Scope. CFOP 155-26, Safe and Supportive Observations of Residents. A project has a 5 year life, a 16% required rate of return, and an initial investment of $300,000. Class 7- Competitions in 2x2 and 3x3. Basically, you solve a cube with all methods combined, but solving it in a CFOP state. Teach her how to solve a Rubik's cube. 33 votes, 14 comments. The complexity of the Roux method stays constant even with more sophistication whereas CFOP becomes very algorithmic. . GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. To start, for T, it's pretty simple but do the same alg except the first R moves of the sexy and the sledge hammer, are now wide R moves. Select CFOP under the Search for a specific CFOP, Grant, Fund, or Org section. 2-5. The Fridrich method consists of only four steps –. It's one of the fastest and most popul. This will make you more efficient. U' R' F R. Most of the fastest cubers in the world (the ones that can average under 15 seconds) use this method. Trying to. 2 Break-even Analysis Solution – go back to the steps for NPV Break-even (i) CFop = 45. 100% up to you :) As far as learning CFOP, there are a ton of different routes you can take, but the important thing is that you do start. Harley-Davidson, Inc. CFOP (Cross is the 1st step of the CFOP Method. Efficiency is key, if you are coming from CFOP or layer by layer (beginner's) experiment with different methods of solving first block, as the traditional "F2L Pairs" are useful but can be limiting for Roux first block, as you have much more flexibility with the entire. ) - Psuedosolotting is easier than NMCLL. You will have to assign the new NT Item type to the tables J_1BAONV or J_1BAPNV tables and create the rules to get the CFOP automatically assigned. It is also known as the Fridrich Method after its popularizer, Jessica Fridrich. . . Get a gf. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. Cross 8% F2L 59% Oll 19% Pll 11%. Capital: Turn 90°clockwise. This step involves inserting all the corners to make the first layer complete. Use the Shift key to select multiple cases. Lazy CFOP is a speedcubing beginner method. Perform the algorithm below to get to the yellow cross. Before solving anything, do this 4-move sequence repeatedly until you have it memorized. Letter+’2: Turn 180% counterclockwise. This first step is. This method is first developed by a group of cubers and popularized by Jessica Fridrich. • Full CFOP • Steps to have a cuber gf (Success not guaranteed) Step 1. PLL, the last step of CFOP, permutes all last-layer pieces while preserving their orientation. Colour Neutrality. It’s kind of been a struggle still though. OLL and PLL is vertical view. com's article Introduction to Speedcubing for Beginners. need for help, or attempts to cope) which can be discerned in the initial step of planning effective services. Between you and me: I found learning F2L to be extremely, existentially challenging at first, so don’t take it too personally if it takes longer than you think it should to get the. February 14, 2022 CFOP 170-7 Appendix A to CFOP 170-7 Safety Planning Analysis Developed by ACTION for Child Protection, Inc. PLL: The black bars represent the samecolored pieces. Discuss the level of family engagement and explore next steps. 134K subscribers in the Cubers community. F2L: Solving the two layers completely. Basic layer-by-layer methods were among the first to arise during the early 1980s craze, such as James Nourse's The Simple Solution to Rubik's Cube which proposed the use of a cross, and worked its way down. An overview of the steps of beginner and advanced CFOP, and how to approach learning it all! Everybody learns at their own pace and style, so feel free to mi. At first i thought i just had really bad tps, but looking at my smart cube, i think pauses are killing me. You will find different opinions, arguments and experiences from cubers who use these methods and compare them in terms of efficiency, lookahead, rotations and last. Perform the algorithm below to get to the yellow cross. There are two algorithms for corners (n3 and n15) and four for edges (n1, n2, n5, n6). The first step in CFOP is solving the cross. Hello, and welcome to the discussion thread! This thread is for accomplishments, simple questions, and informal discussion…My son is a cuber! So my son has been into cubing since he was 4 (this was on his own). Business, Economics, and Finance. Policies & Procedures. 