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Shirokuro
Logic & Grid

Shirokuro

4.1/5 158.7K plays 1,912 reviews 2026-01-01 released

A Nikoli-style line connection puzzle. Connect each white circle with a black circle via a horizontal/vertical line. Lines may not cross other lines and may not pass through other circles. 30 levels across 5 difficulty t

▶ Play now Platform: Browser

Source: GameZipper · Games hosted by GameZipper / PlayKovo

About this game

A Nikoli-style line connection puzzle. Connect each white circle with a black circle via a horizontal/vertical line. Lines may not cross other lines and may not pass through other circles. 30 levels across 5 difficulty tiers from 5x5 Beginner to 9x9 Expert.

How to play

How do you play Shirokuro?

Connect each white circle with a black circle by drawing a horizontal or vertical line between them. Each line may use one or more 90-degree turns, but lines cannot cross other lines and cannot pass through other circles. Each circle is the endpoint of exactly one line.

How many levels does Shirokuro have?

30 levels across 5 difficulty tiers: Beginner (5x5), Easy (6x6), Medium (7x7), Hard (8x8), and Expert (9x9).

Is Shirokuro free to play?

Yes! Shirokuro is completely free to play online in your browser. No download required.

How to play

How do you play Shirokuro?

Connect each white circle with a black circle by drawing a horizontal or vertical line between them. Each line may use one or more 90-degree turns, but lines cannot cross other lines and cannot pass through other circles. Each circle is the endpoint of exactly one line.

How many levels does Shirokuro have?

30 levels across 5 difficulty tiers: Beginner (5x5), Easy (6x6), Medium (7x7), Hard (8x8), and Expert (9x9).

Is Shirokuro free to play?

Yes! Shirokuro is completely free to play online in your browser. No download required.