Everyone has tried solving a crossword puzzle at some point in their lives. We're going to mix things up by adding a cipher to the classic puzzle. A cipher crossword replaces the clues for each entry with clues for each white cell of the grid. These clues are integers ranging from 1 to 26, inclusive. The objective, as any other crossword, is to determine the proper letter for each cell. In a cipher crossword, the 26 numbers serve as a cipher for those letters: cells that share matching numbers are filled with matching letters, and no two numbers stand for the same letter. All resulting entries must be valid words.
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