# Chemical Samples

<figure><img src="/files/rbgpa9Cncj00wfVUvR9n" alt=""><figcaption></figcaption></figure>

This collection of samples is a sudoku puzzle in disguise with the 9 unique characters being

1 2 3 5 6 7 8 C E

Solving the sudoku by standard rules gives the grid below.

<figure><img src="/files/Exu6qkKjO86wpMoQaR7n" alt=""><figcaption></figcaption></figure>

Reading down the the highlighted diagonal gives the string EC2367518.  Formatting it with dashes as clued at the top of the grid and 8 7 cluing the final answer word lengths.

EC 236-751-8

Which is the registration number for **ALUMINUM NITRATE**


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://apeleaks.gitbook.io/leaks/docs-journal/journal-part-4/observatory/room-1-scientific-storage/chemical-samples.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.