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Sudoku DS – Nikoli No 'Sudoku' Kettei Ban (High Road)
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Nikoli No Sudoku 3 Dainishuu – Sudoku Kakuro Bijutsukan Hitori-ni-Shitekure
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Nikoli No Sudoku 3 Daiyonshuu – Sudoku Numberlink Shikaku-ni-Kire Hashi-o-Kakero
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Nikoli No Sudoku 2 Daiisshuu – Sudoku Nurikabe Heyawake

Nikoli No Sudoku 3 Daisanshuu – Sudoku Slitherlink Masyu Yajilin

Puzzle Series Vol. 9 – Sudoku 2 Deluxe