Good thing Tony was content to let secrets stay that way. He understood, and did tend to get snappish when anyone pried too much on his own personal life. There was a degree he'd tell others, beyond that it was none of their business. So as long as L didn't pry too hard (even if he had somewhat, he paid for it with a sandwich) he'd leave the other man be.

"Sounds..." Boring. "Impressive." Chess was something L was passionate about, and while Tony didn't get it he didn't get a lot of things. Whatever, let the guy reminisce. The increased pace was noted but not commented on, he'd just turned his head to watch L more sharply for a brief moment, fixating almost predatorily before shaking himself and going back to a relaxed slump. Don't do that, he's jumpy.

"Was it?"