Question - is there a way to potentially run a bot supporting Japanese rules on OGS?
Before too long I expect to have some versions of KataGo (currently running as kata-bot on this server) that experimentally support Japanese rules… or at least something close enough that in all but highly rare and exceptional cases it will match Japanese rules. (So, no superko, scoring based on territory+captures, bent-4-in-the-corner is dead even if there are ko threats in a seki elsewhere, etc). Of course, it’s possible the bot would misevaluate one of these rare cases, but that would be its own mistake, no different than any other mistake that a bot could make in normal play.
As far as the bot’s behavior, it would be what you’d expect - playing the game normally, finishing up the borders, (usually) filling all the dame, and then passing (without physically capturing stones believed to be dead).
Would there be a way to potentially run such a bot on OGS? I don’t see a way to specify rules for the current gtp interface. But OGS seems to have a pretty good dead-stone heuristic algorithm, so it seems likely to me that OGS’s automatic scoring could be good enough most of the time to not even need any API for agreeing on dead groups and such, so the current API might already be enough, if only there was some flag to set the rules.