Pixel Oracle · Nonogram
15×15 Nonogram puzzles
A 15×15 Nonogram supports longer multi-run clues and deeper chains of row-to-column consequences. Solve it as a sequence of verified local deductions rather than trying to recognize the hidden image early.
Fifteen-cell clue scale
A line may contain several runs whose lengths plus mandatory gaps consume most of the fifteen cells. Compare the line's remaining capacity with its clue total, then revisit it whenever crossing lines close a candidate interval.
Readable large-board control
Use zoom and pan when a clue or target cell needs more space, and finish touch edits on release so navigation does not become an accidental fill. Keep X marks around completed runs to preserve boundaries across the larger grid.
Long-form reasoning path
Work in passes: secure high-information lines, propagate their crossings, close completed runs, and rescan unresolved intervals. A logic-only hint should identify the next provable line or cell, not reveal the picture or replace this cycle.