Holoku

Holoku - the app is Sudoku. Fans of these puzzles have the opportunity to get lots of levels that will keep them for a long time. The rules are pretty standard: users are required to put numbers in a 9x9 cells so that none of them were repeated in the same column, row and diagonal. Due to separation of the stages on multiple difficulty levels gamers can start with the easiest section, gradually coming to the most difficult Sudoku.