Tokyo Olympics 2020 September 20, 2022 [Solvable? ]Problems of the arithmetic Olympics that even adults struggle with
Tokyo Olympics 2020 August 6, 2022 [Gento Kono]For exam mathematics… Gento Kono talks about his impressions of taking the Mathematical Olympiad
Tokyo Olympics 2020 November 21, 2021 [Arithmetic Olympics]This is a solution that even geniuses and brain kings can understand.
Tokyo Olympics 2020 November 19, 2021 [Can you solve it? ]Mathematical Olympiad figure problems that even junior high school students can solve in 1 minute
Tokyo Olympics 2020 October 19, 2021 Mathematical Olympiad that even elementary school students can solve in 30 seconds
Tokyo Olympics 2020 October 12, 2021 The best masterpiece of integer problems with too much learning[Mathematical Olympiad]
