JGOWorlds to explore

Crack the hidden colour sequence in a limited number of guesses.

Available External game
Open Guess Discover the game
Rows of colourful pegs and small light and dark feedback markers appear with the Guess title.

The game world

Discover Guess

Build a row of coloured pegs and submit it. The feedback tells you how many pegs have the right colour in the right slot and how many have the right colour in a different slot. Compare guesses to narrow down the possible sequences. You can adjust the number of colours, the code length and the number of guesses. James Harvey contributed this version to Simon Tatham’s collection.

Original wordmark and artwork by JGO.

Your adventure starts here.

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

Open Guess