"The best offense is a good defense"

- Yang Yilun

Let's get better together

Study Go

Ask stronger players to help review your games, study pro games or tsumego. We also organise lectures with strong teachers. The global idea is you get taught by the stronger while you teach the weaker.

See our study schedule in our calendar

Play Go

Playing long serious games is very important to improve. Our league system encourages you to do so in a friendly yet competitive environment. On top of that we reward our winners with cool prizes every month.

Check out our leagues


We are a friendly active online community of Go players from all around the world. OSR is run by volunteers, community driven and all free for everyone to come enjoy the beautiful game of Go.

Come chat with us in our Discord

Whether you are a beginner just learning the rules or a strong player, OSR can help your Go.

Join now !

We provide

OGS/KGS/Discord integration

See what opponents are online on those platform to find a game. Play your league games, write #OSR during the chat and that's it. Our website will collect it automatically.

Lectures for everyone

Ask questions to master Guo Juan (5p) in our forum. She kindly answers every months! Vote for next lecture topic. We set it up with our teachers, record it and upload to our youtube channel.


Win a teaching game with a professional player, a game review by a strong dan or 10€ gift certificate at Guo Juan's internet go school. All that just by playing go!

Plan your games

Plan your game in advance with your opponent using our game planner. It's easy to use and it adapts to timezones automatically.

OSR Events (UTC)

26, Aug

4 p.m.

GoDave89 vs. Alexandre D.

Our current Meijin GoDave89 will have his teaching game with Alexandre Dinerchtein (3p). Watch out for a link to the game on Discord!

Latest news in our blog

July league update

This month's OSR update brings you a new monthly problem, an answer to last month's problem, and finally all the details of the July leagues and the 9th OSR Meijin league.

Continue reading »

June leagues results

After welcoming BoneSaw to the team last month everyone disappeared into summer holidays while I am still sitting here, mumbling "wörk wörk" into my Radler and writing an other blog post. You may have noticed that the first half of the year is already over again and with the passing of June we (at least around here in central Europe) survived the first heat-wave of the year with temperatures of up to 40°C. Weather like this calls for afternoons in the park or the pool which shows in the activity charts of our leagues.

Continue reading »

May update

May just ended and, therefore, it is time for a new "end of month" special. It's been a fairly quiet month. To bring some more energy to the community, the OSR team is proud to welcome a new addition to it's roster: the all-mighty BoneSaw. We hope that with his help we'll be able to tackle on more projects in the upcoming months.

Continue reading »

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