Is there any way to get the generated puzzle and make the 15 puzzle to n-puzzle ?

[afkcodes]

Thanks for the amazing work i used it to play some games and loved it. I am trying to make some puzzle games for which i am trying out some ideas. So is there any way to get the puzzle string also can we make it n-puzzle style like

20-puzzle or
30-puzzle where there will be 30 blocks that needs to be solved or similar