Intel Threading Challenge

Intel are running a programming challenge based around the area of multi-threading. They pose a programming problem, and you submit code which solves the problem using multi-threading.
Winners of the rounds get cash, and the overall winner gets an Apple laptop.

It's worth having a go, because:

• Often, not many people apply because it requires effort. So your chances of winning are reasonable.
  
• You'll likely learn something, or at least dust off your skills.
• It's good to mention at interview, and gives you some more demo code.
• Being able to think of problems in terms of multiple threads/cores is becoming highly important, and a desired skill.