Bulky Five

  Difficulty: Beginner   Keywords: Life & Death

Chinese: 刀把五 (dāo bǎ wǔ); 刀板五 (dāo bǎn wǔ); 刀柄五 (dāo bìng wǔ); 刀五 (dāo wǔ)
Japanese: -
Korean: -

Bulky five refers to a certain unsettled eye space of five points.

[Diagram]

Bulky five

The vital point of the bulky five is the circle point. If White plays there, she is alive. If Black plays there, White is dead.



White can also live by playing at a (creating a bent four) or at b (creating a twisted four).

However, there are two points worth noting:

A play by White at the circle doesn't have these problems.


[Diagram]

Almost filling the bulky five

Black can almost-fill the bulky five into a pyramid four (as shown) or a squared four.

[Diagram]

White is dead

Subsequently, when White plays at white+circle, B1 kills. White is dead.


Linguistic note on Chinese

[Diagram]

Bulky five

Chinese terms for the bulky five include 刀把五 (dāo bǎ wǔ), 刀板五 (dāo bǎn wǔ), 刀柄五 (dāo bìng wǔ), 刀五 (dāo wǔ). All of these terms refer to the fact that the eye shape looks like a knife. Specifically, the knife has a blade and a handle, and these are joined up at the circle point. Incidentally, the place where the blade and the handle joins (circle) is also the vital point of the bulky five.

erislover: I think I have heard this called a "hatchet five" or something quite similar. To me, it looks like a butcher's meat cleaver.

unkx80: Actually, I think the bulky five is also known as "knife five".

Andrew Grant: I've removed the text 五目ナカデ (gomoku nakade) from the CJK box as "gomoku nakade" is not equivalent to "bulky five". Bulky five refers to one type of gomoku nakade only. There's also the cross-five shape.


See also


This is a copy of the living page "Bulky Five" at Sensei's Library.
(OC) 2016 the Authors, published under the OpenContent License V1.0.
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