Receivers—
Moves—
Par—
Time—
Click to turn · Arrows select · Enter rotates
01 / Learn
Follow the beam
Light leaves the source marked S in a straight line. Tap a mirror to turn it. Slash and backslash mirrors reflect in different directions. You can also select mirrors with arrow keys and turn them with Enter.
02 / Adapt
Think in branches
Later levels introduce splitters, marked with a diamond. They let light continue straight and send a second beam at a right angle. Every receiver must be lit at once.
03 / Master
Find the elegant solution
Complete within the displayed par, without hints or undo, for three stars. There is no time limit. Use Undo or a hint whenever you need a fresh perspective. Assist highlights a mirror that needs turning.