The Square-2 is a cube-shaped twisty puzzle. It was invented by David Litwin in 1995 as a higher-order version of the famous Square-1 puzzle, and much like the Square-1 it shape-shifts quite heavily when scrambled. The Square-2 has been mass-produced by hknowstore since 2012.

You can think of this puzzle as a Square-1 whose corner pieces were split in half. This makes the puzzle a bit easier to handle and turn since it cannot "lock" like the Square-1 when you have a corner piece blocking the "slice" turn. However, this also gives the puzzle a much greater number of possible combinations, totaling 1.24 septillion! It's also interesting to note that the splitting of the corner pieces allows for two solved positions of this puzzle; One "regular" solved state, and another one with the color scheme flipped (a signle pair of opposite faces swapped in color, for example yellow and white).

A common way to solve this puzzle is by using the "reduction" method. First, decide on the color scheme that you're solving towards (out of the two possible solved states), then pair up the corner pieces to turn the Square-2 into a Square-1, and finally - solve as a regular Square-1.

The Square-2 is not an official WCA puzzle. The world record for fastest solve is unknown at the time of writing, however there are videos floating online showing solves in 20-30 seconds.

Comments 10

NWorld

I did parity with it.

dsdcubing

very cool

Muja

I am playing with bcoz a non cuber broke my all cubes

mohammad

it was vary hard cuz i dont know how to solve sq-1 but i solve it and i cant wait for sq-1 to add

Man

I never thought it would be this easy! (just solved it by myself)

Man

I’ve been waiting for this!

MelonGuy44

Insane but I can’t solve it!

DevCube

Very insane shapeshifting puzzle.

Random noncuber

Cool like sq1. I CANT SOLVE IT

TheMaster

Im not gonna be one of thos people who immediatly say FIRST But this puzzle is intresting!

## NWorld

I did parity with it.## dsdcubing

very cool## Muja

I am playing with bcoz a non cuber broke my all cubes## mohammad

it was vary hard cuz i dont know how to solve sq-1 but i solve it and i cant wait for sq-1 to add## Man

I never thought it would be this easy! (just solved it by myself)## Man

I’ve been waiting for this!## MelonGuy44

Insane but I can’t solve it!## DevCube

Very insane shapeshifting puzzle.## Random noncuber

Cool like sq1. I CANT SOLVE IT## TheMaster

Im not gonna be one of thos people who immediatly say FIRST But this puzzle is intresting!## Write a comment!