Opdoku = Calcudoku + Mathdoku

Opdoku = Calcudoku + Mathdoku is a single player action game. It was developed by Christian Rusche and was released on September 26, 2016. It received neutral reviews from players.

M.: »Absolutely love this app - simple easy to use interface and free.« Opdoku is completely free of charge, with no adverts or additional purchases. Sounds good? Try it out today! The rules are simple: ○ As in Sudoku, each digit can only appear once in each row and column. ○ Each digit is part of a group, each of which has a mathematical operation and a result. All digits in the group have …