Hi,
The Elo statistical model is wrong when different kind of programs play against
I have a similar experience. I calculated Japanese Shogi women pro rating before. The strongest woman, Ichiyo Shimizu, her rating is 1578 Elo. Her winrate against men pros is 18%(163 games), and against women pro is 65%(523 games). Her rating without women pros game is 1286 Elo. There is 292(=1578 - 1286) Elo difference. It is because usually women pros play with women pros. Women pros vs men pros are rare. I think similar thing happens on CGOS. There are three eras, Zen, LeelaZero and KataGo. Number of Zen vs LeelaZero games are a little. CrazyStone-18.04 rate maybe depend on Zen-15.7-3c1g. http://www.yss-aya.com/cgos/19x19/cross/CrazyStone-18.04.html Zen's absence is maybe a reason of this drift. Thanks, Hiroshi Yamashita _______________________________________________ Computer-go mailing list Computer-go@computer-go.org http://computer-go.org/mailman/listinfo/computer-go
