noun
Hon'inbō Tournament; Honinbo Tournament
An annual professional Go competition in Japan, one of the seven major titles.
本因坊戦は、囲碁の七大タイトルの一つです。
The Hon'inbō Tournament is one of the seven major Go titles.
Named after the historical Hon'inbō school of Go. The exact derivation is uncertain; the spelling is conventionally associated with the tournament.