American Go E-Journal

Member’s Edition: Guo Juan 5P on two mid-level single-digit kyu games

Tuesday May 4, 2021

Commentary: Guo Juan 5P
Game Editor: William Cobb
Published in the May 4, 2021 edition of the American Go Journal

This month I have two games from the same player. He is 7k and played white in both games. There is one thing that happened in both games: unnecessary invasions.

I have a tip for players who love to destroy the opponent’s territory: before a risky invasion, ask yourself, “Is his territory going to be bigger than mine?” If yes, we invade, if not we should defend instead

Guo Juan 5P is a popular go teacher based in Amsterdam. Guo Juan’s school has just launched a totally new website and it’s really great! All of the great lessons are still there, but even better. Short, focused lectures and problems made specifically to practice what you’ve learned until you remember it in your games. If you haven’t used her site before, there is a 2 week free trial. Check it out at


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