Slide puzzles on the internet.

• Windows applications.
• Java applets.
• CGI applications.
• JavaScripts.

Windows applications.

• the one that can solve itself.
  • Download NOW! It's free!
• It appears that the above one is not the only one that can solve itself. There are others with a build in solver.
• https://www.microsoft.com/en-us/p/15-puzzle/9wzdncrfjx4j#activetab=pivot:overviewtab
• https://www.microsoft.com/en-us/p/15-puzzle/9wzdncrdnfzf#activetab=pivot:overviewtab
• https://www.microsoft.com/en-us/p/slider-puzzle/9wzdncrfjvdp?activetab=pivot:overviewtab
• https://www.microsoft.com/en-us/p/sliding-puzzle-free/9nblggh08z8x#activetab=pivot:overviewtab
• ...

Java applets.

• the one that can solve itself.
  • Play it NOW!
• It appears that the above one is not the only one that can solve itself. There are others with a build in solver.
• Sam Loyd's classic 14-15 puzzle. With a link to the history of this puzzle.
•  ...

JavaScript.

• A simple one including source code.
• There are many more or less the same than the example above.
• ...