1 May 2021
- 04:2804:28, 1 May 2021 diff hist 0 Mahjong programming tests Changed the 13th test from the top as it was 2-shanten and not 1-shanten as suggested in the comment current
8 April 2020
- 01:1601:16, 8 April 2020 diff hist +12 North American Open →Made it more clear that there was a link to the 2018 NA Open page current
10 April 2019
- 19:2719:27, 10 April 2019 diff hist +31 2018 North American Open No edit summary current
21 October 2018
- 00:2000:20, 21 October 2018 diff hist +60 List of mahjong clubs outside Japan No edit summary