Intermediate and newcomer players - sharpen your game with this series of tutorials. You can browse the index by topic, or read them in order. Learn even more at ACBL's Learn page.
We suspect that East doubled 5♥ with great glee, no doubt anticipating a sizeable penalty. In some quarters this is ironically known as a “sporting double”, meaning that it is far from sporting and actually a sure thing. Well, most of the time, anyway!