✦ switchlark.A daily dose of logic
LITTLE PUZZLE. BRIGHT IDEA.

Make every
square shine.

One tap flips a tile and its neighbors.
Find the rhythm. Light up the board.

No clock. No pressure.
Just you and the next move.

TODAY’S CHALLENGE

Daily spark

4 × 4
Moves0
Lights on0 / 16
Your best—

Tap a tile. Its neighbors flip too.

Progress stays on this device.

THE SMALL PRINT, MADE SMALL.

A puzzle you can settle into.

Switchlark is a free browser game for curious minds. Every board can be solved. Start with a daily spark or keep going in practice mode.

0Puzzles solved here
∞Practice possibilities
A QUICK FIELD GUIDE

A tap changes the picture.

Tap any tile to flip its light. The tiles directly above, below, left, and right flip as well.

Your goal: light every tile. Tapping the same tile twice cancels its effect, and the order of taps doesn’t matter.

Use Undo to explore, Restart to begin again, or a hint when you get stuck. Hints are available freely.

Use arrow keys to move between tiles and Enter or Space to tap. Your scores are saved only in this browser.