Some Endgame Problem 9 / Solution
The informal analysis
![[Diagram]](../../diagrams/39/43a129475c97ef96ebca3b01eb73f047.png)
Solution
is the solution, not a.
![[Diagram]](../../diagrams/7/d55d32246d7dd4e1686db61465bdaeed.png)
Solution
What is so painful for Black is that
is practically a sente move during the endgame phase. After
, then White can tenuki, so White has reduced Black's territory in sente.
![[Diagram]](../../diagrams/3/3e3763d5ed6c197775e75e753f920ac0.png)
Variation
does not work either. Black loses even more this way.
![[Diagram]](../../diagrams/31/48b411255230adf3aa2896667c8fda00.png)
Failure
is considered a failure in this problem. After
, if White saves the two stones at a, then it is gote. Nothing more than an itch for Black.
The more formal analysis
![[Diagram]](../../diagrams/48/2c02b638353d3c32d5440d693d40bc40.png)
Almost sente
Bill:
-
is fairly large, about 8.7 points.
![[Diagram]](../../diagrams/33/5e8978ce14251067b3719e85d68beb5f.png)
Large gote
connects at
.
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
-
is sente, and even later
-
is sente.