Private, browser-local utility

Nonogram Solver

Solve bounded Nonogram and Picross puzzles from row and column run clues entirely in your browser.

Use one line per row or column. Separate runs with spaces. Use 0 for a blank line.

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Constraint method and limits

V1 supports rectangular 5×5 through 20×20 grids. It generates every valid pattern for each clue line, propagates forced cells, then branches on the most constrained line. Search stops after two solutions or 100,000 nodes and reports unique, multiple, unsatisfiable, invalid, or search-limit state without overstating certainty.

Browse Puzzle Tools.