本ほん因いん坊ぼう戦せんMeaningsNoun1. Hon'inbō Tournament (annual professional go competition); Honinbo TournamentKanji used本book因cause坊boy戦warComposed of本ほん因いん坊ぼうHon'inbō; Honinbo; grandmasterNoun戦せんwar; battle; match; game; competitionSuffix