Welcome to , your Go Pairing Engine!

What is ?

At its core, is a versatile Go tournament pairing engine designed to make your tournament experience effortless. is the successor of opengotha, the well known pairing system software developed by Luc Vannier and uses the same algorithm internally, as well as import and export features towards its format.

version 1.0-BETA supports the Swiss pairing system, ideal for championships with no handicap games, as well as the MacMahon pairing system, more suited for classical tournaments and cups.

Future versions will support more pairing systems and more features. Your feedback is welcome!

How to use ?

We offer you the flexibility to use in a way that best suits your needs. Here are your options:

  1. Stay in the browser: If you prefer convenience, you can simply use the instance graciously hosted by the French Go Federation.

    Launch
  2. Launch a standalone instance: This mode allows you to run on your local computer.

    That's the best option if you feel more comfortable when running locally or whenever you want to be able to do the pairing without internet. You can choose to use either the standard interface (which is meant to look a lot like opengotha) and the web interface (by launching the engine and connecting to it using a browser).

    Download standalone
  3. Launch a pairing server: This mode is the best suited for big Go events like congresses, it allows to register players, enter results and manage pairing from several workstations at once.

    Download client/server
  4. Compile from the sources: the project is fully open source, and under the very permissive apache licence, allowing you to tweak it in any possible way. Be sure to contribute back your enhancements!

    Browse sources