Introducing: Brian Katz, a Ph.D. student in the Department of Mathematics here at UT.

Brian started us off with a rendition of the "Bridges of Konigsberg" puzzle for the modern era - complete with a wager for a Venti Raspberry Mocha Cappucino.

He then posed his own "Paperperson Puzzle." Is it possible for a paperperson to traverse each street in this diagram exactly once, and return to her starting position?

We made (and then proved!) a conjecture stating precisely which graphs have Euler circuits.

At several points in the talk, Brian posed challenge problems for the students to work on...

and several math grad students, such as Brandy Guntel (pictured above), hung around to discuss them with our students.

A group of students walks Cody through their solution to one of Brian's problems.

Once again, former SMMG coordinator Adriana Salerno came and joined the fun.

Approximately 40 students and adults showed up - at the beginning of Spring Break, no less! - to explore graph theory with Brian.

Tapasvini showed us her version of the 1-skeleton of a cube. (Look, ma - no crossings!)