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Curious Cheetah

Kakurasu

Background

This puzzle originated in Japan. Unlike most of the grid-based puzzles, it requires basic math skills.

Puzzle and Goal

An unsolved puzzle consists of a square grid of size <em>n</em>. Along the top and left side (or bottom and right) are the numbers from 1 to <em>n</em> for reference; along the bottom and right (or top and left) are the clues.
The goal is to color in some of the cells to satisfy the clues.
Kakurasu initial statespacerKakurasu solution

Rules

The solved grid must satisfy the following conditions:

Other Names

Feldersummenrätsel

Playable Online