4x4 parity algorithms

Useful Last 2 Edges Algorithms [4x4] Advanced. The algorithms in this module are used for solving Last 2 Edges [L2E] cases on the 4x4 cube. Download Tutorial PDF. Back to Other Algorithms 0 % COMPLETE 0 LESSONS.

4x4 parity algorithms. 4x4 PLL Parity Algorithms. 4x4 parity occurs on the last layer of a 4x4, where you get a case that is impossible to get on a 3x3 so you need a specific algorithm to solve it. PLL parity specifically occurs because two adjacent edge pieces are swapped diagonally with 2 other adjacent edge pieces. Generally you can't recognize it until you …

In today’s competitive job market, it is essential for job seekers to optimize their resumes to stand out from the crowd. With the increasing use of Applicant Tracking Systems (ATS...

4x4 PLL Parity Algorithms. 4x4 parity occurs on the last layer of a 4x4, where you get a case that is impossible to get on a 3x3 so you need a specific algorithm to solve it. PLL parity specifically occurs because two adjacent edge pieces are swapped diagonally with 2 other adjacent edge pieces. Generally you can't recognize it until you …This step breaks the centers, but it will be restored once you moved the paired edge into the top layer. 1) Pair the edges. OR. 2) Store the edge in the Top Face. Move the paired edge into the top face which brings an unpaired edge into the equator layers. 3) Restore the Center.Another parity tutorial, I'll have the full 4x4 and 5x5 tutorials up soon!Instagram: https://www.instagram.com/1skatergirl33/?hl=enUse the code "Livia" for 5...Basic 4x4 Parity Algorithms. 4x4 OLL Flipped Edge Parity. Rw U2 x Rw U2 Rw U2 Rw' U2 Lw U2 Rw' U2 Rw U2 Rw' U2 Rw' 4x4 PLL Opposite Edge Parity. 2R2 U2 2R2 Uw2 2R2 Uw2. 4x4 PLL Adjacent Edge …Algorithms for Pure. A great gift if you don't know much about cubing... or if you know enough about it.4x4 Corner Swap Parity. 4x4 parity occurs on the last layer of a 4x4, where you get a case that is not possible on a 3x3. This page show algorithms to solve it. PLL parity specifically occurs because two edge pieces are swapped diagonally with 2 other adjacent edge pieces. Generally you can't recognize it until you are at the last stages of ...Some useful algorithms/approaches for solving all PLL + Parity cases on even-layered cubes. Note that in some of the cases, an AUF (Adjustment of U Face) will be required between the PLL Parity Algorithm and a PLL algorithm. ... Toggle navigation. Tutorials . 3x3 Videos 3x3 Algorithms 3x3 One Handed Videos 4x4 Videos 5x5 Videos Big Cube … One thing different when solving a 4x4 Rubik's cube is that after you have reduced it to a 3x3, you might get a parity error. This is when a single dedge ("double ...

Unlike many 4x4x4 OLL parity algorithms which people have gotten from 3x3x3 solvers, this one was not obvious to translate to the 4x4x4. As you can see, it has some very unusual turns; and it is very unique! See it on my wikipage for more details! On that page, one can find a 4 move algorithm which needs to be repeated 5 times to fix … 4x4 PLL Parity Algorithms. When you are solving a 4x4, PLL parity can significantly slow down a solve. Luckily, there are some tricks you can use to minimize the damage without learning too mamny new algorithms. Some algorithms in this set are similar to PLL algorithms you already know, except there is a parity algorithm mixed in. OLL Parity Algorithm 1: This algorithm is the easiest to execute. It flips the two edge pieces as well as the corners. It also moves other edge pieces in the top layer. If your focus is speedsolving the 4x4 then this is the recommended algorithm. This should be done before you permutate the corners and edges of the last layer.Alternative algorithms here OLL Case Name It is recommended to learn the algorithms in the - Probability = 1/x Round brackets are used to segment algorithms to assist memorisation and group move triggers. order presented. Squares (r' U2' R U R' U r) S1 - 5 - Probability = 1/54Sep 1, 2022 · 4x4 PLL Parity Algorithms. 4x4 parity occurs on the last layer of a 4x4, where you get a case that is impossible to get on a 3x3 so you need a specific algorithm to solve it. PLL parity specifically occurs because two adjacent edge pieces are swapped diagonally with 2 other adjacent edge pieces. Generally you can't recognize it until you are at ... 20 Apr 2013 ... So, here you have it, my way of solving the 4x4x4 without any parity at all. To do this, you need to be familiar with a layer by layer solve ...

