JGOWorlds to explore

Find the hidden dominoes in a grid of numbers by using each pair exactly once.

Available External game
Open Dominosa Discover the game
Three tilted dominoes on a purple grid with Dominosa in cream lettering.

The game world

Discover Dominosa

The board shows the numbers from a set of dominoes with their outlines hidden. Pair two adjoining squares to reveal a tile. Every number combination, including doubles, occurs once in the set. Start with pairs that have few possible positions and work out the rest until the whole grid is covered.

Original wordmark and artwork by JGO. This version is part of Simon Tatham’s Portable Puzzle Collection.

Your adventure starts here.

JavaScript and WebAssembly. The official site documents Chrome, Firefox and Safari.

Open Dominosa