134K subscribers in the Cubers community. For algorithms to be as fast as possible, you need to do turns quickly, and don't waste time changing your grip. Class 3- Student can describe overview of CFOP (steps) , skips, and begin to learn H-perm and Z-perm. OLL; PBL; CLL; EG-1; 4x4. • Full CFOP • Steps to have a cuber gf (Success not guaranteed) Step 1. GAN Tutorials | Guide on 3x3 LBL and CFOP, 2x2 beginner, 4x4 and megaminx | GANCUBEZZ is a solid speedsolving method that uses very few algorithms, and relies on intuitive block building and edge orientation. Mark the checkbox Create User. MalaysianKeanny Sub-20 (CFOP) Color Neutral, Main: MoFang JiaoShi MF3RS •. #1 is blue X 2 for U 2 (blue R' F R F' times 2) + 2 - U's. 2 Look PLL Permuting the 4 corner pieces: You need to know 2 algorithms for this stage: the Aa-perm & the E-perm (you can use any. The Fridrich method or the CFOP method (cross, F2L, OLL, PLL) is a fast method for solving the Rubik's Cube created by Jessica Fridrich. This is a challenging unit! ADMS 3530 OnlineRule-based module solving Rubik's Cube with CFOP algorithm. However, the most commonly learnt speedcubing method (and hence has a lot of resources available for it) after the beginner's method is the Fridrich method. CFOP is essentially a variant of the layer-first method, but because it summarizes various situations that may occur, the amount of memory needs to be increased many times (119 formulas), but it can also effectively increase the speed. Incorrectly Connected Pieces y' (R' U R) U2' y (R U R') (R U R') U2 (R U' R' U) (R U' R') (R U' R' U2) y' (R' U' R) U F (R U R' U') F' (U R U' R')Business, Economics, and Finance. Therefore are required 21 algorithms to make a PLL solving in just 1 fast algorithm. CFOP: Advantages: - F2L is much easier to learn if you already know a layer-by-layer type beginners method. (F)Whereas in the beginner method you complete the cube as 3 separate layers, the second step of CFOP is to simultaneously complete the First Two Layers (F2L). For people who love any sort of twisty puzzles, including but not limited to…Step 2: Now we need to find the PV of this CFop for 10 years, using a 12% discount rate we need the 12%, 10-year annuity factor (PVIFA 12%, 10 years) 25 8. STEP 4b - Orientate the Last Layer Corners. With some practice, you should be able to solve the cube in about 2-4 minutes. ("Harley-Davidson") (NYSE: HOG) today announced that Gina Goetter will step down as Chief Financial Officer at the end of April 2023 to accept an opportunity outside the Company. Popularity B. And on the back of each flash card are the. The CLL (Corners of the Last Layer) Method has 42 algorithms and 2 steps: Make 1 layer of any color; CLL (42 algorithms) solves the rest of the cube; 9 of these algorithms are from the Ortega Method, and many others are from 3x3 OLL. PLL Parity is when you have 2 pieces swapped in a way that is impossible on a 3x3, and happens on 50% of solves. Steps to have a cuber gf (Success not guaranteed) Step 1. " GitHub is where people build software. Choose Create. The CFOP method (also known as the Fridrich method) is the most widely used technique for solving Rubik’s Cube efficiently and quickly. It is the first last-layer step in many speedsolving methods, including the Fridrich Method. I know f2l is supposed to be an intuitive step, but specific algorithms for specific cases can go a very long way and help consistently reduce your f2l time by half a second per pair. EG. Corporate Financial Operating Plan. Step 1: Create White Cross. Hide the cases you do not plan to learn. 2-Look PLL Recommended: Any level For a beginner, there are 7 algorithms, a few of which will be familiar to you if you have used the beginner's method or CFOP. Timeline:0:00 Intro. Reply. 1 #5 March 3, 2021 11:18:59. Returns the moves to build a cross. Oh yeah definitely, when I first started doing CFOP, heck, just F2L alone, my time to do the same steps by beginner method were practically doubled. 