May 1, 2019 · An efficient 4x4x4 parity algorithm, intuitively. The 4x4x4 cube is more complicated to solve than the 3x3x3 due to having a parity problem. If you have never solved a 4x4x4 before, I encourage you to go away and try solving it yourself, then come back to this article later. The parity I refer to is as follows (speedcubers call this OLL parity ... In today’s fast-paced digital world, finding the perfect candidate for a job can be a daunting task. With numerous hiring sites available, it’s crucial for businesses to understand...Rubik's 4x4. You can do the Rubik's 4x4. Guide your way to mastery with the Rubik’s Master Solution Guide. Follow the steps and before you know it, you’ll be a Rubik’s master! DOWNLOAD PDF. Learn to solve. Introduction. Solve the Centre. Pair the Edges. Solve Like the Rubik's Cube.An efficient 4x4x4 parity algorithm, intuitively. The 4x4x4 cube is more complicated to solve than the 3x3x3 due to having a parity problem. If you have never solved a 4x4x4 before, I encourage you to go away and try solving it yourself, then come back to this article later. The parity I refer to is as follows (speedcubers call this OLL … One thing different when solving a 4x4 Rubik's cube is that after you have reduced it to a 3x3, you might get a parity error. This is when a single dedge ("double ... Sep 1, 2022 · OLL Parity Algorithm 1: This algorithm is the easiest to execute. It flips the two edge pieces as well as the corners. It also moves other edge pieces in the top layer. If your focus is speedsolving the 4x4 then this is the recommended algorithm. This should be done before you permutate the corners and edges of the last layer.

Pinos brookneal.

PLL Parity on the 4x4. PLL ALGORITHM 1. (Uu)2 (Ll)2' U2 l2' U2 (Ll)2' (Uu)2. PLL ALGORITHM 2. L2 D (Ff)2 (Ll)2 F2 l2 F2 (Ll)2 (Ff)2 D' L2. PLL ALGORITHM 3. (Uu)2 (Ll)2 U2 l2 U2 (Ll)2 (Uu)2 F' U' F U F R' F2 U F U F' U' F R. PLL ALGORITHM 4. (Uu)2 (Ll)2 U2 l2 U2 (Ll)2 (Uu)2 R U' L U2 R' U R L' U' L U2 R' U L' U.21 Oct 2019 ... Comments4 · How To: Solve 4x4 orientation parity intuitively · 4x4x4 Solve Without Parity! · Rubik's cube 4x4 edge parity without complicat...May 1, 2019 · An efficient 4x4x4 parity algorithm, intuitively. The 4x4x4 cube is more complicated to solve than the 3x3x3 due to having a parity problem. If you have never solved a 4x4x4 before, I encourage you to go away and try solving it yourself, then come back to this article later. The parity I refer to is as follows (speedcubers call this OLL parity ... AlgorithmRw, U2, Rw, x, U2, r, U2, x', l', U2, l, U2, r', U2, r, U2, Rw', U2, Rw'Facebookhttps://www.facebook.com/CrazyBadCuberSubscribe to my new channel he...This step breaks the centers, but it will be restored once you moved the paired edge into the top layer. 1) Pair the edges. OR. 2) Store the edge in the Top Face. Move the paired edge into the top face which brings an unpaired edge into the equator layers. 3) Restore the Center.4x4 PLL Parity Algorithms. 4x4 parity occurs on the last layer of a 4x4, where you get a case that is impossible to get on a 3x3 so you need a specific algorithm to solve it. PLL parity specifically occurs because two adjacent edge pieces are swapped diagonally with 2 other adjacent edge pieces. Generally you can't recognize it until you …

