BQM8
Path: BigQuestionMark
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Difficulty: Advanced
Keywords: Life & Death, Question
![[Diagram]](../../diagrams/3/f189a7c3bd38672ec4fb01fe2ee76b7e.png) | Status ? |
Killing Sequence 1 (The Easy One)
![[Diagram]](../../diagrams/39/10be323f04abf2bf5c6cd477b3ad41fa.png) | The killing sequence 1 |
Looks are very deceptive... It looks as if Black is alive. However, the hane at , and , kill unconditionally.
![[Diagram]](../../diagrams/29/c2b8c4a2ae1d4a34d67f9716e8d76e98.png) | The killing sequence 1 (continued) |
Notice that Black can't play at at .
![[Diagram]](../../diagrams/49/c7cafba41c33e10debb315367bc6bdb6.png) | The killing sequence 1 (continued) |
Killing Sequence 2 (The Harder One)
![[Diagram]](../../diagrams/47/5f2804d6a7318e03e4d6e84fa6f13a97.png) | The killing sequence 2 |
The placement at works, too. The aji caused by becomes apparent and Black is now unconditionally dead.
![[Diagram]](../../diagrams/11/b39da15fdb9b955b1741d33bec1f5dc1.png) | The killing sequence 2 (continued) |
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.
![[Diagram]](../../diagrams/44/e12c39dd28281bd261645dd57c7fe8d3.png) | Pitfall |
Playing in the previous diagram at here is wrong. Black descends at , and then makes a seki with .
![[Diagram]](../../diagrams/13/8d805a2d93a3d8e1601b6cae030e2acb.png) | Variation 1 |
tries to expand the eye space, but with the ataris at and ...
![[Diagram]](../../diagrams/8/91cc7318d7d09b07fc72bfe9105d3536.png) | Variation 1 (continued) |
...White continues his atari sequence, and occupies the vital point of . Black dies with a bulky five shape.
![[Diagram]](../../diagrams/28/9749337347c31cf7c597cf1661da18e5.png) | Variation 2 |
Black connects at , and White responds with . Then and are also miai.
![[Diagram]](../../diagrams/40/4740e6689787ffd2f2b4e6dbcfd03108.png) | Variation 3 |
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.
![[Diagram]](../../diagrams/25/3b4f108a3b033c51fb16dfaa70a871c2.png) | Variation 4 |
Maybe this variation is not needed? In response to , White cuts at and plays atari at , capturing the stones.
Other Variations
![[Diagram]](../../diagrams/45/170c2bd1bb36d57ad1b2128d4047efbd.png) | Variation 1 |
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.
![[Diagram]](../../diagrams/37/0c5d7d13d7a3d58941c60eae9bdf6bc8.png) | Variation 2 |
If Black plays , White makes a placement at and Black suffers the fate of a bulky five.
![[Diagram]](../../diagrams/49/4aef35a1a07ac29aec75c480db94cd0a.png) | Variation 3 |
This way of resistance is also useless. Perhaps the other variations are unnecessary?
This page was WikiMasterEdited by unkx80. The old page can be found here.
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This is a copy of the living page
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2003 the Authors, published under the OpenContent License V1.0.
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