#641 — Sat, Oct 3, 2026
Past puzzle — replay any time. Does not affect your streak.
A free nonogram (picross) puzzle, fresh every day. Use the row and column number clues to fill in the correct cells.
About puzzle #641
Nonogram #641 appeared on Sat, Oct 3, 2026 as hard difficulty on a 20x20 grid. Its solution fills 148 of 400 cells — 37% density, a fairly open picture where empty cells do a lot of the work. The clues break down into 64 runs across all rows and columns. The longest single run is 16 cells, in column 12, and the busiest line is column 16 with 3 separate runs to place. Like every daily here, it has exactly one solution reachable by logic alone.
Clues for puzzle #641
Each clue lists the lengths of the filled runs in that line, in order, with at least one empty cell between runs. A clue of 0 means the line is empty.
| Line | Clue |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 3 |
| 4 | 5 3 |
| 5 | 7 |
| 6 | 9 |
| 7 | 12 |
| 8 | 4 4 |
| 9 | 2 5 |
| 10 | 9 |
| 11 | 3 10 |
| 12 | 9 3 |
| 13 | 9 |
| 14 | 10 |
| 15 | 9 |
| 16 | 6 |
| 17 | 4 2 |
| 18 | 9 |
| 19 | 2 2 |
| 20 | 1 |
| Line | Clue |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 2 |
| 6 | 7 4 |
| 7 | 7 4 |
| 8 | 6 4 |
| 9 | 4 5 |
| 10 | 4 5 |
| 11 | 3 8 |
| 12 | 16 |
| 13 | 14 |
| 14 | 7 5 |
| 15 | 5 1 |
| 16 | 2 3 1 |
| 17 | 4 3 3 |
| 18 | 3 3 3 |
| 19 | 3 1 |
| 20 | 2 |