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GiveMeLiberties

Referenced by
ShortageOfLiberties
Nakade
BentFourInTheCorner
SqueezeTesuji
CarpenterSSquare
TwoByThreeBox
BeginnerExercise5...
BeginnerExercise1...
KanazawaSolution26
KanazawaSolution16
SekiInsideTheBulk...
KanazawaProblem20...
KyuExercise4Attempts
KanazawaSolution70

 

Oshitsubushi
Path: GiveMeLiberties   · Prev: ConnectAndDie   · Next: ThrowIn
  Difficulty: Beginner   Keywords: Life & Death, Go term

This Japanese term describes a way of countering nakade.

[Diagram]
Black lives

B1 here lives. Black will get two eyes by playing the 1-1 point, eventually, and there is nothing White can do to prevent that. B1 prevents White connecting the WC stones (suicide rule).

B1 is an example of oshitsubushi, pressing the opponent's stones so closely together that connection is illegal.


[Diagram]
Black dies

White to play can kill Black by connecting. Now White can kill Black by nakade at the 1-1 point, even if Black captures the three stones.



[Diagram]
Black dies

If Black instead captures immediately, White plays at W2 and Black will die. White shouldn't regard this as a ko fight in the corner and try to recapture: Black then gets a second chance at oshitsubushi.


[Diagram]
Black dies (continued)

B3 to capture is useless.


[Diagram]
Black dies (continued)

White throws in and Black only has a false eye here.



[Diagram]
Typical problem

W3 here doesn't understand the position. Now Black can live.


[Diagram]
Black 4 lives

Black lives with the sacrifice B4 and oshitsubushi at B6.

White should have recognised that this is a bent four in the corner position and played at B4 herself.



exswoo: Here's a fun fact. Oitsubushi literally means "chase and destroy" :)

fhayashi: Oshitsubushi is "push and smash". Oitsubushi would be "chase and smash". Maybe "squish" instead of "smash".

patrickb: "push and squish"... Hmm, I like that translation. :)



Path: GiveMeLiberties   · Prev: ConnectAndDie   · Next: ThrowIn
This is a copy of the living page "Oshitsubushi" at Sensei's Library.
(OC) 2003 the Authors, published under the OpenContent License V1.0.