
Game appears to generate impossible puzzles, like the one pictured.
https://www.cs.princeton.edu/courses/archive/spr18/cos226/assignments/8puzzle/in...
These lecture notes detail how to detect impossible slide puzzles.

Game appears to generate impossible puzzles, like the one pictured.
https://www.cs.princeton.edu/courses/archive/spr18/cos226/assignments/8puzzle/in...
These lecture notes detail how to detect impossible slide puzzles.