"To improve your Go strength, you need 3 steps: play serious games, get reviewed, and gain new ideas. This program will help you do all of them.

I will do my best to give you a new point of view and allow you to enjoy this beautiful game ‘Go’ even more!"  - Teacher, In-seong Hwang
The 45th season is running!
Missed out on joining? Maybe you can join the 2nd cycle in 4 weeks!
Or join as a spectator :)

Season period: 7th September 2026 - 5th February 2027.
Please check the details in the schedule tab.

 Register 

Please experience our new tool: Yunguseng Lecture Pattern search in the Lectures tab!

Season 4, 5th lecture
Sample Lecture: 6-7-8 theory in the corner

YD Rating System

1. Get your personal data page
2. Check your strength every week

Yunguseng Dojang rating points start with your rank, then adjust each week based on your league game results.

Yunguseng rating points will be carried over into each new season

Comments about our Teacher

  • nadoss: Really smart guy. Great teacher, great sense of humor, and a penchant for understanding how people think. He won't just find one mistake in your way of thinking, he'll find a new concept for...
  • crottmann: If you are searching for go teaching consider this great system. In-seong and of cause Semi do their very best to lift you up some level. And they do it at the top of go teachers in europe, ...
  • eko: He is absolutely a good teacher. His lectures are always well-prepared, and his online yunguseng system allows go players to develop fast and to learn concepts systematically.
  • gasana: In-Seong is a very good teacher, always very clear and adapted to the level AND to the person. He is always very commited and friendly. Beside the system is very good to improve a lot on eve...
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