About this site

Just Puzzles is a series of logic puzzle apps by Kai Kunze. Each one teaches its puzzle: the techniques have names, the hints make an argument, and no board ever needs a guess.

This site runs the same puzzle engines in the browser. A board made here from a given seed is the board the apps make from it, and today's room is the same room everywhere.

What is kept

Your boards, times and progress are stored in this browser only. There is no account, no advertising and no tracking, and the site works without a connection once it has loaded. More on privacy.

The apps

• Just Shikaku: divide the room into rectangles
• Just Hashi: learn to build the bridges
• Just Kakuro: learn the crossword of sums
• Numeriqo: cages, sums and a Latin square

The other games are on their way to the App Store.