> For the complete documentation index, see [llms.txt](https://docs.batching.ai/codecaching/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.batching.ai/codecaching/overview/puzzle-solving.md).

# Puzzle Solving

<figure><img src="/files/XLHUJkTClXUUFsZms2Cy" alt=""><figcaption></figcaption></figure>

* Solvers pay 1 Cookie to attempt solving a puzzle.
* The solver can view attributes such as difficulty, title, creator's wallet address, participation period, mood, and total reward.
* If no one solves the puzzle within the participation period (1 hours), the puzzle can be carried over to the next period.

### Valid answer&#x20;

* Find the hidden characters in the image.&#x20;
* Higher difficulty levels may include additional gimmicks.

```
a-z, A-Z, 0123456789, ~!@#$%^&()-=+[]<>?/
```