Understanding Crazy 3x3x3 Earth
First, take a look at the diagram below.
You'll see that Earth is listed as "11", and on the picture, the white and green faces, which are next to each other, are different to the other 4 faces. The "1" means that when you turn the white and green faces, the center parts turn with the face. When you turn the other faces, the center parts don't move. So they're "0" faces.
But yours may have different colours as the "1" faces. It'll definitely have two faces next to each other where the centers turn with the face, but they might be, for example, green and red. (Apparently the factory just puts them together with the correct face specification regardless of colour.) It's a good idea to make yours the same colour specifications as the original. This site will be using the correct colours. This video will show you how.
The Basic Plot
- Solve inner edges
- Solve outer edges
- Solve outer corners
- Solve inner corners (circle corners)
Step 1: Inner Edges
Solve the inner edges as follows:
- Yellow cross, then hold yellow on top
- Solve blue, red and orange middle layer pieces in any order
- Solve blue, red and orange bottom layer pieces in any order
- Solve blue, red and orange top layer pieces in any order
- Solve green and white pieces
Step 2: Outer Edges
A useful thing to know is that when you don't involve the green and white faces in an edge piece series, the inner edges are unmoved.
This means that as long as we do an edge piece series using only the red, orange, yellow and blue faces, we can move our outer edges as we like. Proceed like this:
1. Solve all the white and green pieces first by bringing the "visitor" piece onto the red, blue, yellow and orange faces, and then carrying out an EPS. Then return it to its home.
2. Solve the remaining five pieces as normal.
3. If you need to swap two pieces, use a "series of replacements". Make sure that you have a "1" face (white or green) on the right and a "0" face (any of the others) on top. Then re-solve the remaining edges.
Step 3: Solve Outer Corners
Do this exactly as for a standard cube, using the corner piece series. You won't mess up any of the edge pieces you've already done.
Step 4: Solve Inner Corners
There are a few different options for where to hold the faces and which inner corner pieces cycle. The one I've found the most useful is to have the "1" faces (white and green) as the up face and left face. It makes no difference whether white is up or green is up, as long as both faces are up and left. [It is possible to solve inner corners before outer corners, and only use a single corner piece series for the inner corners. When I experimented with this, I found it much harder visually and also to place the pieces.]
Here's what to do:
- Corner piece series first turn of upper face clockwise
- Turn the whole cube clockwise about the vertical axis
- Corner piece series first turn of upper face anticlockwise
That procedure cycles the three inner corners from LUB -> LUF -> UBR. That means the piece on the left face (in the up-back position) will move to the left face (in the up-front position), which will move to the up face (in the back-right position).
Using the above, we cycle our inner corners pieces (potentially 24 of them) until all are solved. Initially it's quick and easy. It's often possible to cycle 2 at a time, and occasionally, all 3. As there are less pieces to cycle, it becomes harder. When you're down to the last 5 or so, it can often be difficult to setup the pieces and keep track of what you did. The video below will give you a good idea of how to do it.
And a final video showing the endgame.
And that's it. Your Crazy 3x3x3 Earth 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.