Welcome to COSUMI! On this site, you can play 5×5 to 15×15 Go(a.k.a. Igo, Baduk, and Weiqi), which is a well-known ancient board game. If you do not know how to play Go, please look at Wikipedia(Rules of Go) first, and then try a 5×5 game that is just right for a beginner like you. Enjoy!
Japanese Rules(Territory scoring)
| 5×5 to 8×8, 15×15 Handicap Game | No komi, and your color is always black |
| 9×9 to 13×13, 15×15 Even Game | Komi is 6.5, and your color will be decided at random |
Yeah... COSUMI has lost 1,833,100 games already...