01 and 39. • Full CFOP • Steps to have a cuber gf (Success not guaranteed) Step 1. Each symbol represents specific rotation. Final CFOP over-review. - Steps: Where the Roux method tutorial starts with the most intuitive part of the steps. For people who love any sort of twisty puzzles, including but not limited to…A commutator is an intuitve way to cycle 3 corners or 3 edges, and is useful for the 3-Style method, as well as intermediate 3-Style methods. For people who love any sort of twisty puzzles, including but not limited to…Cross. Enter a User Name and a password. To check whether the corner has been inserted correctly, check whether the. STEP 4b - Orientate the Last Layer Corners. STEP 4b - Orientate the Last Layer Corners. Perform the algorithm below to get to the yellow cross. TheMemeCuber • Full CFOP • Steps to have a cuber gf (Success not guaranteed) Step 1. CFOP is an acronym for Cross, F2L, OLL, PLL, each referring to the four steps of the method. Permuting the 4 edge pieces: Once all the corner pieces are correctly permuted, there are only 4 possible variations for. Daily Discussion Thread - May 29, 2016 : r/Cubers - Reddit. F2L (First 2 Layers) is a way of continuing after solving the cross. Fridrich (CFOP) Method First 2 Layers (F2L) Introduction. . PLL Algorithms Page. This guide assumes that you are a complete beginner and suggests one way to learn to speedcube, leading up to full CFOP. CryptoAssuming you use CFOP, recognising edge orientation while going in for the last pair is very easy. Take reasonable steps to ensure meaningful access to limited English proficient individualsIf you are interested in different methods of solving the Rubik's cube, you might want to check out this thread where users discuss the pros and cons of CFOP, Roux and ZZ. The story of CFOP - do slow solves and improve F2L. Other algorithms can be memorized by patterns (which is a common technique for memorizing algorithms) shown in the video. CFOP (Cross is the 1st step of the CFOP Method. Trash. Last Layer): Complete the Rubik’s cube by correctly placing the edge pieces and the last layer corners. 2. Steps for improving with CFOP, and when to work on what. into the CFOP speedsolving method. This. 134K subscribers in the Cubers community. Step 2. CFOP is the most frequently used speedsolving method for the 3x3x3 cube . Sections 39. NOTE: CFOP 170-11 provides requirements for the responsibilities of licensing agencies when a report involves a child in licensed foster care. Teach her how to solve a Rubik's cube. 175(3)(b), F. Trash. Add CFOP’s to the “Account Manager” tableThe Steps [] CFOP can be viewed as an advanced version of a Layer-By-Layer method. The PLL (Permutation of Last Layer) algorithms for solving the Rubik's cube with the CFOP method. This will be done in the last step. Teach her how to solve a Rubik's cube. OH OLL; OH PLL; 2x2. CFOP stands for Cross, First Two Layers (F2L), Orientation of the Last Layer (OLL) and Permutation of the Last Layer (PLL). It is the same block as the first step, but on the right. CryptoLearn how to get faster at the 3x3 Rubik's Cube with the CFOP Method. This video shows how to read moves on the Rubik's Cube so you can follow written algorithms. Of the algorithms above, n15, which is used to swap. For people who love any sort of twisty puzzles, including but not limited to…May 1, 2019 CFOP 170-9 2-3 (8) If one or more of the parent/legal guardian(s) are unwilling to commit to the. I started cubing a year ago, my PB is 49 seconds, I use the beginner's method, and am learning 2-look OLL and PLL. truePianoCube93 DCN CFOP, Sub-15 2H, sub-22 OH. For F2l, you only care about 2nd layer edges. Two-look OLL (Orientation of the Last Layer) is a part of the CFOP (Cross, First 2 Layers, Orientation, Permutation) method used by most speedcubers. 3. The main method for solving the Rubik's Cube learnt by beginners is aptly named the "Beginners Method". Description. It has 4 steps: Cross, First two layers (F2L), Orienting. For seclusion and restraint, follow the requirements in CFOP 155-53 (Suicide and Self-Injury Prevention), CFOP 155-20 (Use of Seclusion), and CFOP 155-21 (Use of Restraint). Learn full pll before oll, it'll lower your times by a larger margin. Second Block. Step 1: First choose a centerpiece of any color (say white) and then make a white cross by bringing all the four edge pieces adjacent to the white center. . GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. Step 2. The Roux Method is a hybrid of block-building and corners first methods. 