Solvable Nonogram Studio / ノノグラムスタジオ
Draw pixel art and test whether it's a uniquely solvable nonogram puzzle. This tool generates row/column clues, verifies uniqueness, highlights ambiguous regions, and auto-suggests the minimal edits needed to fix them—all in one interface where you can play or share the result.
This shizuku is written in Java, compiled to run in the browser.
How to use
- Draw pixel art on the grid by clicking to add or remove colors (color and eraser tools included).
- Click “Verify” to check whether the puzzle has a unique solution.
- Regions highlighted in red can be solved multiple ways. Click “Show suggestions” to see computer-generated fixes.
- Edit the grid—accept the suggestions, make your own adjustments, and re-verify as needed.
- Once satisfied, “Play” to solve it yourself, or “Share” with others.
Creating nonogram puzzles is intuitive, but validating uniqueness is computationally heavy. This tool handles the complex verification, so you focus entirely on puzzle quality.