Beginner Exercise 77 / Solution

Sub-page of BeginnerExercise77
[Diagram]
Black is killed  

The Black group looks to be safe, but it has a serious weakness - the marked stones have no outside liberties.

W1! kills. After W3, Black can't play at a for shortage of liberties. This trick is often seen (or threatened) in practice and called the "old mouse stealing oil" in China.

[Diagram]
Snapback  

B2 and B4 tries to form an extra eye, but W3 and W5 executes a snapback, which at the same time falsify Black's last hope at a.

[Diagram]
Not enough space  

B2 connect doesn't help.


Failures

[Diagram]
Failure 1  

W1 is too slow. Just don't forget to defend at B4 against White's cut there.

[Diagram]
Failure 2  

After W1, Black has many ways to live. For example, B2 makes a and b miai for life.



Beginner Exercise 77 / Solution last edited by hnishy on September 8, 2024 - 01:41
RecentChanges · StartingPoints · About
Edit page ·Search · Related · Page info · Latest diff
[Welcome to Sensei's Library!]
RecentChanges
StartingPoints
About
RandomPage
Search position
Page history
Latest page diff
Partner sites:
Go Teaching Ladder
Goproblems.com
Login / Prefs
Tools
Sensei's Library