What this is
This is a community solution guide for the DEF CON 34 SpyVSpy challenges. The goal is to show the useful clue, the method, and the answer without turning every puzzle into a long story.
What is missing
Rat Races are left out because they depended on live game state. Physical dead drops and the location-based scavenger hunt are listed, but cannot be rebuilt from the files we saved.
Fixing an entry
A good correction includes the challenge number, the steps that produce the answer, and any tool or chart needed along the way.