Hi, I'm Hajin.

I'm a software engineer with an MBA degree, and I am a former professional Go player.

I love to read books, newspaper, and magazines, and to play tennis with my awesome husband.

Contact me!

My Mission


Strive to be wiser each day. Learn from experience, conversations, books, and contemplation.


Listen more than speak, and carefully communicate what I know, think, or feel. Avoid assuming other people can read my mind.


Love is a verb, not a feeling. Love my family, friends, and myself.


Always have a strategy based on long-term perspectives, even though it requires frequent revision.

Personal Projects


My YouTube channel began as an experiment. I made a few videos where I talked in English about my plans and strategy while I played Go online. These few videos went viral in the Go community, and I continued to make various Go videos since then. Today, my channel has over 200 videos, 12k subscribers, and 20M minutes watched.

Open the Channel


My first published book, Outside the Board, is a collection of 70+ blog entries I wrote during my transition from an active professional Go player to an undergrad student to a young professional in business administration. Recently, I began to work on another book on my childhood years as a Go prodigy.

Check Out the Book