ThePuzzleLabs

Nonogram

Medium

Share

Play Medium Nonogram — ThePuzzleLabs

Try this Medium Nonogram puzzle on ThePuzzleLabs.

00:00
Classic
3
3
21
11
1
11
11
21
2
3

How to Play — Nonogram

Goal

Fill cells to reveal a hidden pattern. Numbers along each row and column indicate consecutive groups of filled cells.

Clues

A clue like 3 1 means there is a group of 3 filled cells, then at least one empty cell, then 1 filled cell.

Controls

  • Click — Fill or clear a cell (in fill mode)
  • Right-click — Mark a cell with × (definitely empty)
  • T — Toggle between fill and ×-mark mode
  • Arrow keys — Navigate the grid
  • Space / Enter — Fill selected cell
  • X — Mark selected cell with ×
  • U / Ctrl+Z — Undo
  • R — Reset puzzle
  • H — Use a hint

Tips

  • Start with rows/columns where the clue fills most of the line.
  • Use the overlap technique: the region where a group MUST be, regardless of position.
  • Completed clues are automatically struck through.

Reveal Solution?

This will show the complete solution. The puzzle will be marked as "solved with reveal" rather than self-solved.

About medium nonograms

Medium nonograms range from 5×5 to 10×10, with fill percentages around 40–60%. The 10×10 grids introduce multiple groups per line — clues like [2 3] or [1 1 2] — and overlap logic alone won't carry you anymore.

Edge logic becomes important here. When you know that the first or last cell in a line is filled, the corresponding clue group must start or end there. Extend it and mark the mandatory gap cell as X. These edge deductions often propagate across into crossing lines.

X-marking starts earning its keep at this level too. When all groups in a row or column are satisfied, mark every remaining empty cell with X. That information feeds into the columns (or rows) those cells belong to, often unlocking further deductions.

A good benchmark: clearing a 10×10 medium puzzle in under 3 minutes without hints. If you can do that, the hard grids are the next challenge. The grid size stays at 10×10 but the fill drops and clue complexity goes up.