The Doomsday Algorithm is a method to calculate the day of the week for any given date and involves four steps.

This brain trainer for children and adults will explain the different steps and gives simple assignments to train yourself in memorizing specific dates or to practice simple calculation steps. Play this app every day to master this simple algorithm, that can be learned within an hour.

Game concept to improve your mind with a daily reward system and reminder to practice every day.

Professor John Conway, the inventor of the Doomsday algorithm, trains every day and finds the answer within a few seconds. Impress your friends and family with your amazing mental skills.

Use the Training Field to practice partial memorizing and calculation steps. Practice your skills in the Battle Field and beat Conway.

Characteristics of this game:
- Completely free of charge, available in the Play Store
- No annoying ads during gameplay
- Created in Unity 2018.2 by one person. Your feedback is highly apprecitiated, so I can further improve the app.