Blackout

The lights went out. Someone saw the impossible.

Your role

Evidence is a system. Read it like one.

Rebuild power states and sight lines to expose the witness whose story cannot be true.

First-case tutorial

What you actually do

  1. Map witness and target rooms.
  2. Apply the printed lighting and geometry rule.
  3. Find the single statement that fails.

Formal rules

  • Sight may follow a row, column or perfect diagonal.
  • The target room must be illuminated.

Cases in this family rotate through multiple reasoning archetypes, so higher difficulty changes the deduction structure rather than simply adding more rows.

Light LineDiagonal Emergency GridBlocked LineRange Line
Blackout | Solve House