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Handicap game Black takes 3 stones lesson 1 is online now. Enjoy!

Black to play next, A or B?

Have a wonderful weekend!

Problem set for Value of stones lesson 1 is ready for you. Jennie Shen made a wonderful series on this subject. Enjoy! 

Do the marked White cutting stones have high value?

Invasion shape by shape 09 lesson C is online now. This is a lesson for intermediate level.

Black to play next, which move is better?

Have a nice weekend!

Efficiency lesson 2 is online now. Enjoy.

A, B and C, which area is most interesting?

Invasion shape by shape 09 lesson B is online now. This is a lesson for intermediate level.

Black to play next, which moves are good and which are not?

I wish all the players at the Amsterdam international tournament a lot of fun and play well!

Efficiency lesson 1 is online now. This is a lesson for DDK players. Enjoy the lesson and the prolem set.

White to play next. Which moves are good and which are not?

Thank you very much for your support!

Invasion shape by shape 09 lesson A is online now. Let's study more basic and useful variations.

This is a lesson for intermediate level.

Please enjoy a wonderful weekend!

Capturing stones lesson 4 is online now. This is a lesson for DDK players.

Black to play next. A or B?

The 5th lecture on AlphaGo 3.3 invasion by YoungSun Yoon 8p is online now. Enjoy

Capturing stones lesson 3 is online now. This is a lesson for DDK players.

Black to play next. A or B?