Bulky Ten In The Corner
The Bulky ten in the corner is a big empty group without cutting points that still is not territory.
Black can play at any of the 7 marked intersections to live outright with 9 points of territory, but
is best because it leaves either no ko threats or only one tiny one (depending on the rules). White-to-move plays
.
start of main lines
Reminder: Although _the indicated sequence_ is sente, White took gote to get to the start of this diagram.
mannen-ko
If White ignores Black's ko threat, then White plays
at
, which kills Black. If
is still empty then after Black retakes the ko, Black's followup is capturing
to live with 9 points under territory scoring. If White retakes the ko, then Black can back down from it with
. (If Black would do that without having played a ko threat, then Black should not play this line.)
after Black backs down
After Black backs down, the ko's swing becomes 9 points under territory scoring. White wins it with
for a seki in which White captured 1 net Black stone. After
, Black wins it by playing either of the other 2 marked points.
![[Diagram]](../../diagrams/44/051835ed929e370957b7b4d1f4f8f18b.png)
![[Diagram]](../../diagrams/31/4e695c0795d5eaddf66c1bf6c3678053.png)
is elsewhere
is at k or s. (Note that White has already taken gote.)
![[Diagram]](../../diagrams/44/acf3871fa94d01aa00cc896b71cc838e.png)
can be at either of the indicated points![[Diagram]](../../diagrams/25/7e9a11132c12f8da19cbc705c5846a42.png)
![[Diagram]](../../diagrams/41/1ca724561a4b0a52abb75d40ddc2a144.png)
![[Diagram]](../../diagrams/9/c3c42a0147d98c1b6b29e190925fc9c2.png)
![[Diagram]](../../diagrams/8/3fc230e403fda0d3853034381ea82035.png)
2024 the Authors,
published under the ![Sensei's Library [Welcome to Sensei's Library!]](../../images/stone-hello.png)