Slide puzzle question

[Bob Sneidar]

I would love to give an out of parity Rubix Cube to one of those Rubix Cube savants and see how long it taked to figure out they cannot solve it! ;-P

Bob S


> On Mar 7, 2018, at 08:22 , Ralph DiMola via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> I don't know about the 9 puzzle but I suspect it's like the 15 puzzle. The
> 15 puzzle and Rubics Cube have parity. If the 15 is out of parity it can
> never be solved. The same for Rubics Cube, if you say switch 2 edge pieces
> or rotate 1 corner piece it's not solvable.
> 
> Ralph DiMola