Last week's grid had several solutions... unfortunately, most of them were wrong. And for those who did submit a correct answer, most of them forgot to submit and answer to the grid question. So this time, please pay closer attention to the instructions. Maybe that's why your marks are not very high on final exams.

The smart people who were completely right were Michael Perkins, Jason Ellis, Eric Logan, and Mark MacDonald. However, only two of them submitted answers to my witty question, and Eric Logan's was the best: TLA (Three Letter Acronym ). Pick up your prize in the mathNEWS office!

Now to this week's grid. The tie-breaker will be if you could add a sport to the Winter Olympics, what would it be? Now submit! Submit!