
1) Go competition
Found on
https://www.crosswordclues.com/clue/oteai

The Ōteai was a tournament used in Japan, by the Nihon Ki-in and Kansai Ki-in, to determine the ranking of its go professionals on the dan scale. It was instituted in the 1920s soon after the Ki-in was set up in 1924. Initially it was run in Spring and Autumn sessions in Tokyo, with the pros brought together to play around eight games in each ses...
Found on
http://en.wikipedia.org/wiki/Oteai
No exact match found.