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✓ Completed on this device · New puzzles unlock at midnight New York time.

How to play

Hit every target with a laser beam of the same color. A target must not be hit by a beam of a different color, even if a matching beam also hits it.

1. Place / rotate. Select a piece, then a socket. Tap mirrors or splitters to rotate; hold a placed piece to remove it.
2. Mirror. Reflects beams 90°.
3. Splitter. Splits a beam into two, one that passes through and one that reflects 90°.
4. Prism ◇. Sends light straight and changes its color: red → green → blue → red.
5. Colored mirrors. Red, green, and blue mirrors reflect only their matching color; the other colors pass straight through.

Targets absorb all light. Walls and sources block light. Colors do not mix. Every piece must be used. Colored mirrors must reflect their matching color at least once.

Puzzle workshop

Generate a reproducible puzzle, or import a puzzle JSON to check its rules and search for a unique solution.

Every generated puzzle is exhaustively checked for exactly one solution.