#644 — Tue, Oct 6, 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 #644
Nonogram #644 appeared on Tue, Oct 6, 2026 as hard difficulty on a 25x25 grid. Its solution fills 321 of 625 cells — 51% density, a balanced picture with roughly as much ink as empty space. The clues break down into 107 runs across all rows and columns. The longest single run is 20 cells, in row 22, and the busiest line is column 18 with 4 separate runs to place. Like every daily here, it has exactly one solution reachable by logic alone.
Clues for puzzle #644
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 |
| 4 | 2 3 4 |
| 5 | 9 6 1 |
| 6 | 5 16 |
| 7 | 5 11 1 |
| 8 | 3 4 3 |
| 9 | 1 3 2 |
| 10 | 4 |
| 11 | 9 2 |
| 12 | 16 |
| 13 | 19 |
| 14 | 5 10 |
| 15 | 4 6 2 |
| 16 | 5 7 3 |
| 17 | 16 4 |
| 18 | 3 13 4 |
| 19 | 2 12 3 |
| 20 | 12 3 |
| 21 | 12 4 |
| 22 | 20 |
| 23 | 20 |
| 24 | 3 11 |
| 25 | 2 |
| Line | Clue |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 7 |
| 4 | 4 7 |
| 5 | 6 6 2 |
| 6 | 5 7 4 |
| 7 | 3 3 9 |
| 8 | 3 3 8 |
| 9 | 3 3 8 |
| 10 | 6 13 |
| 11 | 6 13 |
| 12 | 19 |
| 13 | 19 |
| 14 | 20 |
| 15 | 5 16 |
| 16 | 4 4 9 |
| 17 | 4 3 7 |
| 18 | 5 3 3 3 |
| 19 | 5 4 3 |
| 20 | 4 1 1 3 |
| 21 | 2 1 4 4 |
| 22 | 1 10 |
| 23 | 3 9 |
| 24 | 1 7 |
| 25 | 1 |