4x4 PLL Parity Algorithms. 4x4 parity occurs on the last layer of a 4x4, where you get a case that is impossible to get on a 3x3 so you need a specific algorithm to solve it. PLL parity specifically occurs because two adjacent edge pieces are swapped diagonally with 2 other adjacent edge pieces. Generally you can't recognize it until you … Easy Parity Cases. Some useful algorithms/approaches for solving OLL + parity and PLL + parity on even-layered cubes. These algorithms are a very small selection of all possible cases to introduce intermediate cubers to tackling OLL and PLL + parity in one step. The cases here are essentially either easy to recognise, memorise, or execute, and ... Description. We've created Print Friendly PDF that you can use whilst you are learning 4x4 Parity. The PDF file contains 2 pages with both the OLL and PLL parities. The Download link is available available after checkout is complete. Download link is also emailed to you. Product Specifications.4x4 and more TUTORIALS. How to Solve a 4x4 | Complete guide; How to Pair Edges on a 4x4; 4X4 | OLL Parity; 4X4 | PLL Parity; 2X2 | How to solve a 2x2 using ORTEGA; NXN | Commutators (swap two centers) on Big Cubes; 5x5 Edge Parity; ALGORITHM SETS. 3x3 | F2L - First Two Layers; 3x3 | OLL - Orientating Last Layer; 3x3 | PLL - Permutating Last ...3. Re-align edges. If the edges and corners of your puzzle’s top layer are solved, you can skip to Step 4. If your puzzle looks like this, although any two corners can be swapped on the last layer (instead of three possible corners, which we can fix using a U algorithm), use these algorithms to move the edge pieces around the center into their …3. Re-align edges. If the edges and corners of your puzzle’s top layer are solved, you can skip to Step 4. If your puzzle looks like this, although any two corners can be swapped on the last layer (instead of three possible corners, which we can fix using a U algorithm), use these algorithms to move the edge pieces around the center into their …Sep 1, 2022 · 4x4 PLL Parity Algorithms. 4x4 parity occurs on the last layer of a 4x4, where you get a case that is impossible to get on a 3x3 so you need a specific algorithm to solve it. PLL parity specifically occurs because two adjacent edge pieces are swapped diagonally with 2 other adjacent edge pieces. Generally you can't recognize it until you are at ... Machine learning algorithms have revolutionized various industries by enabling computers to learn and make predictions or decisions without being explicitly programmed. These algor...I'm solving my 4x4 Rubik's cube (aka Rubik's revenge) for the first time, and I have the "OLL parity" case: There are plenty of algorithms for this available online, but different people use different notation and nobody ever says which one they're using, so I risk messing up my cube if I guess wrongly.

You may run into this OLL parity while working on yellow cross and fish. If you need to know the yellow cross and fish algorithm, go find a 3X3 cube solution...

A full guide to handling PLL parity. A lot of the cases follow simple rules or end up reducing to the same flowchart.Sponsored by SpeedCubeShop http://bit....And on the back of each flash card are the. Notations needed using (colors) Then a phrase or short clue to give info to help remember the algorithm. #1 is blue X 2 for U 2 (blue R' F R F' times 2) + 2 - U's. On a cube that is solved : # 2 = # 2. # 5 = 8.Edge Parity on a 5x5 occurs when you pair the last edges and one edge doesn't match. This is because the two "wings" need to be swapped. Perform this algorithm with the flipped edge piece in the front top position. Rw U2 x Rw U2 Rw U2 Rw' U2 Lw U2 3Rw' U2 Rw U2 Rw' U2 Rw'. The solution above can be used for 4x4 up to 7x7. The …I'm solving my 4x4 Rubik's cube (aka Rubik's revenge) for the first time, and I have the "OLL parity" case: There are plenty of algorithms for this available online, but different people use different notation and nobody ever says which one they're using, so I risk messing up my cube if I guess wrongly.OLL is the 3rd step of the CFOP, and the "busiest" in respect of the amount of algorithms required to complete it. There are 57 different OLL variations, therefore needed 57 different algorithms to learn in order to complete the OLL step in just 1 algorithm. It is best to start with 2 look OLL and navigate your way around the full OLL ( Learn 2 ...Collection of 4x4x4 Reduction and Parity algorithms. Digital cheat sheet tutorial on how to solve 4x4x4 Rubik's cube. Solution for 4x4 magic cube and speed cube twisty puzzle.

Garden state parkway fatality.

Dave's hot chicken warren photos.

