In which I won! Set is a fun game in that all ages can play it, with a little bit of instruction and learning time. Truth be told, when I first taught this game to Matt (very early in our relationship) he became very good at it. "The student has now become the master," he told me. Luckily, his skills atrophied over the years of not playing which allowed me to win.
We are STILL not done with the letter S. But we will keep chipping away at it.