In the following game, Penny and and her opponent Shayna Provine both display a very mature handling of the Sicilian. (Chicagoans of a certain age know all about the dangers of the anti-Najdorf system 6.g3, as we all suffered at the hands of Leo Kaushansky.) As I played through the game score on my iPhone, I found myself wondering who Penny's coach could be.
Then I saw Penny give Tamara Golovey a hug in the hotel lobby. Aha!
P.S. What cool shot did Penny miss on White's 24th move? (I didn't notice it at first: she had to show it to me.)