✳ Tiny Joy Lab

Lens Labyrinth

48 original optical puzzles across six chapters of mirrors, colour splitting, mixing, sensor gates and absorption. Connect exact-colour receivers with limited equipment, or try a separate daily puzzle.

Rules

  1. Every diamond receiver needs exactly its marked colour. Circle, triangle and square mean red, green and blue. Combined symbols show mixed colours; beam line patterns also differ. Crossed dark ports must receive no light.
  2. Only dashed mounts can change. Tap one to cycle through empty and two mirrors, or select a tool below before tapping a mount. Diagonal mirrors turn beams 90 degrees. Equipment limits are shown above the board.
  3. A prism reflects its marked colour along its diagonal and sends other colours straight ahead. Filters pass only marked colours and absorb the rest. Beams crossing on an ordinary tile do not mix.
  4. A mixer combines all incoming colours and emits along its arrow. Red and green make yellow; red and blue make violet; green and blue make cyan; all three make white. Extra colours also make a receiver incorrect.
    How it works: Mirrors turn beams. Prisms reflect their marked colour and pass the rest straight. Mixers combine incoming colours along their arrow.
  5. A numbered sensor opens its matching gates when incoming light includes all its required colours. Sensors transmit light and must all be lit. Absorbers stop every colour and protect crossed dark ports.
  6. Each chapter has eight puzzles; complete all eight to unlock the next. Replay any open chapter. Two hints per attempt show one mount and setting without placing it. Undo and redo retain 120 steps; resetting asks first.
  7. The UTC daily selects a fixed verified layout with separate progress and records. Stars are optional, and hints never block completion. Rules, hidden pages and restored saves pause play until you resume. Progress stays on this device.

How it works