Kaggle/Janet Street Market Prediction Challenge
kaggle.com
kaggle.com
Here is a game theory problem, given you may be brilliant and think you can succeed - you handover something amazing to Jane street and give it to them on a silver platter. They probably will hire you too.
I have a better offer: respond to this message if you solve it and don't share it with Jane street and I will give you 100K & 10% of profits until you die. Given Due-dilly, & customary formalities. This is a Serious offer.