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Farmer's Hat
Path: KillingShapes   · Prev: SquareFour   · Next: BulkyFive
  Difficulty: Beginner   Keywords: Shape, Go term

[Diagram]
Diag.: The farmer's hat

The farmer's hat is a bad shape, for the same reason that the empty triangle is bad.

Actually, you can think of this shape as two empty triangles.

White playing a and b reduces the liberties for the group drastically, and a black stone at a or b is wasted as he'd be better off extending up or down.

Bill: This is a very strange paragraph. Do we need it?
Charles It has been there since the start - two years - but that does seem long enough.


Generally the idea is alright but your explanation misses the point. If White plays at a or b she actually would improve Black's shape. If both points are filled then the shape is really good.

Perhaps we must divide into FilledFarmersHat?, EmptyFarmersHat? and FarmersHatAsAKillingShape? ? --Dieter

[Diagram]
Diag.: Very bad shape for Black

It is actually in situations like this that the farmer's hat is really ridiculous.

The marked stone has to be at a.


[Diagram]
Diag.: Black cannot cut at 'a'.

Black's bad shape allows White to play 1. Black cannot cut at a. Furthermore the circled point is a false eye.



Phlegmatic: One good use for the Farmer's Hat (continuing the KillingShape discussion):

[Diagram]
Diag.: The Farmer's Hat as Killing Shape.

If White plays at the marked point, she will be killed when Black plays at 1, so White is dead.


[Diagram]
Diag.: White is dead.


Minor note, but I've heard this also called the Soldier's Helmet. --BlueWyvern

I've also seen Napoleon's Hat --Nico

It is often mentioned as the "pyramid" too --ddom



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This is a copy of the living page "Farmer's Hat" at Sensei's Library.
(OC) 2003 the Authors, published under the OpenContent License V1.0.