We know you love a good puzzle; so our multi-threading experts have pulled together some of our most interesting brain teasers to give you a chance to flex your threading skills. Every month a new problem set will open for submissions and you will be awarded points based on your answers. Be sure to take advantage of our threading resources and tools to solve your problems and gain extra points. Each problem set winner will be announced on the site after the problem is closed but it’s the contestant who gathers the most points who'll win the Grand Prize . Also, check out the additional prizes for the limited time frame of June, July and August 2008. So sharpen your pencils and let the challenge begin! See official rules for details.

Register for the challenge now!

Update: Our winner for the month of September is David Geldreich. Congratulations, David!  His score of 245 points wins the USD $100 gift card. Check out the winning solution at the Queens & Knights discussion forum.  Make sure you check out our Thirteenth Problem Set for fun ... and don't forget to come back on October 7, 2008 when we reveal the grand prize winner!

Each month only one problem set is open for competition. Use the following tab color to determine which problem set you need to solve for this month:

Green Tab = This month’s problem set - Open for competition!
Yellow Tab = Future / Upcoming problem sets
Blue Tab = Past problem sets - Closed for competition