San Ren sei: the cosmic style

Everything you need to know about San Ren Sei!

Welcome to the Cosmic Style Masterclass! In this blended written and video course, you'll learn everything about the dynamic Sen Ren Sei opening.

Some players believe Sen Ren Sei has become ineffective due to AI. However, this classic opening remains a great choice for human players up to 5 dan on KGS.

The unorthodox moves teach flexibility, profit-focused attacks, and big point acquisition - invaluable skills for kyu players.


✓ Over 3 hours of video content
✓ Written Instructions for Theories for Easy Digestion
✓ Interactive Problem Solving Session
✓ Unlimited lifetime access

Introducing…. San Ren Sei masterclass


Sen Ren Sei leads to creative, dynamic games full of fighting spirit.

Join us to master this underestimated opening and inject excitement into your go!

The lessons will equip you with the knowledge to outplay opponents up to 5 dan with Cosmic Style.

Learn San Ren Sei with Simple Baduk

San Ren Sei: The Three Star Opener
$25.00
One time

✓ Over 3 hours of video content
✓ Written Instructions for Theories for Easy Digestion
✓ Interactive Problem Solving Session
✓ Unlimited lifetime access

This course provides a comprehensive Sen Ren Sei education through:

  • Written history and theory overviews

  • Video tutorials demonstrating common Josekis & how to deal with Invasions

  • Text and video lessons on vital tactics and strategies

  • Interactive problems to solve and reinforce your skills

“Now I can confidently play San Ren Sei and also destroy San Ren Sei!”

— Max K.

Sample Lecture

I hope you like my teaching style and pace!

$25.00
One time

 FAQs

  • You will see:

    • 6 Joseki Lectures

    • 5 Invasion Lectures

    • 5 Videos on San Ren Sei and Cosmic Style Related Problems

  • Most of the videos are around 20 minutes long.

    The duration of the whole project is more than 4 hours

  • Yes! In fact, this project is tailored to Kyu players.

    You will learn everything you need to know about San Ren Sei and Cosmic Style in this project.

    San Ren Sei is a great fuseki to use until 5 dan KGS, and Cosmic Style is something that professional players still use to this day.