There is Death in the Hane

  Difficulty: Beginner   Keywords: Life & Death, Proverb

Chinese: -
Japanese: 死はハネにあり (shi ha hane ni ari)
Korean: -

This proverb, "There is death in the hane", refers to the fact that the hane on the first line is a very common method of killing groups. The main purpose of the hane is to reduce the space for making eyes.

Example 1

[Diagram]

Example 1

The hane at W1 kills the Black group by reducing the eye space to a bulky five dead shape. If Black tries to capture at a, this does not gain an eye.



Example 2

[Diagram]

Example 2

This Black group (an L+1-group) can be killed with the hanes at W1 and W3. If Black blocks at a, Black's interior space is a dead bulky five. White can then kill Black with a placement tesuji at b. If Black tries playing b instead, then white will play a.



Notice that in the above examples, the hane stone is not defended when put into atari. Instead another hane or a placement follows. That is because capturing the hane stone will result in a false eye, and White can easily prevent Black from escaping to the outside (see preventing escape on the first line).


See also:


This is a copy of the living page "There is Death in the Hane" at Sensei's Library.
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