Found a bug(maybe?)

[shinuito]

@jlt

This looks wrong to me. Assuming they both have 50% chances of winning

Maybe they don’t have 50% chance of winning?

@gennan

Overall, black wins about 45% of properly handicapped games, which is a bit lower than 50%, but that is expected because traditional handicap falls half a stone short of full compensation.

I think OGS posted similar statistics of their handicap games.

Edit: taking data from a longer time period (from 2006). Now black’s winrate is a bit lower (more like 34-42% winrate instead of 45%), suggesting that the handicap fell a bit short to compensate for the skill difference implied by the rank difference, especially for larger handicaps.