What happens when a former U.S. Women's Champion and a former U.S. Champion collide? The two engage in a feisty debate over the power of the famous isolated queen pawn. Black does a decent job blockading the d-pawn, but white launches a powerful attack anyway. Practitioners of the c3-Sicilian need to learn these ideas, but since so many openings can offer the same pawn structure, we are all advised to master the formation.