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Curious Cheetah

LITS

Background

This is a Nikoli original. It was originally Nuruomino, but the name was changed to refer to the nicknames for the four types of tetrominoes allowed by the rules.

Puzzle and Goal

An unsolved puzzle consists of a rectangular grid with regions drawn out.
The goal is to color in an orthogonally contiguous area.

Rules

The solved grid must satisfy the following conditions:

Other Names

Nuruomino

Playable Online