Nikoli no Sudoku 3D Dai-ni-Shuu - 8-tsu no Puzzle de 1000-Mon / release r0nckwtm / correction
Suggest a correction ニコリの数独3D 第二集 ~8つのパズルで1000問~, Nintendo 3DS, 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.