Sakara, thank you I wish all the educational articles and videos to gather in one place, it would be good!
Sakara
2020-03-27 23:25
4
@Lena2020, there are instructions from one of the player - https://en.grandgames.net/info/sudoku_alex . If I'm not mistaken, before these instructions were stored in the Sudoku section, which was very convenient.