Vadenburgh
The Square-1 in its solved position.
The Square-1 is a cubic twisty puzzle with irregular cubies. It has only three axes of rotation - the top and bottom faces, and the entire right side. There are many methods to solve, but the most popular one is the Vadenburgh method. The algsets will be explained later. The Vadenburgh method starts by getting the puzzle into a cube, and then orients the corners, then edges. After that, it permutes corners, then edges. To solve all of the edges in one alg, you can use EP, which has about 100 algs, due to the fact there are 10 possible edge states on Square-1. "10?" you ask. "I thought there were 5! H, Z, Ua, Ub, and solved!" On Square-1 you can get parity, so there's five new "PLLs": W, Oa, Ob, Adj, and Opp. Moving on, 2 other algsets, (one being MUCH larger,) are OBL and PBL. OBL has about 80 or so cases and PBL... has like 967 or something. Some people say that's too much and decide to learn 2-alg (or 2-look) PBL. Then there's CSP, or cubeshape parity. Remember when you were turning the puzzle into a cube? Well, YOU CAN AVOID PARITY FROM THERE. It's pretty complicated.
Lin/Roux/all that other junk
But of course, that's not the only method.
Trivia[]
- It might not look like it, but it is actually harder than the Megaminx.
- The alternate name for the Square-1 is "Cube 21". Other alternate names are squan, SQ1, and others.