On the chest keypad is a grid of numbered dots. The grid is comprised of a square shaped array of dots and contains lines that connect some pairs of adjacent dots. The answer to the code is the number of squares that are formed by these lines. For example, in the figure shown below, there are 3 squares: 2 small squares and...
CheckiO Extensions allow you to use local files to solve missions. More info in a blog post.
In order to install CheckiO client you'll need installed Python (version at least 3.8)
Install CheckiO Client first:
pip3 install checkio_client
Configure your tool
checkio --domain=py config --key=
Sync solutions into your local folder
(in beta testing) Launch local server so your browser can use it and sync solution between local file end extension on the fly. (doesn't work for safari)
checkio serv -d
Alternatevly, you can install Chrome extension or FF addon
checkio install-plugin --ff
checkio install-plugin --chromium