Jaw strap

  Difficulty: Beginner  

Chinese:
Japanese アゴひも (agohimo)
Korean:


.........
.....O.O.
...O.XO..
.....XO..
...dB1.b..
..X.aOXX.
...c.XOO.
.....X...
.....OO..
.....,...
.....O...
.........

OTF: Jaw strap

B1 is the jaw strap, a rarely used term for a form of net.

Herman Hiddema: Can anyone show a sequence that captures if white stretches to a? I've been puzzling on it for quite a while, but nothing seems to work. Nothing can work really, because if black does not take a liberty, white can always play b. The obvious move seems to be c, but if white plays d the result is quite disastrous with black losing all his stones in the corner.


.........
.....O.O.
...O.XO..
.....XO..
....XW8W7W9.
..XW2W1OBB.
...W5W3XOO.
..W6.W4X...
.....OO..
.....,...
.....O...
.........

OTF: Jaw strap

Imagist: That is difficult. I've got that black sets up a short ladder that leads white into a net but then white threatens to connect at W7, and when black defends with B8, white kills the marked stones with W9.


Q: is this synonymous with Davies' "loose ladder"?

[Diagram]

Jaw strap

JadedMage: I wonder if there is not a mistake in the diagrams above. The "agohimo" that I found on a Japanese website is just a basic tesuji, as shown.

Here, black does not have to deal with a shortage of liberties, as opposed to the original diagram.


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