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Here is Common 3.3 invasion shape 01 lesson B. Enjoy!

What does White move 2 want? 

I am going to take one week of vacation. I will publish the next new lessons in ten days. Thank you for your support!

Important shapes - Tiger mouth lesson 5 is online now. Enjoy.

Which mouth to peep first? Black to play next, A or B?

It is important to study AI 3.3 invasions especially for stronger players. But common 3.3 invasions are even more useful.  We will learn many basic shapes and gain more choices for our games.

Here is Common 3.3 invasion shape 01 lesson A. Enjoy!

Is White move A sente?

Have a wonderful weekend!

Basic course - Most basic - Eye 2nd step - lesson 10A is online now. This lesson is for around 20k to 5k level. Enjoy.

How many eyes this Black group has, 1, 1,5 or 2?

Invasion shape by shape - Shape 02 - Lesson D-2 is ready for you. This is a lesson for intermediate level. 

White to play next, A or B?

I wish you a wonderful weekend!

Invasion shape by shape - Shape 02 - Lesson D-1 is ready for you. This is a lesson for intermediate level. 

Can White still invade by playing A?

Important shapes - Tiger mouth lesson 4 is online now. Enjoy. 

Black to play next, A or B?

Thank you very much for your support, and I wish you a very nice weekend!

Joseki-Step by step: 5-3 point - Lesson 01B is ready for you. This lesson is for intermediate level. 

White to play next, A or B?

Black to play next, A or B?

Have a nice weekend!

Joseki-Step by step: 5-3 point - Lesson 01A is ready for you. This lesson is for intermediate level. 

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