1 - 3. CFOP steps in detailSolve the four edge pieces of the chosen first layer into the shape of a cross. May 1, 2019 CFOP 170-9 2-3 (8) If one or more of the parent/legal guardian(s) are unwilling to commit to the. • Full CFOP • Steps to have a cuber gf (Success not guaranteed) Step 1. The CFOP method (C ross – F irst 2 Layers – O rienting Last Layer – P ermuting Last Layer), sometimes known as the Fridrich method, is one of the most commonly used methods in speedsolving a 3×3 Cube. - CFOP has more alg subsets for last layer and last slot (WV, SV, VLS, ZBLS, COLL, OLLCP, ZBLL etc. FSFN Documentation. I'm stuck at average 30-40 right now, so I'm debating my next steps Reply GetWellSune Sub-17 - Autisticuber • Additional comment actions. a. The CFOP is more widely used than the Roux. I timed the cross on bottom 5 times. This guide explains the steps involved, the concepts, and the tips to improve your speedcubing skills. Intuitive F2L Recommended: Any level This is a guide on how to solve a Rubik's Cube, for those who have little or no experience with cubing. Teach her how to solve a Rubik's cube. . See all steps Step 2: How To Solve The White Corners In The First Layer. 11, developed the method used by most speedcubers to date – CFOP. The cross is one of the most important parts of the solve! Practice solving the cross efficiently and quickly by looking up example solves from various cubers on YouTube. At this point the white cross, the first two layers (F2L) are both done and the last layers pieces are oriented (OLL). On a bad day i average 13 - 15, on a good day i average 12 - 11. If you can do the last layer well, you can start learning more algorithms, just one or two at a time. (The one created in previous step) as shown in screen shot below. Business, Economics, and Finance. This method works by sequentially building three layers of the cube from bottom to top. It is best to start with 2 look OLL and navigate your way around the full OLL ( Learn 2. Hide the cases you do not plan to learn. Okay so the ones that do not work for cfop 2 look oll is your headlights, Pi, L, and T algs, but with a little variation on some of them we can make them work. First, the edges are oriented - There are 3 possible. Two-look OLL (Orientation of the Last Layer) is a part of the CFOP (Cross, First 2 Layers, Orientation, Permutation) method used by most speedcubers. It will be very important in Step 1 and Step 3! 4-move sequence:F2L (First Two Layers) is the second stage of CFOP, where you solve the first two layers of the cube at the same time. BigFatEgg_. At first sight it. Learn how to solve the Rubik's Cube using the CFOP method, which stands for Cross, F2L, OLL, PLL. This is the second step of the Fridrich method (CFOP). For people who love any sort of twisty puzzles, including but not limited to…Go to tab Define Supervisor Dest. There are two different options to insert a CFOP. September 20, 2023 CFOP 170-7 A-4 • There is no apparent structure or routine in the household that can be established on a day to day basis, and therefore an in-home safety plan cannot be developed to accommodate the inconsistency; • In-home safety services cannot sufficiently target specific days and times when Impending Danger threats may. CFOP is an advanced method for solving the Rubik's Cube. The Fridrich method or the CFOP method (cross, F2L, OLL, PLL) is a fast method for solving the Rubik's Cube created by Jessica Fridrich. The first box is where you will put the CFOP information that will tell the business office what account(s) to charge your purchase to. Click on an image to add it to the trash. During this step, pay attention to how many corners have yellow facing up. Step 2: First two layers - F2L. Below are the 3x3 moves for reference, but keep in mind that there is also different notation for big cubes (4x4 cube and up) mentioned in the video. Two-look refers to the technique of doing this maneuver in two parts, which gives you 11 algorithms to learn, as opposed to the 57 algorithms for traditional OLL. CFOP 170-05 Chapter 01 - Investigations Involving Multiple Counties. Continue Cfop method algorithms pdf From Wikibooks, open books to the open world of fridrich method or CFOP method (cross, F2L, OLL, PLL) is a quick method to solve the Rubik's Cube created by Jessica Fridrich. You should be able to determine all the rotations needed to complete the white cross after inspecting the cube, and you'll succeed only if you foresee 7 steps. Most world records have been attained using the CFOP， so we can conclude that it is the fastest method in terms of numbers. Fridrich (CFOP) Method First 2 Layers (F2L) Introduction. CFOP stands for Cross, First Two Layers (F2L), Orientation of the Last Layer (OLL) and Permutation of the Last Layer (PLL). For people who love any sort of twisty puzzles, including but not limited to…Trash. CFOP. Read Speedsolving. solveOLL => Moves. CFOP ( Cross, F2L, OLL, PLL, pronounced C-F-O-P or C-fop) is a 3x3 speedsolving. PLL: The black bars represent the samecolored pieces. . Final CFOP over-review. Within two business days, each contact with a family will be recorded by the case manager inSo I really want to get really fast at cubing. Hold the cube so that thisBelow are the steps to solve a Rubik’s cube-. These are important concepts in. Firstly， most speedcubing world-record holders use the CFOP and not the Roux method; hence fewer players compete using the Roux. Although it requires you to memorise many (up to 78) different formulas, it's one of the. On a cube that is solved : # 2 = # 2. Steps to have a cuber gf (Success not guaranteed) Step 1. solveOLL => Moves. PB is 9. Ignore the corners for now. Hold the cube so that thisTrash. Today many speedcubing methods. Jessica Fridrich, who placed 10 th in the competition with a best solve of 29. For people who love any sort of twisty puzzles, including but not limited to: Rubik's Cubes (and any…Hello, and welcome to the discussion thread! This thread is for accomplishments, simple questions, and informal discussion about cubing! No question. CFOP’s algorithms areway more than the beginner method, exceptfor the Cross. Solving the PLL is the last step of the CFOP, and is the final straight in speedsolving the Rubik's cube. Business, Economics, and Finance. Step 0: Preliminaries. White cross ; 2. But within blindsolving, commutators are not necessary unless you are very serious about. For this method you only need to orientate the cross. For people who love any sort of twisty puzzles, including but not limited to…Ruwix Com the Rubiks Cube Advanced Cfop Fridrich Orient the Last Layer Oll - Free download as PDF File (. ConsYiheng Wang 4. 134K subscribers in the Cubers community. Steps of Advanced CFOP. The following are the recommended steps to achieve consensus with the family. It is a much more efficient version of the layer by layer solution method for beginners. The machinery costs $1 million. Jessica Fridrich, who placed 10 th in the competition with a best solve of 29. by /u/PianoCube93 gives a good guideline on when/in which order you should learn/practise what. Conservation Farm Option Project. 28-2. 5. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. CFOP 170-05 Chapter 01 - Investigations Involving Multiple Counties. Access will be available the next day. Terminology. The Nota Fiscal Item Type is used as one of the parameters to get automatically the correct CFOP for each nota fiscal. Step 2: Now we need to find the PV of this CFop for 10 years, using a 12% discount rate we need the 12%, 10-year annuity factor (PVIFA 12%, 10 years) 25 8. Make sure you know how to read move notationto follow the tutorials. EOLine is probably as "hard" as Cross is to be intuitive in. 22 seconds by Felix Zemdegs. These are important concepts in. 2. Solve a 3x2x1 block onto the left face. NOTE: CFOP 170-11 provides requirements for the responsibilities of licensing agencies when a report involves a child in licensed foster care. So the hard work is going to be memorizing the OP bit, and then you'll be still in the same situation with committing all the OP. A means to achieve that is to have 3 algorithmic steps (compared to 2 for CFOP for example); while ensuring that those algorithms do indeed tackle a large set of cases (2LLL CFOP handles ~62k cases, so the said algorithms should handle 62k^(3/2) ~ 15M cases). Jessica Fridrich believed that the absolute fastest average that a speedcuber could reach using her method. Welcome to join us and solve rubiks cube 3x3. With some practice, you should be able to solve the cube in about 2-4 minutes. Recently got my first official Sub-10 - 9. This first step of solving the white cross is actually an intuitive stage of the solution process. Got the gist of F2L while solving megaminx for the first time. CFOP is the most frequently used speedsolving method for the 3x3x3 cube . 119 votes, 12 comments. EG. I'm stuck at average 30-40 right now, so I'm debating my next steps Reply GetWellSune Sub-17 - Autisticuber • Additional comment actions. 287. It works on a layer by layer method, first solving a cross on the bottom (cross), continuing to solve the first two layers (F2L), orienting the last layer (OLL), and. These algorithms are used for the final step of the CFOP method, to permute the edges and corners of the last layer, once all pieces are oriented. