Show HN: Claude created an "unsolvable" puzzle, but you can solve it

I had Claude (Sonnet 3.5 New) create a sliding puzzle, and I noticed it added code to make sure it is solvable. I asked about it and it explained that without it, the puzzle would be unsolvable. Its explanation didn't make too much sense for me so next I had Claude create an unsolvable version. I was able to solve it, so I changed it to include a congratulations message.

Go ahead and try to solve this "unsolvable" puzzle. You should be able to succeed!

https://claude.site/artifacts/2bbdfb89-da23-4de0-a047-e6c8b1...