There are two independent ways of winning prizes. If you do not submit your project on time, you will not be able to win. Anything.
In your submission you have chosen 1-5 challenges, and you compete in each of them independently. If you chose 5 challenges, you can win up to 5 challenge prizes! Remember, that partners have their own specific winning criteria and prize for each challenge. Partner reviewing is on Sunday 10:00-12:00.
Track winners are chosen by the hackers using the reviewing system on the Project Platform. Each track winner will win 1000€ and a chance to compete for the grand prize and demo their project on the Main stage.
From the track winners the hackers will choose the Grand Prize winner by voting on the Project Platform.
More detailed info can be found here: