Are they 3*3*3?

https://ruwix.com/the-rubiks-cube/

Q: What do these puzzles have in common?

(A)       they don’t seen like a cube.

(B)       All of them are twisty puzzles

(C)       They make you feel dizzy. XD

A: all above are correct. But what is more important is that they are all 3*3*3!

You may think I’m kidding you. So ,let me show you what is going on.

First, study the structure of a rubik’s cube.

There are 6 cubies in the middle of each sides and we call them centers. they merely rotate around their axles, which means their place to one another do not change.(except you switch the sticker) For example, when the white one is on top and the blue one is in front of you ,the one on your left side will be red.

between each of centers we have 12 cubies called edges and the 8 cubies left are corners. Edges can be twist 180 degrees while corner are 120 degrees.
(http://rubikscube.info/concepts.php)

All of cube which can be twisted like this way are 3*3 but in different shape and can be solved like 3*3, which means you have ability to solve all of cubes above if you are able to solve Rubik’s cube

(except some special cases)

Second, learn how to know whether it is a 3*3.

By twisting the cube ,you can easily find the center other cubies rotate around. Make the center in front of you ,and then image a “#” to check if all the sliding surface can correspond to it. (like the picture I show beneath)

http://www.davidguo.idv.tw/cube/