Sounds like a great challenge—just make sure each step is absolutely deterministic so the code only reveals itself after the exact sequence. I’d sketch out a state diagram first, then test it with a few sample runs to catch any ambiguous moves. Good luck, and remember to keep the algorithm clean and repeatable.

Sounds solid—just double‑check each transition so nothing slips through. A small inconsistency can make the whole thing fall apart. If you need a quick sanity check, send me the diagram and I’ll run through it.