I am curious to see your code when it was not passing to understand why. Would you like to share it? You could help me make this kata better.

It is not easy from the tests understand why your solution is wrong. Now, the error messages should be more helpful. They will always tell you if the prisoners made an assertion too early or if they didn't make any. Anyway, if you read that message it means that your solution is probably not respecting some of the conditions in the Notes section. Let me know if you still have problems finding out what is wrong.

The current error messages are not great, hopefully they will be fixed soon. It probably just means that your solution is wrong.