CASE 002
Intermediate
Between the Characters
A machine-visible message carried by invisible Unicode characters.
Technique family
Unicode
Hidden information carried by code-point distinctions, invisible format characters, and visually subtle separators.
How this family works
Unicode challenges focus on the exact character sequence rather than only the glyphs on screen. Inspect code points, normalization behavior, and whitespace distinctions.
Challenges
CASE 007
Advanced
Space Between Nodes
Two visually similar separators form a binary channel.