4x4 PLL Parity. When you are solving a 4x4, PLL parity can significantly slow down a solve. Luckily, there are some tricks you can use to minimize the damage without learning too mamny new algorithms. Some algorithms in this set are similar to PLL algorithms you already know, except there is a parity algorithm mixed in. By doing the parity ... PLL parity is when only 2 edge pieces are remained unsolved while the rest of the cube is fully solved. This case also cannot happen on a 3x3 cube (reasons below), and is being fixed by the PLL parity algorithm. The PLL parity algorithm does preserve all pieces but the switched edge pieces, and therefore can be used at the end of the solving ...I wanted to make this because my next tutorial is going to be 4x4. 00:00 - Introduction 00:05 - OLL Parity 00:46 - PLL Parity (I show the alg for when opposite …How to Solve a 4×4 Cube- The Rubik’s Revenge. Step 1: Familiarize Yourself with the Rubik’s 4×4 Cube. Rubik’s Cube is made up of edge, corner, and center pieces. Rubik’s Cube has 24 center pieces, 24 Corner pieces and 24 edge pieces. Rubik’s Cube has no fixed center piece to indicate the color of each face. Understanding Rubik’s 4 ...At a beginner level the puzzle is solved layer-by-layer in the following steps: STEP 1 - SOLVE THE FIRST LAYER STAR. STEP 2 - SOLVE THE FIRST LAYER CORNERS. STEP 3 - SOLVE THE SECOND LAYER EDGES. STEP 4 - SOLVE THE THIRD LAYER CORNERS AND EDGES. STEP 5 - SOLVE THE FORTH LAYER …OLL Parity Algorithm 1: This algorithm is the easiest to execute. It flips the two edge pieces as well as the corners. It also moves other edge pieces in the top layer. If your focus is speedsolving the 4x4 then this is the recommended algorithm. This should be done before you permutate the corners and edges of the last layer.PLL parity is when only 2 edge pieces are remained unsolved while the rest of the cube is fully solved. This case also cannot happen on a 3x3 cube (reasons below), and is being fixed by the PLL parity algorithm. The PLL parity algorithm does preserve all pieces but the switched edge pieces, and therefore can be used at the end of the solving ...Collection of 4x4x4 Reduction and Parity algorithms. Digital cheat sheet tutorial on how to solve 4x4x4 Rubik's cube. Solution for 4x4 magic cube and speed cube twisty puzzle.23 Apr 2018 ... This is a quick tutorial to easily solve the 4x4 Last two Edges Parity. I slowly turn and provide a detailed algorithm that easy to follow ...At a beginner level the puzzle is solved layer-by-layer in the following steps: STEP 1 - SOLVE THE FIRST LAYER STAR. STEP 2 - SOLVE THE FIRST LAYER CORNERS. STEP 3 - SOLVE THE SECOND LAYER EDGES. STEP 4 - SOLVE THE THIRD LAYER CORNERS AND EDGES. STEP 5 - SOLVE THE FORTH LAYER … ….

