Fillomino
Grow orthogonally connected regions until each region contains exactly the number written in its cells.

How to Play
Each number belongs to a region whose area must match that number. Grow and merge regions until every filled cell belongs to a valid orthogonally connected group.
- Every region must be orthogonally connected.
- A region's area must equal the number written in its cells.
- Regions with the same number may not touch orthogonally.
- Given cells are fixed and cannot be changed.
Controls
| Key | Action |
|---|---|
| Arrow keys / WASD / hjkl | Move cursor |
| Mouse left-click | Focus a cell |
1-9 |
Place number |
Backspace / Delete |
Clear cell |
Ctrl+R |
Reset puzzle |
Ctrl+H |
Toggle full help |
Escape |
Return to main menu |
Modes
| Mode | Size | Notes |
|---|---|---|
| Mini 5x5 | 5x5 | Fast intro board |
| Easy 6x6 | 6x6 | Gentle deduction |
| Medium 8x8 | 8x8 | Balanced board |
| Hard 10x10 | 10x10 | Longer chains |
| Expert 12x12 | 12x12 | Broad region planning |
Quick Start
puzzletea new fillomino
puzzletea new fillomino "Medium 8x8"
puzzletea new fillomino "Hard 10x10" --with-seed sample-seed