How to play
- Goal
- Divide the whole board into straight one-cell-wide strips of length 1–4, matching any clue inside a strip, keeping equal-length strips from sharing an edge, and avoiding four strip corners at one point.
- How it ends
- The chart is won when every cell belongs to a valid strip, no strip contains more than one clue, adjacent strips have different lengths, and no four-way seam remains; Undo repairs placements.
- Record
- Your first unassisted solve of each chart is kept in this browser; verified solves under twenty-four hours compete for fastest-time records. Replays are practice.
- Cover every cell with a straight strip one cell wide and one to four cells long.
- A strip may contain no clue, or one clue matching its length. Two clues cannot share a strip.
- Different strips of equal length cannot share an edge. They may meet diagonally.
- Four different strips cannot meet at a single grid corner.
- Select the two ends, or drag between them. Select a cell twice for a singleton. Erase removes an entire strip. Undo repairs placements; Restart requires confirmation and keeps the first clock running.
Controls
| Tap two ends / drag | Place a straight strip; select the same cell twice for a singleton |
|---|---|
| Arrows; Enter / Space | Move the cursor; choose each endpoint |
| Erase; Delete / Backspace | Remove the selected strip |
| Z / Y; Undo / Redo | Withdraw or restore a placement |
| Escape | Cancel a draft, close a dialog or return to the atlas |
| Controller | D-pad moves; A chooses ends or confirms; X erases; B cancels or returns; shoulders Undo/Redo; Start tools; Back rules |
Tips for Firumatto
- Start with ones A clue of one must stand alone.
- Use blank strips Not every strip needs a clue.
- Watch the seams Keep equal lengths apart along edges, and avoid four distinct corners meeting.
Questions about this game
Can a strip have no number?
Yes. It may have zero clues or one clue matching its length.
Can equal lengths touch diagonally?
Yes. Only sharing an edge is forbidden.
Does the whole mosaic need to connect?
Every cell is covered, but there is no additional connectivity rule.
Can replay improve my first time?
No. Your first completed time is retained; replay is untimed practice.
All charts are open. Progress saves in this browser; a reloaded attempt finishes locally on its original clock.
Watch how to play
About Firumatto
Fit a mosaic of straight strips in a lamplit library. Numbered strips name their length; unnumbered strips complete the gaps.
All 160 original charts are open, from four by four to six by six. Each has one independently verified solution.
Your first completed time stays with each chart. An uninterrupted verified first solve under twenty-four hours on the game page can claim the named best; replay is untimed practice.
