Nonograms
0% of cells marked
How to read it
Row and column numbers give the length of each run of filled cells, in order, with a gap between runs. Pick Fill or X, click a cell to mark it, click again to clear it. Right-click applies the other tool.
Deductions: 0
Guesses: 0
Backtracks: 0
How the Solver Works
- Each cell is a variable that can be filled or empty.
- Each row and column clue is a constraint on the cells in that line.
- Constraint propagation compares every pattern still consistent with a clue and fills in whatever they all agree on.
- When propagation alone can't finish the puzzle, the solver guesses a cell — and backtracks if that guess leads to a contradiction.