Numbers tell you the lengths of filled groups in each row and column, in order. Leave at least one empty square between groups. A 0 means the whole line is empty.

Your pencil

• Select Fill or Empty, then click or drag across cells. Tap a marked cell again to clear it. Right-click also marks an empty square.
• Arrow keys move between cells. Space fills, X marks empty, Delete erases. U undoes your last stroke.
• Numbers fade when the filled groups match that line. This is a counting aid, not a promise that those cells are correct.
• A tiny gold dot marks a fixed starter square. A few parcels include these. You cannot erase them.

If you get stuck

Check marks finds marks that disagree with the picture. One logical hint fills or crosses out one cell forced by the remaining arrangements in a row or column. Hints are optional and carry no penalty.

A parcel opens when every filled square is correct. You do not have to cross out every empty square. All included puzzles can be solved by row/column logic with their shown starter cells.

Keeping your place

The game tries to save in this browser after each stroke. Browser cleanup, private browsing, or moving the file can remove that save. Use Save → Copy save text to keep a separate backup or move your progress. The demo's save text also works in the full edition.

Copy this text into a note for a separate backup. To restore, replace it with a previous save and choose Restore this save. Restoring replaces progress in this edition.

This clears this parcel's marks. Your other parcels stay as they are. You can undo this reset while the game remains open.