A little light goes a long way.
↑ ↓ ← → movespace switchor tap a piece & a square
Every path begins with a first step.
Follow the crossings in order, or wander a little. Every level is open.
Bring the keeper to the arch. Gather every spark along the way.
It glides in a straight line until it meets stone, a shutter, the keeper, or the edge. Its last glide becomes a bridge.
Move one square at a time on stone or the glowing bridge. The two pieces cannot share a square.
The old bridge fades when the light moves. Get the keeper onto stone before making a new one. The game will stop you from falling.
Later, the keeper can stand on a marked counterweight to raise matching shutters. Use these as new stopping points for the light. Step off, and they sink again.
No clock. No lives. Every move can be undone.