Nonogram (Picross) | Create & Share Puzzles — Tiny Desk

What is a nonogram?

A nonogram — also called Picross, Griddlers, or picture logic puzzle — is a picture-logic puzzle. The numbers along each row and column tell you how many consecutive cells to fill in that line (with at least one blank cell between separate blocks). Fill in cells to satisfy every clue, and a hidden picture emerges.

How to use it

① Left-click to fill, right-click to mark ✕

Left-click cycles a cell through empty → filled → ✕ → empty. Right-click toggles directly between empty and ✕. You can also drag with the left button to paint multiple cells at once.

② Solve using the hint numbers

When a row or column's fill pattern matches its clue, that clue turns gray — an easy way to see at a glance which lines you've already solved.

③ Create your own puzzle and share it via URL

In Create mode, draw a board and give it a title, then click Copy Link to get a URL with the puzzle data embedded in it. While creating, you can also check whether it's solvable by logic alone, without guessing.

What makes this tool different

• Share a puzzle you made with a single URL — no account or server storage needed
• Check while creating whether the puzzle is solvable by logic alone, without brute-forcing
• Supports large boards up to 50×50
• Drag to paint multiple cells; your progress is saved automatically in the URL
• Completely free, no sign-up

Frequently asked questions