Making the Polybius Square
Checkerboard Encryption and Decryption

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Sources:
Polybius: [ Ссылка ]
The Code Book: [ Ссылка ]

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The Black Chamber can be found at:
Blog: [ Ссылка ]
Twitter: [ Ссылка ]
Patreon: [ Ссылка ]

Additional Resources:
American Cryptogram Association: [ Ссылка ]

The material appearing in this video is (c) Curtis Howard Hoffmann, 2021, unless otherwise noted.
This video can not be reused or repurposed without the explicit written permission of Curtis Howard Hoffmann. Requests for permission can be made in the comments, or from the About page on the Black Chamber blog.

Cast:
The Chief: Curtis Hoffmann

Editing, direction, sound, error generation:
Curtis Hoffmann

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