If you know them, following joseki is easy, but what happens when your opponent veers off course? Will you know how to handle it? Alexander Dinerchtein 3P has teamed up with Josekipedia to offer a joseki contest exploring this problem. The contest contains three real high-level games containing joseki mistakes. “Find the mistakes, then the best refutations, and win fabulous prizes,” says Dinerchtein. “Even if you are not a joseki expert, you will learn a lot from participating in this contest!” The contest ends April 30.