JGOWorlds to explore

Complete a two-colour grid by deducing where each tile belongs.

Available External game
Open 0h h1 Discover the game
A grid of turquoise and orange tiles with empty spaces beneath the title 0h h1.

The game world

Discover 0h h1

Fill each empty tile with one of two colours. Every row and column needs an equal share of each colour. Runs of three are forbidden, and no row or column may repeat. Pick a grid size in free play or try the daily puzzles. Martin Kool created this Takuzu-inspired puzzle for Q42.

Original wordmark and artwork by JGO.

Your adventure starts here.

JavaScript. Designed for mouse and touch input. Interface available in English, Dutch, Spanish and Korean.

Open 0h h1