▦ Nonogram Coach

Calm picture-logic puzzles

Turn number clues into pictures.

Stuck? Learn why a square is safe with a short logic exercise below. Then try Cat, Sailboat, and Heart free in Nonogram Coach: Picross, with Coach hints that explain your next move. No ads. No timers. On iPhone or iPad.

Try one logical move · no download needed

Website teaching example—not an app screenshot.

Which square is always filled?

A clue of 3 means three filled squares together in this five-square row. Tap the square that must be filled, wherever the group starts.

You can also reveal the explanation below.

Show why the middle square is safe

The group can start in only three places. Square 3 is filled in every placement. This is overlap: fill the middle square, but leave the others undecided—not marked empty.

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This is one teaching example, not a solver for your own puzzle.

Keep learning on iPhone or iPad

No ads. Optional one-time Premium unlock.

Learn nonograms and picross

Understand the clues, one step at a time

Start with the rules, then explore overlap and other ways to find a move without guessing.

Built for a quiet first session

Try the free pictures first. Keep your progress on your device, with no account required. More puzzles are available through an optional one-time Premium purchase—not a subscription.

Guided beginner boards

Start small. The coach points to a row or column where logic is available instead of dropping players into a dense grid.

Undo-first recovery

Mistakes and experiments should be recoverable. Calm play matters more than timers, streak pressure, or punitive interruptions.

Local-first and no account

Progress stays on your device. Play without ads, timers, lives, or streak pressure.

Here when you need help

Questions before your first puzzle?

Find help with the app and read how your information is handled. No account is needed to play.