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Hashiwokakero - Logic Puzzle
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Hashiwokakero

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description Hashiwokakero Overview

Hashiwokakero, meaning 'build bridges' in Japanese, is a grid-based logic puzzle published by the Japanese puzzle company Nikoli and also known by the English name Bridges. The puzzle consists of a grid containing numbered circles representing islands, where each number indicates the total bridges connecting to that island. Players draw horizontal or vertical bridges between islands, with at most two bridges per pair, no bridge crossings, and all islands forming a single connected group. The puzzle has appeared in Nikoli publications since the 1990s.

help Hashiwokakero FAQ

What are the basic rules of Hashiwokakero?

In Hashiwokakero, players must connect islands marked with numbered circles using horizontal or vertical bridges. The number on each circle indicates exactly how many bridges must connect to that island, with a maximum of two bridges allowed between any single pair of islands.

What does the name Hashiwokakero mean?

The name translates to 'build bridges' in Japanese, which perfectly describes the puzzle's core mechanic. It is published by the Japanese puzzle company Nikoli and is frequently referred to internationally by the English name Bridges.

Are bridges in Hashiwokakero allowed to cross each other?

No, bridges in the puzzle cannot cross each other or pass over existing islands. This strict spatial constraint forces players to plan their routes carefully to ensure all islands form a single, continuous connected group.

Who published the Hashiwokakero puzzle?

Hashiwokakero was popularized by Nikoli, the same Japanese company that helped bring Sudoku and Slitherlink to a global audience. It has since become a staple in printed puzzle anthologies and digital logic game collections.

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