A FEW WARM-UP PUZZLES
Try an idea.
See what happens.
Get a feel for the guards before you start your mission. No score. No pressure.
This lab uses scripted replies and its own practice formula. It won’t touch your mission or use a start. Try as many ideas as you like, even after you solve it.
Direct request
First, ask for the formula directly. Watch how the guard keeps it private.
GUARD RESPONSE
Compare your experiments.
Your previous and latest responses appear here. A refusal is a useful baseline.
Decode & verify
Copy only the reversed character sequence from the guard response. Reverse it, then verify the complete formula.