Kaggle Competitions

Hi everyone,

TLDR: I’d like to use this topic to create a list of past Kaggle Competitions, which are fun and educational. Tell us about the best competitions, in which you have participated and what you learned.

Long version: my study group have a list of past Kaggle competitions which we recommend for new members e.g. Digit Recognizer, Titanic: Machine Learning from Disaster, House Prices: Advanced Regression Techniques. Our main criteria are:

  1. That the competition is still open for Late Submission so that we can compare our results among each other and among the people in the leaderboard.
  2. That the competition has some educational value, e.g. Cats & Dogs competition is so easy with fastai library that it is quite hard to learn anything.
    Please share what competitions you liked, how you solved them and what you learned.