The toy consists of a cube made up of 27 smaller cubes arranged in a 3x3x3 grid with colored stickers on the outer faces of the smaller cubes. A cube starts out in its "solved" configuration with the smaller faces each of the six sides sharing the same color. Each of the six faces of the cube can be rotated freely, moving the smaller cubes around.
The goal of a Rubik's Cube puzzle is to start with some randomized and shuffled messy configuration of the cube and, by rotating the faces, get back to the original solved pattern with each side being a single color.
Actually solving the puzzle is notoriously tricky. It took Erno Rubik himself about a month after inventing the cube to be able to solve it.
Online Rubik's Cube - 𝗣𝗹𝗮𝘆, 𝗦𝗼𝗹𝘃𝗲, 𝗟𝗲𝗮𝗿𝗻, 𝗧𝗶𝗺𝗲
Since then, several methods and techniques have been developed for solving a Rubik's Cube, like this basic strategy laid out on the official Rubik's Cube site. Practiced cube-solvers can complete the puzzle in a matter of seconds, with the current world-record holder solving a cube in 3. Puzzles like the Rubik's Cube are the kind of thing that fascinate mathematicians.
- Enrichment Curriculum That Wont Blow Up Your Brain (Enrichment Curriculum That Wont Blow Up Your Brain - a series Book 1).
- 3x3 Online Solution?
- Four Roads to Freedom!
- Rubik's Cube Solution : Nerd Paradise?
- Any Rubik's Cube can be solved in 20 moves - Business Insider.
- How to solve the Rubik's Cube - Beginners Method.
The toy's geometrical nature lends itself nicely to mathematical analysis. Any solution to a particular Rubik's Cube configuration, then, can be thought of as the list of basic moves needed to return that configuration to the starting solved state. One immediate and obvious question, dating back to the original invention of the cube, is, given a particular configuration of a cube, what's the smallest number of moves needed to solve the puzzle?
Relatedly, what is the smallest number of moves needed to solve any configuration of the Rubik's Cube, a number that cube aficionados refer to as "God's number? As Erno Rubik put it in a recent interview with Business Insider , this question is "connected with the mathematical problems of the cube. Amazingly, it took 36 years after the invention of the toy to come up with an answer. There can be two possibilities at this point.
Keep using this technique until all the corner pieces of the top layer are in place. The upper face should appear as shown below. The center pieces of the middle layer will automatically be in place, while the edge pieces may or may not be placed correctly. Now, from the bottom layer, select an edge piece that does not match the color of the center piece of the bottom face on any side.
In this example, skip bottom layer pieces that contain the color red, and pick a piece formed by any of the following colors: blue, green, yellow, white. Twist the bottom layer such that the front-facing section of this piece lines up with its matching color in the middle and top layers to form a T-shaped element. For example, the piece I have chosen has white on the front face and green on the bottom face. I have moved the bottom layer to make the piece line up to form the white T shown in the figure below.
Now, the white face of this piece has to fit in the edge position to its left, since the green face on the bottom has to line up with the green pieces on the left face. Beginning with a new T-shaped section every time, repeat this procedure until all the edge pieces of the middle layer are in place and the cube looks like this:. Turn the cube upside down, so that the bottom face is toward you. This is where things become a little tricky and you have to proceed intuitively. The goal is to leave the red cross and only one red corner piece facing upward at the bottom left corner as shown in the figure below.
Repeat this sequence until the upper face has been solved for red. At this point, the bottom layer now the top layer since you have turned the cube upside down will have at least one set of corner pieces matching each other, like the yellow ones shown in the image above. Then turn the cube till those matching corner pieces are on the back face, and go through the same sequence again till there are matching corner pieces on every face. One of the faces might even appear to be solved at this point. If you solve the cube once by taking an easy and logical approach such as this one, you know you can solve it any number of times.
Read More , give speedcubing a shot, and maybe even try to come up with an algorithm of your own. Suddenly, a whole new world opens up to you. But be warned. Image Credits: LaPetra. Explore more about: Gaming Tips , Puzzle Games. Your email address will not be published.
Quite easy and simple method to solve the rubiks cube Very much helpful article Will recommend this to all others. This is not the easiest way to do the cube. Your instructions for the first 2 layers are pretty good. Your third layer instructions are pretty bad. There are even easier solutions available these days.
Have a look a this one. You just repeat the same 4 moves until its solved. Hi i need help I got up to phase four and I kept trying and trying the same algorithm f r u r' u' f' and there was always an edge piece somewhere else than on top I could never get all four edges on top. Please help. Unfortunately I have no answers for you, Lisa. That part of the algorithm is usually where I get stuck as well. Only trial and error seems to work for me. I got the first two rows and then the on to get the cross by doing the Algerithm over and over just scrambled my cube back up again, didn't work.
I also struggled with that portion of the solution and had to start all over again several times. But I finally got it by noting down which moves end up messing the cube and trying something different with every iteration.
How to Solve a Rubik’s Cube
I have no idea why, but the last algorithm F2UR'L etc. Any help would be If that last bit of the algorithm is causing you trouble, the best solution is to follow along with the video posted in the article, Akash. I often got stuck at that bit as well. Playing and pausing the video to observe each move helps.
This is just like the other methods in the web, with lots of algorithms dificult to memorize. Just made me wast my time..
How to Solve a Rubik's Cube | Introduction
I would be surprised if there's a one-move shortcut for something that's complex like this. Even if there are shortcuts, you still need to put in the hours to figure them out and learn them. I guess you have to start somewhere, Miguel. Hi Adhin, as a first-time cuber I was able to solve the final layer of a 3x3 cube fairly easily following instructions from the video shown above. Have you given that a shot? It does not matter which direction you turn it. It'll end up the same either way. Now go back to the beginning of this step and keep on doing this until all four corners are oriented properly.
If you do it right, the most you should have to do this process is three times. Sometimes you'll get it on the first try. Sometimes you may get lucky and can skip this step altogether. There are only 4 bottom edge orientation possibilities at this step. If your cube doesn't match one of these, then somebody's been peeling your stickers.
This step's pretty simple. Ignore gray squares; white squares are the ones that need to be oriented. Hold the cube as you see it shown in the picture. If you don't hold it so that the white in the picture corresponds exactly to where disoriented edges are, you may do some moves destructive to your progress.
Peek underneath the cube to match it against one of the diagrams below. White squares represent edges that are not oriented correctly.
- Montgomery KONE, Inc. and Parsons Brinckerhoff Construction Services, Inc; 97-1133, 97-1135 12/09/99.
- Beginner Solution to the Rubik's Cube;
- Where I Began My Quest!
- Skywalker: Highs and Lows on the Pacific Crest Trail.
- Skate Lords;
The second half of this move is almost an exact repeat of the first! This move will switch the places of the two corners in the bottom front without changing their orientation Continue using this move until all 4 corners are in the correct place. Edges still do not matter at this point. You can use this 3-edge switch algorithm over and over again until all edges are in place, which means Note : if you are using a Rubik's Cube that has pictures or patterns instead of colors for each face, then you may need to still orient the centers.
Get notified about new posts and snarky comments by following the twitter account. Nerd Paradise Artisanal tutorials since These include 1 triple-axis, 12 edge pieces, and 8 corner pieces.