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.

1. Every region must be orthogonally connected.
2. A region's area must equal the number written in its cells.
3. Regions with the same number may not touch orthogonally.
4. 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