RTGProblem85/Solution

Sub-page of RTGProblem85
[Diagram]

B1 leads to this seki (one eye each). White gets 1 point by playing at a near the end of the game.

[Diagram]

W4 here is a serious mistake. Black may fight the ko or...

[Diagram]

Much better for Black

...choose this line. 4 points each and Black' s wall has been strengthened in sente.


[Diagram]

White is alive

B1 allows White to live with 7 points, though the top edge is sealed in sente. White needs another move at "a" near the end of the game.

[Diagram]

Mistake by White

This W4 is a mistake; Black makes a seki in sente.


[Diagram]

White lives with points

If it's White's move, W1 here turns the corner into 10 points territory.


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