Is every Beamline board solvable?

Yes. Each board is built from a known solution and re-checked by a light tracer before you see it.

What do white crystals need?

Both beams — amber and cyan — must pass through a white crystal at the same time.

Beamline

A light-routing puzzle with a twist: two colored beams. Tap mirrors to flip them and steer amber and cyan light onto matching crystals — white crystals need both beams at once. Five hand-generated boards per run, timed.

Play Beamline — free, no download.

What makes it different

Two colours of light: white crystals only light up when amber and cyan cross them together.
Every board is generated backwards from a solution and verified by a beam tracer — never impossible.
Five timed boards per run, plus a Daily everyone shares.

How to play

Tap a mirror to flip it between / and \.
Amber crystals need amber light, cyan crystals need cyan light.
White crystals need BOTH beams passing through them.
Light every crystal to clear the board. Clear 5 boards as fast as you can.

Controls

Touch: Tap a mirror to flip it
Desktop: Click a mirror to flip it

Questions

Is every Beamline board solvable?: Yes. Each board is built from a known solution and re-checked by a light tracer before you see it.
What do white crystals need?: Both beams — amber and cyan — must pass through a white crystal at the same time.

If you like Beamline

Grid Paint — Paint by logic. A pixel creature appears when you solve it.
Nine — Number-place logic, rebuilt: hints that explain themselves.
Sweep — Mine logic with zero luck. Every board is solvable without guessing.
Pressure Pop — Bubble wrap with chain reactions.