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A comment on The Miracle Sudoku [video]. Parent comment

Re:The Miracle Sudoku [video] by kadoban on Wednesday May 20, 2020 @02:42PM (#23250274)
Thanks for your site! I've been there before. I really like the Cho problems.
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Re:The Miracle Sudoku [video] by tasuki on Thursday May 21, 2020 @05:09AM (#23256322)
Cho Chikun is the popular one. My favourite is Gokyo Shumyo!
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