25,492,142 comparisons among 690,746 agents.
| Description | Go games played on Online-Go.com (OGS), 2005-11-05 to 2021-10-12: 25,492,142 decided games between 690,746 players, from Zachary Vance's 2021 dump of the OGS API. agent_a is black, agent_b is white, and homefield is "agent_a" throughout because black moves first; komi and handicap, both kept as columns, are what compensate that, so read the three together (white wins 59% of games, which is what handicap play does to the colour balance). winner is agent_a or agent_b and never a draw: the source records no tie. Also kept: the board size (19x19 11.9M, 9x9 10.3M, 13x13 3.3M, and 67,120 games on 5x5/7x7/15x15/17x17), the rule set, whether the game was ranked (19.3M were), the outcome as recorded (Resignation, Timeout, "6.5 points", Disconnection, Moderator Decision and imported-game variants) and margin_points for the 28% of games that were counted out. Dropped: 1.37M cancellations, 157,798 unfinished games, 59,145 on non-square or unusual boards, 3,267 whose recorded winner is neither player and 247 with a missing or shared player id. Games the players marked private are already absent from the dump; on top of that, usernames, player ranks, move records, chat and reviews are dropped and the OGS player ids are re-keyed to integers, so no row can be joined back to an OGS account. |
|---|---|
| Reference | Vance, Z. (2021). OGS 2021 collection of Go games [Data set]. Internet Archive. https://archive.org/details/ogs2021 |
| Licence | Custom |
| Source data | https://archive.org/details/ogs2021 |
These notes describe the source data, which the IRW reproduces as released. All notes are listed on the Data Notes page.
| Comparisons | 25,492,142 |
|---|---|
| Agents | 690,746 |
agent_aagent_bboard_sizedatehandicaphomefieldkomimargin_pointsoutcomerankedruleswinner
Custom licence — check the terms before reuse: Published on the basis above rather than under a licence of IRW's choosing: the dumper's public-domain release plus an OGS representative's research-use statement. Revisit if OGS replies to the outstanding ask (issue #2710).
This table is larger than Redivis serves without a login, so download it with one of the packages below or while signed in to Redivis.
Or load it directly in R (no account needed with irw 1.4.0 or later) or Python (needs a free Redivis account; the first call opens a browser to sign in):
# R
install.packages("irw")
library(irw)
df <- irw_fetch("ogs_go_2005_2021", source = "comp")
# Python
pip install irw
import irw
df = irw.fetch("ogs_go_2005_2021", source="comp")
@dataset{Vance2021,
author = {Vance, Z.},
year = {2021},
title = {OGS 2021 collection of Go games},
publisher = {Internet Archive},
url = {https://archive.org/details/ogs2021}
}
| IRW version | v712 |
|---|---|
| Redivis dataset | irw_competitions v7.1 |
| Redivis dataset DOI | 10.57761/3r1w-t660 |
| Manifest pin for this IRW version | v7.1 |
| Metadata source | irw_meta v68.0 |