You are cordially invited to match wits with some of the best minds in IBM Research

IBM Research | Ponder This: "You are cordially invited to match wits with some of the best minds in IBM Research.

Seems some of us can't see a problem without wanting to take a crack at solving it. Does that sound like you? Good. Forge ahead and ponder this month's problem. We'll post a new one every month, and allow two to three weeks for you to submit solutions (we may even publish submitted answers, especially if they're correct). Towards the end of the month, we'll post the answer.

Here is the solution for our February 2005 problem.
And now... here's our March challenge!
So give your mind a break from its routine---you never know what other problems you may solve in the process!"