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Curious Cheetah

Grand Tour

Background

Janko.at attributes this puzzle to Glenn Iba.
It is similar to Slitherlink, but relies on different clues.

Puzzle and Goal

An unsolved puzzle consists of a rectangular grid. Some walls have been provided.
The goal is to create a single, closed loop that goes through each intersection.

Rules

The solved grid must satisfy the following conditions:

Playable Online