// OPERATOR BRIEFING
Each day a new encrypted signal arrives at 00:00 UTC. Your mission: decode it before it fades.
01
// INCOMING SIGNAL
- The grid is 5×5. A signal beam enters from one edge.
- You can see where the beam enters and where the receiver is located.
- The mirrors inside the grid are already positioned — you need to rotate them.
02
// ROTATE & REDIRECT
- Tap any mirror to rotate it 90 degrees.
- Mirrors redirect the beam: \ reflects one way, / reflects the other.
- Rotating costs nothing. Only firing the TEST SIGNAL uses one of your 6 attempts.
03
// COMPLETE THE CIRCUIT
- Once you think the beam path is correct, fire TEST SIGNAL.
- The beam travels and you see where it goes. Adjust and retry.
- Solve with fewer attempts for a higher score.
// SCORING PROTOCOL
ATTEMPTS USED RANK
1 SIGNAL DECODED — PERFECT
2–3 STRONG DECODE
4–5 WEAK DECODE
6 SIGNAL RECOVERED
0 remaining SIGNAL LOST
// ADVANCED PROTOCOLS
- > Track the entry and exit angles — they constrain the solution.
- > Start from both ends — work backwards from the receiver.
- > A mirror that doesn’t change the beam’s path is likely not on the critical path.
- > Some puzzles have decoy mirrors — not all mirrors need to be used.