Quiet Grids, in eighteen seconds.

Eleven kinds of logic grid in one calm app for Android, and a new puzzle of each every day. Lines follow your finger as you draw. The film is drawn and scored in code, right here in your browser, from puzzles the app really carries.

Sound starts only after you tap. It pauses when you scroll away.

What the film shows.

  1. A finished Paths grid on a white card: five coloured paths join their numbered pairs and fill every square. A soft light runs across it. The name Quiet Grids and the lines: Draw, reason, solve. No countdowns, no rush.
  2. The long yellow path unwinds back to where it started. Herons, also called Numberlink. Join each pair and fill every square.
  3. A finger draws the last path along the bottom, up the right edge and across the top to its twin, one note higher for every square. The grid is solved and the app's chime plays.
  4. Cranes, also called Hashi. Each island takes the number of bridges it shows. The 4 in the top right corner has only two neighbours, so both of them get double bridges: the finger draws the same stroke twice and the corner island and its neighbour below turn green.
  5. Magpies, also called Nonogram. The clues count the filled blocks in order. The bottom row and the right column both say 8, so the finger fills each of them from end to end, and a light runs along each finished line.
  6. Eleven logic puzzles a day: Badgers, Hares, Squirrels, Cranes, Swans, Magpies, Herons, Voles, Otters, Hedgehogs and Dormice, each beside its classic name and its mark.
  7. The finished Paths grid again. Quiet Grids. Draw, reason, solve. No countdowns, no rush. Coming soon to Google Play. arling.sk

The three boards are puzzles the app carries: Herons of 2 September 2026, Cranes of 26 August 2026 and Magpies of 24 August 2026. The double bridges are the first step of the app's own worked out hint for that board, and the last yellow path is the only way the Herons board can be finished. Colours, lines, the stroke under the finger, the light over a finished line, the animal marks and the soft mallet sounds follow the app's code. The finger and the film's own music are ours. The animal marks in the film are the simple ones the app draws in code; the app itself shows hand drawn animals.

About Quiet Grids.

Quiet Grids: 11 Logic Games is our puzzle app for Android. At midnight UTC it lays out eleven fresh boards, one of each kind: killer sudoku, anti-knight sudoku, kakuro, hashi, masyu, nonogram, numberlink, nurikabe, slitherlink, star battle and a logic grid. Every board has exactly one answer, checked by a solver before the app was packed, and the last thirty days stay open in the calendar. Check and Hint are free and never fill a square in for you. The puzzles travel inside the app, so nothing needs the internet to play, and there is no account.

Quiet Grids is coming soon to Google Play. It is not in the store yet, so there is no store link on this page. Its privacy policy is already published. Until then, our free daily logic puzzles run in your browser today.

How the film is made.

There is no video file on this page. Every frame is drawn on a canvas by a small script, and every sound is synthesised by Web Audio in your browser after you tap. The app's own three sounds, a soft wooden mallet, are rebuilt from the same recipe that made them and played at the same pitches the app uses. No screen recording, no photo, no picture generator. The same script renders the film frame by frame into videos for YouTube and Instagram.

It is built to be light: what does not move is drawn once and reused, the film stops when it ends, when you scroll away or switch tabs, and it shows a still picture if your device asks for reduced motion. The Nunito font is used under the SIL Open Font License. Questions: andrej@arling.sk.

Our anonymous statistics (self-hosted Umami) count the page visit and whether the film was started, replayed or its coming soon line was clicked. Nothing else.