Crossword de Manabou! Chiri - Rekishi / release rerr2dx1 / correction
Suggest a correction クロスワードで学ぼう! 地理・歴史, Nintendo DS, JP
Corrections are GitHub issues on the public data repository, so each one is in the open with its evidence. This page fills the issue in; on GitHub you say what kind of evidence it is and submit (a GitHub account is needed). How corrections are checked.