BQM 8
Problem
Killing Sequence 1 (The Easy One)
Looks are very deceptive... It looks as if Black is alive. However, the hane at
, and
, kill unconditionally.
Killing Sequence 2 (The Harder One)
The placement at
works, too. The aji caused by
becomes apparent and Black is now unconditionally dead.
If Black connects at
, White can play the hane at
to kill. After
and
, Black can't play at a because of shortage of liberties. So if he captures the two stones, White kills him at a.
...White continues his atari sequence, and occupies the vital point of
. Black dies with a bulky five shape.
Capturing the white stone at
is also useless. White can cut at
,
, and
: and Black is again given the death sentence. If
plays at
, and White can play atari at
, reverting to Variation 1.
Maybe this variation is not needed? In response to
, White cuts at
and plays atari at
, capturing the
stones.
Other Variations
We shall now consider Black's other answers to the hane (the marked stone).
is a possible move, but
reduces Black to a bulky five. If Black plays
, White plays at
; and a and b are miai.
Well,
must never be played at a, or else Black plays atari on three stones at c, White d, and
makes two eyes.
See also:
![[Diagram]](../../diagrams/19/3a07d73ac4d906de5453cffacca9a526.png)
![[Diagram]](../../diagrams/12/02d687ee8239e2fdd917eb6a505b59b3.png)
![[Diagram]](../../diagrams/46/dba6a640e2060b895b3b67c4c20bc2c2.png)
at
.
![[Diagram]](../../diagrams/29/a763b3630c8b7873bf41a38b8e518fc6.png)
![[Diagram]](../../diagrams/32/644f3b15c9ac34b3be9c532c37561e62.png)
![[Diagram]](../../diagrams/12/096397326a5201942103ded1e4b1032d.png)
![[Diagram]](../../diagrams/3/2a083e04d2380453e389752bfd0743a6.png)
, and then makes a ![[Diagram]](../../diagrams/26/49b1b17b70c4cbd4ae1ac99d662f3004.png)
![[Diagram]](../../diagrams/33/f3b5379a0ee6707e88de7b778b93e8dd.png)
![[Diagram]](../../diagrams/39/6a573f13d30132e9b9f99987acc7b7f0.png)
![[Diagram]](../../diagrams/15/a55ea3cdcb0c16e74e6379fac3182e52.png)
![[Diagram]](../../diagrams/19/fdc0d42b037090a433018c33cdb2426b.png)
![[Diagram]](../../diagrams/45/52f87d0b86e0fd94c13d6f3bd8df30b6.png)
![[Diagram]](../../diagrams/0/c8a7d18b1d78c90ee8d1ca8e4038a5b0.png)
![[Diagram]](../../diagrams/31/85d775d8516188340fef106e1da1d86f.png)
2024 the Authors,
published under the ![Sensei's Library [Welcome to Sensei's Library!]](../../images/stone-hello.png)