While rewatching this episode, I took a closer look and froze the frame. When the scene starts, they have already 2 games completed and Schanke started on a third marking the centre position with a cross. Nick obviously has the circles.
We used to play this game in school when lessons were boring. If I recall correctly, both players take turns marking a box in a 3 x 3 square, while trying to achieve 3 marks in a row or diagonal.
I noticed that the 2 completed games both ended in a tie. What does that say about Nick and Schanke in this early stage of their partnership? The game is a strategy game. We know that Nick is well trained in these since we've seen him playing chess in addition to living in close proximity with a Roman General.
But what about Schanke? The fact that Nick didn't win shows that Schanke is at least as efficient in strategy games. As a detective he probably has to be. Yet, I find it amazing compared to Nick's experience. Or did Nick refrain from winning on purpose?
Any thoughts on the matter?