I like to think of E I E I O from the good old nursery rhyme old MacDonald had a farm but literally just do what works for you don't be afraid to be creative but also it helps to kind of use the same word or sound uh every time you get a certain letter pair so I'm not going to switch it up and use something different for EI if I get it again now we negate the second part of the letter we just memorized so this we have three and then six so the second part was six which just becomes negative six which is actually equivalent to six right because negative six and six are twelve all from each other so that would be the letter F now we flip back over and do D minus r which is a sixth so that'd be another F so when you get F and then F you could use the sound foof now for this long one I'll do it both ways so we flip over to the uppercase side we start with u r minus U that's four now add it to C so C goes over here and then this minus D this has to do with negative two to match with this imaginary clock facing this way so we're at negative two and then we flip it over add it to this so do a negative two it ends up right here now subtract this well this has to do with negative 2 right to end up facing the same way as this imaginary clock so the number we have in mind is negative two now lastly we add that number to this so we're just doing a negative 2 to this clock so one two and it ends up right here three o'clock and that's the letter c now I'll just show you the other way quick in case that's how you want to do it um so we have the first chunk U minus C plus d u minus C is two and then we add that to D so one two and it ends up at six o'clock so we have six now next chunk UL minus L well these are matching so it's zero and then this other chunk Dr minus r that's the three so we have six zero and three those add to nine or negative three and remember if we do it the second way we have to take the opposite at the very end so negative three just becomes three which of course is going to give the same outcome of the letter c all right so now for the last one on the lowercase side U minus C plus d so U minus C that would be a five would be added to D so we do one two three four five we end up at four o'clock so we have four and then UL minus L well that's just zero because these are matching so four and zero now Dr minus r r has to do with negative five to get to Dr so we have four zero and negative five does that up to negative one in total so negative one or eleven depending on how you wanna think about it that's the letter K because K is the 11th letter of the alphabet we have C and then K so our word can be clock in total we have e-i-e-i-o foof clock from the pin position lowercase DL we'll do the E with our left hand so e is five so one two three four five and then I with our right hand so negative three now we'll be in position R and do foof so FF since they're both F even if we switched it around it wouldn't change anything let's just say we have the first F and second F when we actually memorize we can switch those two the second s is the one we're doing with our left hand right so one two three four five six because if it's the sixth letter and then the first step we're doing with our right hand because remember the second simultaneous move is the only time we switch those around so one two three four five six now we go to pin position Dr and makes this two by two block intuitively like that now backslash and we have clock so C with our left hand so one two three and negative one with our right hand just like that and from pin position UL will make this whole 3x2 block and from pin position L will match everything except for this Ur corner now lastly from pin position lowercase you are we'll finish the solve just a quick disclaimer I used random scrambles for both of those walkthroughs and unfortunately both times we happen to have the same letter twice for the second letter pair but just know that that second letter pair is the exception where we want to do the first letter with our right hand in the second letter with our left hand when I'm actually inspecting before I start solving what I like to do is switch around my two letters for that pair so that I don't have to figure it out during the solve so if I have J and then C I just switch it to CJ and then I know okay I can do the C with my left hand and the J with my right hand so that's about it I tried to make this tutorial as clear as I could but there's definitely a lot to this method so make sure you let me know down in the comments if you have any questions or anything else you might want to learn about this method seven symbol does have a somewhat steep learning curve so you may find yourself struggling to inspect in under 15 seconds my main advice would be to do lots of cells at first something I did when loading 7 simole was essentially just mentally running myself through the different combinations of clocks I would have to memorize through each move in the order I would have I would have to memorize them in and you can also run yourself through like the execution process so like the different pin positions and the order they come up in if you think that'll help you once you have the process down and you're trying to get faster at memorization you can use a training tool by Joshua Marriott which I'll leave a link to down in the description but yeah besides that good luck with learning7 simul and if you made it to this point congratulations and thank you for watching