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Curious Cheetah

Patchwork

Background

The origin of this puzzle is not known.

Puzzle and Goal

An unsolved puzzle consists of a square grid divided into 1xN shaped regions, where N is a factor of the size of the grid.
Some of the cells contain number clues.
The goal is create fill in each region with the numbers 1 to N, according to the clues.

Rules

The solved grid must satisfy the following conditions:

Other Names

Tatami

Playable Online