## Tuesday, March 11, 2014

### Skewb Xtreme

The Skewb Xtreme is a new skewb modification produced by Mefferts. To buy this puzzle, click here.

The Basic Plot
1. Solve Corners
2. Place Centers
3. Twist Centers
Step 1: Solve Corners

Begin with any corner piece. Place the 3 corners surrounding it using simple turns. Once those 4 corners are in position, the remaining face may be turned to place the other corners. At this point, either all the corners will be placed or oriented, or else you may need to twist 2 or more corners.

To twist the front corner anticlockwise and the back corner clockwise, perform

L'RLR'  F  RL'R'L  F'

Step 2: Place Centers

Placing the centers is quite simple. At this stage we're not concerned with orienting them. To cycle 3 centers from L->U->F, perform

(L'RLR')x2  DL  (RL'R'L)x2 DL'

Alternatively (not shown in video), to cycle 3 centers from B->U->F, perform

(R'LRL')  y2  (R'LRL')  y2

Step 3: Twist Centers

The only part of the cube which may now not be solved are the centers. These may be inverted in pairs. To flip the L and R center, perform

(L'RLR')x2  F  (RL'R'L)x2 F'

And that's it. Your Skewb Xtreme is now solved. I trust this site has been helpful. If you have any questions or want some clarifications, please use the comments to do so.  To buy this puzzle, click here.

1. Thank you so much. Your method is brilliant.Easy to follow once you've grasped EPS & CPS. I've been learning from you in the last 6 months or so. Have to say that it was a bit hard to understand and take in the first place but it's all good now. Once again thanks heap. Jasond2014

1. Thanks a lot, really appreciate that. I agree, that the ultimate solution (EPS and CPS) is a little difficult to get initially, but once you've got it you can do almost anything with it.

2. This is maddeningly unhelpful for me. I understand this method is the easiest way to solve a skewb Xtreme because it has fewer steps, but as I've never solved a regular skewb, I'm desperate to find a tutorial that is the simplest to grasp. I've solved up to a 5x5x5 but I just don't quite get the concepts that you rush through all too quickly. I believe I am performing all of your algorithms up to placing the centers, but I don't understand at all what you mean or what you're doing when you "set up" the centers. "See if I can find... Ah yes. There it is" what did you do? Why? How do you know to do that? With which cases?

3. Same with me Nathan I totally agree

4. OK chill out guys. I'm planning on making a How to solve any skewb video very soon, where I'll show a number of different skewbs, and how to think about them. Hopefully that will help you out further.

2. What notation is y?

1. Standard rubiks notation to turn the whole cube one turn clockwise. Here's a link:

http://ruwix.com/the-rubiks-cube/notation/

3. Ahhh... thanks for your link - these are VERY advanced terms - d = 2 layer rotation, y = change point of view of the cube.

4. Notation Question: Why do make y lower case, but all other letters upper case?

1. Because that's what the rest of the world seems to do. I didn't invent the terminology. I don't even use it myself, I just have it there to attempt to aid others. On the page above, they use uppercase, but most places I've seen it (esp. on the TP forums) they use lowercase.

5. What notation is DL? I'm following skewb FCN notation and there's no definition for it.

6. The orientation is not specified. Do you hold it with the the corner's point facing you, or like a regular 3 x 3? The reason I ask is because the place where I assume the "video" is supposed to be says "this plugin is not supported"
Thanks.

1. Sorry about the videos. Google has an incredibly annoying habit of changing the backend code required and not telling anybody. I've re-inserted the videos now.

7. This comment has been removed by the author.

8. I have a 12 color sleep extreme and the center algorithm to cycle centers left to up to front isn't working. I can fully understand you tutorial and in my opinion it has been the most helpful but for some reason that algorithm isn't working. Is it me or is it the 12 colors?

1. Well, the algorithm shouldn't depend at all on the colours. However, I suppose perhaps it's possible. I don't have the 12 colour version. Without having one to test I can't really definitively answer your question, unfortunately.

9. Skewb, not sleep :D

10. I've recently gotten the skewb and I've been interested in your method of solving. after you set up the initial four corners and put those on the bottom (part 1 : solve corners). I've come across an intriguing, I'm not sure how to say it, 'permutation?' 'state?' The 3 corners on top all need to be rotated clockwise. timestamp 2:24 in the first part of your video for reference to what I'm speaking about.

1. If that happens, you just treat them in 2 lots of corners to rotate. When you carry out that alg, you'll end up with one pair of corners left. So, if you had all 3 needing to be twisted clockwise, and you do the alg on the front and back corner, you'll solve the back one and have the front one still needing to be twisted, along with the 3rd one which you didn't involve.

11. This tutorial doesn't make any sense it's too confusing how to turn the puzzle

12. What the heck it just made my cube even more messy

13. It never works no matter which direction i try!!!!!!

14. But I am forced to try again as this is the only website with algs

15. whoops i turned wrongly

16. R'LRL') y2 (R'LRL') y2 is there a way to explain this. I need arrows please

1. I cant figure this one out either...

17. Nevermind. The step I was missing u did in the video. Thanks

18. This works well. Thank you. I had to watch the video carefully in a few places to determine what pieces you were referring to. And the middle of step 2 worried me. R'-DL-R is 3 moves in a row on the same plane. But it's easier to remember the algorithm this way.

19. Are the corners supposed to be lined up their corresponding middles after step one? Mine always end up lining up with the wrong middle and I don't understand why. Please help.

20. In step two, I can't get more than one side "solved" at a time. Is there an algorithm or anything, really, that could help my situation?