# Jing’s Pyraminx

This puzzle is part of the Pyraminx/Skewb family. It looks more like a Pyraminx, since it is a tetrahedron. Well, a pillowed tetrahedron. But it has the same number of pieces as a Skewb, and like the Skewb, half of them are displaced with every twist of a corner. If you are familiar with my Skewb page you know the Skewb has 4 corners that are connected to one another via the inner core, and 4 corners that are not. The Jing’s Pyraminx has only 4 corners, which are indeed connected to one another via the inner core. But the Jing’s Pyraminx, unlike the Pyraminx, has 4 center pieces, and it is these that correspond to the other corners of the Skewb. Since each center piece is an equilateral triangle of a single color, it does not matter if they are twisted from their original positions. The edges of the Jing’s Pyraminx correspond to the centers of the Skewb, but since the edges have two sides instead of only one, orientation matters.

## Corners and Centers

Like the Skewb’s first 4 corners, solving the corners of the Jing’s Pyraminx is simple and only requires a few twists. I ignore the centers when solving the corners and just solve the corners relative to one another. If the centers are not solved it only requires The Move to accomplish the necessary double swap. The Move is a 4 twist sequence that is simple to remember and simple to do. Let R stand for the right half of the puzzle when you are holding the puzzle with 2 corners on top, one in front and one in back. Then The Move R means R↓ L↓ R↑ L↑. Actually you could go up first then down if you want. To do the double swap of centers, it doesn’t matter. I first started using The Move with the Skewb, and I always started by going up. But then when I tried it on the Jing’s Pyraminx I realized that it might be better to start by going down, so when I am using it to cycle edges, the edges being cycled are facing me. When I applied The Move to the Pyraminx, that is the way I went with it. Also, when doing the center double swap it doesn’t matter whether you do The Move R or The Move L. R and L simply tell which side you turn first.

## Cycling 3 Edges

Hold the puzzle with one of the 4 faces of the puzzle facing you, with one corner at the top and two at the bottom. It has 3 edges. The edges of the Jing’s Pyraminx correspond to the centers of the Skewb. When I first attempted to solve the Jing’s Pyraminx, I tried using an 8-move 3-cycle like the one I use with the Skewb. But then came The Move. ( The Move R ) x 2 cycles the right edge piece to the left, the left edge piece to the bottom and the bottom edge piece to the right. Furthermore, the right edge piece does not flip, but the other two do.

## Flipping 2 Edges

If two edges need to flip hold the puzzle so they are both on the bottom layer, and only one corner is at the top, and so that one of the edges that need to flip is in front. Let’s call this piece, Piece 1, and the other edge that needs to flip, Piece 2. Turn the right so Piece 1 moves to the top. Turn the top so Piece 1 moves to the back. Turn the right the opposite direction as before. Turn the left so Piece 1’s home moves to the top. Turn the top so Piece 1 comes to the front left. Turn the left so Piece 1 goes home oriented correctly. When an edge is flipped it is not oriented correctly. When it is oriented correctly, it is not flipped. Now turn the base so Piece 2 comes to the front. Turn the left so Piece 2 moves to the top. Turn the top so Piece 2 moves to the back. Turn the left back into place. Turn the right so Piece 2’s home moves to the top. Turn the top so Piece 2 comes to the front right. Turn the right so Piece 2 goes to the bottom. Turn the bottom so the puzzle is solved.

## Twisting Centers

I added some stickers to the Jing’s Pyraminx so that now it isn’t solved until the stickers on the pink, green, and orange sides line up correctly. In the photo the green side is solved, the orange is not. This makes it much more challenging. I pretty much ignore them until all the pieces are in place and all the edges are flipped correctly. To twist the front center counterclockwise and the left center clockwise, hold the puzzle so the bottom is one color, and do the following 8 steps twice!

1. The Move R
2. Roll the front to the bottom and the left to the front
3. R↓ L↑ R↑ L↓
4. Roll the bottom to the right
5. The Move L
6. Roll the front to the bottom and the right to the front
7. L↓ R↑ L↑ R↓
8. Roll the bottom to the left

There is one more thing. Doing the above sequence once, twists the front and left centers in the opposite direction, and flips the front left and the back top edges. So if you need to flip 2 edges when solving the edges, maybe this is a worthwhile  alternative to look at.