Start!

19×19   13×13   9×9  

Play as black   2 stone handicap   3 stone handicap  
4 stone handicap   5 stone handicap   6 stone handicap  
7 stone handicap   8 stone handicap   9 stone handicap  
Play as white  
Edit mode

What is this?

This is a baduk (go) engine running on the cloud. To be specific, this is a customized version of leela-zero (http://zero.sjeng.org/) running on a couple of consumer-grade GPUs, with a web frontend written from scratch.

To be more specific, this is a 192×15 net running at -v 800 to -v 2000 depending on server load, with some patches for performance optimization on this specific environment. This probably won’t be as good as people using their own GPUs, but it should be much faster than any consumer-grade CPU-only setups.

What are the game settings here?

Tromp-Taylor rules. 7.5 komi for even games.

NEW : Handicap games now runs with 0.5 komi! This involved a lengthy re-training and some tweaks so that it plays something sensible even on handicap games.

What is stored on the server?

At this point, nothing related to the game itself is stored on the servers. Once you close your window, it’s all gone.

What’s your next plans?

  • Some way to review the games you played – this is quite compute-intensive and I am thinking whether there is a good way to reuse your play record, but no good idea yet.