1# Fillomino23Grow orthogonally connected regions until each region contains exactly the number written in its cells.4567## How to Play89Each number belongs to a region whose area must match that number.10Grow and merge regions until every filled cell belongs to a valid orthogonally11connected group.12131. Every region must be orthogonally connected.142. A region's area must equal the number written in its cells.153. Regions with the same number may not touch orthogonally.164. Given cells are fixed and cannot be changed.1718## Controls1920| Key | Action |21|-----|--------|22| Arrow keys / WASD / hjkl | Move cursor |23| Mouse left-click | Focus a cell |24| `1`-`9` | Place number |25| `Backspace` / `Delete` | Clear cell |26| `Ctrl+R` | Reset puzzle |27| `Ctrl+H` | Toggle full help |28| `Escape` | Return to main menu |2930## Modes3132| Mode | Size | Notes |33|------|------|-------|34| Mini 5x5 | 5x5 | Fast intro board |35| Easy 6x6 | 6x6 | Gentle deduction |36| Medium 8x8 | 8x8 | Balanced board |37| Hard 10x10 | 10x10 | Longer chains |38| Expert 12x12 | 12x12 | Broad region planning |3940## Elo Difficulty4142Named modes are compatibility presets. Use `--difficulty <0..3000>` to target a43specific Elo difficulty for generated puzzles.4445## Quick Start4647```bash48puzzletea new fillomino49puzzletea new fillomino "Medium 8x8"50puzzletea new fillomino "Hard 10x10" --with-seed sample-seed51```