@VSQUAREVenkysGuide 4x4 Edge Parity Algorithm - Easy way to remember. About ...Here are all the PLL with Parity Algs I use for 4x4! There are some alternate algs out there that are also good, but I tried to avoid ones that required any ...Hold the cube so that the White center is at the bottom. Use the 2 inner horizontal layers to make a Yellow “bar” in the front face. Turn the front face so that the pair is in the right-hand side. Place the Yellow center pair in the top layer without messing up the White center using the following algorithm.Secondary structural assimilation refers to the assimilation pattern of ethnic or racial minority into the dominant group through parity in access to and the accumulation of wealth...Sep 01, 2022. 29 comments. 4x4 parity occurs on the last layer of a 4x4, where you get a case that is impossible to get on a 3x3 so you need a specific algorithm to solve it. OLL parity specifically occurs because two adjacent edge pieces are flipped, but generally you can't recognize it until you are at the OLL stage of solving.AlgorithmRw, U2, Rw, x, U2, r, U2, x', l', U2, l, U2, r', U2, r, U2, Rw', U2, Rw'Facebookhttps://www.facebook.com/CrazyBadCuberSubscribe to my new channel he...This step breaks the centers, but it will be restored once you moved the paired edge into the top layer. 1) Pair the edges. OR. 2) Store the edge in the Top Face. Move the paired edge into the top face which brings an unpaired edge into the equator layers. 3) Restore the Center.The towing capacity of a 2014 Toyota Tacoma is 3,500 pounds for a four-cylinder/V6 model. A Toyota Tacoma PreRunner 4X4 V6 with the V6 Towing Package has a towing capacity of 6,500...(There exists algorithms which flip an edge but do not distort any centers on the 4x4x4 supercube.) For the two dedge swap (PLL parity), there exists algorithms which do not affect centers on any size supercube, no exceptions, and therefore if your statement was referring to PLL parity regarding same color centers, it is clearly always wrong.Unlike many 4x4x4 OLL parity algorithms which people have gotten from 3x3x3 solvers, this one was not obvious to translate to the 4x4x4. As you can see, it has some very unusual turns; and it is very unique! See it on my wikipage for more details! On that page, one can find a 4 move algorithm which needs to be repeated 5 times to fix … 4x4 parity algorithms, Sep 1, 2022 · OLL Parity Algorithm 1: This algorithm is the easiest to execute. It flips the two edge pieces as well as the corners. It also moves other edge pieces in the top layer. If your focus is speedsolving the 4x4 then this is the recommended algorithm. This should be done before you permutate the corners and edges of the last layer. , Easiest Beginner Tutorial for solving the 4x4 Edge Parity!~~Looking for a 4x4 cube? Pick one up here: http://www.amazon.com/gp/product/B0001CU16A/ref=as_li_t..., 4x4 Easy Tricks for Parity Algorithms. SpeedCubeReview. 103K subscribers. 3.3K. 374K views 6 years ago 4x4 Tutorials/Guides. This is NOT a …, So understood, parity algorithms reveal the fiction that a reduced 4×4 is the same as a 3×3. The algorithms “break” up particular reductions and recast them in a way that more closely resembles states on a 3×3. SuperAntonioVivaldi’s very good parity video addresses this exact point in the 17-20-minute range., And on the back of each flash card are the. Notations needed using (colors) Then a phrase or short clue to give info to help remember the algorithm. #1 is blue X 2 for U 2 (blue R' F R F' times 2) + 2 - U's. On a cube that is solved : # 2 = # 2. # 5 = 8., Bina Kisi Algorithm K Parities Ko Solve kro.How to Solve a 4x4 Rubik's Cubehttps://youtu.be/4IAAUoOOm8cHow to Be Sub 1 On Rubik's Cubehttps://youtu.be/Vir1Xe..., Jan 27, 2021 · I wanted to make this because my next tutorial is going to be 4x4.00:00 - Introduction00:05 - OLL Parity00:46 - PLL Parity (I show the alg for when opposite ... , 4x4: How To Get Faster Full Advanced 4x4 Playlist 4x4 advanced techniques are mostly intuitive, with very few algorithms. Once you're quite good at 4x4, it should take about four times as long as 3x3. For example, if you average 15 seconds on 3x3, you can average 1 minute on 4x4. If you want to be good at 4x4, you should learn all of these. , Learn how to solve the 4x4 Rubik's Revenge with step-by-step instructions and algorithms. The web page explains the mechanics, move notation, and center and edge blocks of the 4x4 cube., Hi, i'm Dan, this is my first video, in which i teach you all of the pll and oll paroty algs from 4x4 through to 7x7. I hope that you enjoy and that the vide..., The fastest and easiest 4x4 parity algorithm. Hope you enjoy. Like and subscribe and comment if you would like to request some video ideas., Google’s Hummingbird algorithm is a complex set of rules that determine how search results are displayed for user queries. This algorithm was first introduced in 2013 and has since..., The key characteristics of 4x4x4 reduction parity algorithms are: They preserve the colors of the centers. (Note that most reduction parity algorithms do not technically preserve the centers themselves, because if they are applied to a fully solved 4x4x4 supercube, one can see that same color centers are swapped with each other.), 13 Aug 2022 ... ... (except J Perm). J Perm•678K views · 2:21. Go to channel · 4x4 Rubik's Cube: OLL Parity (NO ALGORITHMS). CubeRazn•1.1M views · 11:08. G..., 4x4 PLL Parity Algorithms. 