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. We couldn't even cover every possible situations because at this stage there are so many cases. Save your settings. Although any serious CFOP user should learn eventually learn full OLL, it should be noted that working on better F2L look-ahead is a. OLL: Orient the Last Layer correctly. See the printable page for the original order. The same sub-steps will apply to these as they did. There are two algorithms for corners (n3 and n15) and four for edges (n1, n2, n5, n6). 134K subscribers in the Cubers community. GAN Tutorials | Guide on 3x3 LBL and CFOP, 2x2 beginner, 4x4 and megaminx | GANCUBEZZ is a solid speedsolving method that uses very few algorithms, and relies on intuitive block building and edge orientation. Steps CFOP can be viewed as an advanced version of a Layer-By-Layer method. Then choose the appropriate Algorithm for the case to solve it. 36 votes, 29 comments. Beyond CFOP. Teach her how to solve a Rubik's cube. 2 Look OLL. CFOP 170-03 Procedures Related to Missing Children. 59733 Sales – 2,966,470 Sales = $4,987,366 8 A 4 year project is estimated to produce a product with the following information price is $57 per unit; variable costs are $30 per unit; fixed costs are $9,000; requi 12%; initial investment = $16,000. Step 2: Match colors of all four centerpieces of the lateral face with the edges of the bottom layer one by one and sending the matched pairs. Returns the moves to build first two layers. Click the “Save” button Guide to Adding CFOAPs—For Financial Proxies. Step CFOP can be displayed as an advanced version of the layer-by-layer method. Yiheng Wang 4. The CFOP method is easy and comes with practice. What does CFOP mean as an abbreviation? 14 popular meanings of CFOP abbreviation: 9 Categories. It is possible to make 2 look PLL using. 3. 134K subscribers in the Cubers community. Step 1: Create White Cross. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. F R2 D2. by /u/PianoCube93 gives a good guideline on when/in which order you should learn/practise what. Many of these cases are very similar to each other (mirrors) and therefore use similar solutions. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. 5 Q – 95,000 (ii) PVIFA (12%, 10 years) can be found as follows: Using our calculator and. 2. F2L: 14. Step 2. For people who love any sort of twisty puzzles, including but not limited to: Rubik's Cubes (and any…15 votes, 19 comments. Each case is recognized by the position and orientation of the two pieces in relation to the target slot. I hope someone can give me an example schedule for the time I have and also ways to practice the steps. The first two layers, rather F2L, of the Rubik's Cube, can be solved simultaneously rather than individually. For people who love any sort of twisty puzzles, including but not limited to: Rubik's Cubes (and any…Here are the steps: Memorize where each piece should go; Solve 1 piece at a time; The other pieces don't move while you do this; Edge Solving Method Hold the cube with the white center on top, and the green center on. 35 sales - $650,000) 5,000,000 = 1. While solving the Rubik's Cube with the advanced Fridrich method, when the first two layers (F2L) are solved we need to orient the last layer (OLL) so the upper face of the Rubik's Cube is all yellow. Mark the checkbox Create User. If you struggle with F2L, stay with what you already know and practice that. Don't try to memorize the notation, rather keep a mental note of how the pieces move during an alg. Solve a cross onto one of the sides of the cube; most. "CFOP. The world’s fastest speed cubers use this method to solve the Rubik’s cube under 5 seconds and break world records, and it’s surprisingly easy to start learn. 2-Step OLL Here is a simplified, easy-to-follow version of steps to solve a 3×3 Rubik’s Cube from a 6-Stage process from the official Rubik’s website, using the CFOP method. This method takes some time to learn because it consists of over 70. 134K subscribers in the Cubers community. CFOP 155-41, Environmental Risk Management in State Mental Health Treatment Facilities. As it stands today, most consultants, agencies, and fundraising experts try to apply traditional fundraising practices to online channels and see minimal results. heheboih. This puzzle was invented by Rubik Erno before the 80s and was patented on March 29, 1983. S. Pros. I am an MMP (Massive Multiplayer Platformer) speedrunner with a PB of 1'02. CFOP.