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Curious Cheetah

Fillomino

Background

This puzzle appears to be a Nikoli original.

Puzzle and Goal

An unsolved puzzle consists of a rectangular grid with numbers placed in it.
The goal is to create regions such that each cell is contained in one region.
Fillomino initial statespacerFillomino solution

Rules

The solved grid must satisfy the following conditions:

Variants

In Trinudo, numbers are limited to 1 to 3.

Other Names

Allied Occupation; Filling; Nikoji; Trinudo

Playable Online