4x4 parity occurs on the last layer of a 4x4, where you get a case that is impossible to get on a 3x3 so you need a specific algorithm to solve it. PLL parity specifically occurs because two adjacent edge pieces are swapped diagonally with 2 other adjacent edge pieces. Generally you can't recognize it until you …, Hi guys, in this video I'll show you how to solve all the parities of a 4x4x4 Mastermorphix... This puzzle could be a really hard puzzle to solve, because it..., 4x4 Parity Algorithms. OLL parity algorithm (Also used to swap edges on any large cube like 5x5): r' U2 l F2 l' F2 (r2 U2 r U2 r' U2) F2 r2 F2 ... Supercube algorithms 4x4 and larger (This includes shape modes like the Fisher Cube, Mastermorphix, etc.) Cycles FDR (Front face - down/right piece) to UDR (Up face - Down/Right) to FDL ..., Here are all the PLL with Parity Algs I use for 4x4! There are some alternate algs out there that are also good, but I tried to avoid ones that required any ..., 4x4: How To Get Faster Full Advanced 4x4 Playlist 4x4 advanced techniques are mostly intuitive, with very few algorithms. Once you're quite good at 4x4, it should take about four times as long as 3x3. For example, if you average 15 seconds on 3x3, you can average 1 minute on 4x4. If you want to be good at 4x4, you should learn all of these. , This is a quick tutorial to easily solve the 4x4 Last two corner Parity. I slowly turn and provide a detailed algorithm that easy to follow along!This is my ..., 30 Jun 2022 ... You may run into this OLL parity while working on yellow cross and fish. If you need to know the yellow cross and fish algorithm, ..., OLL is the 3rd step of the CFOP, and the "busiest" in respect of the amount of algorithms required to complete it. There are 57 different OLL variations, therefore needed 57 different algorithms to learn in order to complete the OLL step in just 1 algorithm. It is best to start with 2 look OLL and navigate your way around the full OLL ( Learn 2 ..., The easiest way to Solve 4x4 OLL Parity in 2020Algorithm - RW, U2, X, RW, U2, RW, U2, RW', U2, LW, U2, RW', U2, RW, U2, RW', U2, RW', I'm solving my 4x4 Rubik's cube (aka Rubik's revenge) for the first time, and I have the "OLL parity" case: There are plenty of algorithms for this available online, but different people use different notation and nobody ever says which one they're using, so I risk messing up my cube if I guess wrongly., you can encounter during the 3x3 stage on a 4x4 which aren’t possible on a 3x3. The first parity is known as OLL parity, which is when there are an odd number of oriented edge pieces on the cube. The algorithm we will use to fix OLL parity is as follows. Rw U2 x Rw U2 Rw U2 Rw' U2 Lw U2 Rw' U2 Rw U2 Rw' U2 Rw', 4x4 Corner Swap Parity. 4x4 parity occurs on the last layer of a 4x4, where you get a case that is not possible on a 3x3. This page show algorithms to solve it. PLL …, Solving the 5x5 Rubik's Cube has the same structure as solving a 4x4: Solve the center pieces; Join similar edge pieces; Turn only the outer layers, and solve it like a 3x3! ... hold it on the front/top and do the parity algorithm (6:26) Parity Algorithm: Rw U2 x Rw U2 Rw U2 3Rw' U2 Lw U2 Rw' U2 Rw U2 Rw' U2 Rw' Note: if the top has all solved ..., Apr 13, 2017 · This is NOT a beginner 4x4 tutorial. If you are lost in this video check out https://youtu.be/k2IDfwxt_EM Using Discount Code “SCR” will get a discount off o... , 4x4 PLL Parity Algorithms. When you are solving a 4x4, PLL parity can significantly slow down a solve. Luckily, there are some tricks you can use to minimize the damage without learning too mamny new algorithms. Some algorithms in this set are similar to PLL algorithms you already know, except there is a parity algorithm mixed in., Do you see the potential to free your truck or car and transform it, but don’t know where to begin? If so, bring it to Hi Dust 4x4 & Boss Custom Wheels. We have the skill, the …, When you get to the last layer of the 4x4, there are two possible ‘parity’ cases – these are states that you can encounter during the 3x3 stage on a 4x4 which aren’t possible on a …, The towing capacity of a 2014 Toyota Tacoma is 3,500 pounds for a four-cylinder/V6 model. A Toyota Tacoma PreRunner 4X4 V6 with the V6 Towing Package has a towing capacity of 6,500..., 22 Sept 2014 ... mr is middle right layer ml is middle left layer Uw2 is both U layers Edge/OLL Parity: mr' U2 ml F2 ml' F2 mr2 U2 mr U2 mr' U2 (F2 mr2 F2) ...