Some Endgame Problem 9 / Solution

Sub-page of SomeEndgameProblem9

The informal analysis

[Diagram]

Solution

W1 is the solution, not a.

[Diagram]

Solution

What is so painful for Black is that W5 is practically a sente move during the endgame phase. After B6, then White can tenuki, so White has reduced Black's territory in sente.

[Diagram]

Variation

B2 does not work either. Black loses even more this way.

[Diagram]

Failure

W1 is considered a failure in this problem. After B4, if White saves the two stones at a, then it is gote. Nothing more than an itch for Black.



The more formal analysis

[Diagram]

Almost sente

Bill: W1 - W3 is fairly large, about 8.7 points.

[Diagram]

Large gote

W10 connects at BC.

B1 is almost as large, about 8.4 (8.5 points when White is komaster). So White will often be able to play here with sente.

Later B5 - W6 is sente, and even later B9 - W10 is sente.


This is a copy of the living page "Some Endgame Problem 9 / Solution" at Sensei's Library.
(OC) 2007 the Authors, published under the OpenContent License V1.0.
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