Catcher v12

8/9/2019 Catcher v12

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Table of ContentsAttacking...........................................................................................................................................................4

Driving tesuji...........................................................................................................................................4Eye stealing tesuji (bata bata tesuji).......................................................................................................5Shortage of liberties (damezumari).........................................................................................................6

Throw in (horikomi / uchikaki).................................................................................................................7Capturing..........................................................................................................................................................8Connect-and-Die (oi-otoshi)....................................................................................................................8Crane's nest (tsuru no sugomori)............................................................................................................9Ladder..................................................................................................................................................10

Straight ladder (shicho)....................................................................................................................10Loose ladder (yurumi shicho)...........................................................................................................11

Net (geta)..............................................................................................................................................12Patting the Racoon's Belly (tanuki no hara tsuzumi).............................................................................14Squeeze (shibori)..................................................................................................................................15

Connecting techniques...................................................................................................................................16Tactical connection....................................................................................................................................16

Bamboo joint (take fu)...........................................................................................................................16

Box connection.....................................................................................................................................17Bridge under (watari)............................................................................................................................18First line connection.........................................................................................................................18Second line connection....................................................................................................................19First line ogeima connection............................................................................................................20Keima side connection.....................................................................................................................21Cut threat clamp..............................................................................................................................22

Connecting by capturing.......................................................................................................................23Ponnuki............................................................................................................................................23Tortoise shell....................................................................................................................................24Double crosscut to connect.............................................................................................................25

Diagonal connection (kosumi)..............................................................................................................26Good eye potential................................................................................................................................27

Mouth shape....................................................................................................................................27Parallelogram..................................................................................................................................28Table shape.....................................................................................................................................29Tippy table.......................................................................................................................................30Square good shape.........................................................................................................................31

Keima protecting the cutting point.........................................................................................................32Tiger (mouth) shape..............................................................................................................................33

Hanging connection.........................................................................................................................33Trumpet connection.........................................................................................................................34Honeycomb.....................................................................................................................................35

Trapezium shape..................................................................................................................................36Solid...........................................................................................................................................................37

Solid connection (simple connection)...................................................................................................37

Pole connection (staff connection)........................................................................................................38Strategic connection..................................................................................................................................39

Elephant jump.......................................................................................................................................39Extension..............................................................................................................................................40

Two-space extension.......................................................................................................................40Three-space extension....................................................................................................................40

Jump.....................................................................................................................................................41One-space jump..............................................................................................................................41Two-space jump..............................................................................................................................41

Knight's move.......................................................................................................................................42Small knight's move.........................................................................................................................42Large knight's move.........................................................................................................................42

Lion shape............................................................................................................................................43Underneath attachment........................................................................................................................44

Defending.......................................................................................................................................................45Winning race..............................................................................................................................................45

Under the stones (ishi no shita)............................................................................................................45


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Descent................................................................................................................................................46Ugly descent / ugly sagari.....................................................................................................................47

Making eyes or eye-space.........................................................................................................................48Placement preventing the tower peep..................................................................................................48

Miai Tesuji.......................................................................................................................................................49Grappling hook tesuji............................................................................................................................49Nose tesuji / nose attachment (hana-zuke)..........................................................................................50

Clamping tesuji (hasami tsuke) ............................................................................................................51Double threat........................................................................................................................................52Shape Tesuji...................................................................................................................................................53

Ear-cleaning tesuji (mimi-souji).............................................................................................................53Shortage of Liberties Tesuji.............................................................................................................................54

Snapback (utte-gaeshi).........................................................................................................................54Double snapback..................................................................................................................................55Move one space further with snapback................................................................................................56Belly Attachment tesuji..........................................................................................................................57Twirl......................................................................................................................................................58

Yose Tesuji......................................................................................................................................................59Endgame Tesuji 1.................................................................................................................................59

Miscellaneous.................................................................................................................................................60

Sente getting tesuji...............................................................................................................................60Wedge (warikomi).................................................................................................................................61Sources...........................................................................................................................................................62


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Attacking

Driving tesuji

Black to playSGF: tesuji-driving-1


White to playSGF: tesuji-driving-3


White to playSGF: tesuji-driving-5

Black to playSGF: tesuji-driving-

















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Eye stealing tesuji (bata bata tesuji)

White to playSGF: tesuji-eye-stealing-1



White to play

SGF: tesuji-eye-stealing-4

Black to playSGF: tesuji-eye-stealing-


















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Shortage of liberties (damezumari)Shortage of liberties is an acute lack of liberties. The player suffering from shortage of liberties is unable toachieve a desired objective because to achieve that objective

Black to playSGF: tesuji-shortage-liberties-1

Black to playSGF: tesuji-shortage-liberties-2

White to playSGF: tesuji-shortage-liberties-3

White to playSGF: tesuji-shortage-liberties-4

Black to playSGF: tesuji-shortage-liberties-


















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Throw in (horikomi / uchikaki)A throw-in is a sacrifice stone played at the point where the enemy wants to connect, giving rise to a falseeye, shortage of liberties, snapback, oiotoshi (connect-and-die), or squeeze.

Black to playSGF: tesuji-throw-in-1


White to playSGF: tesuji-throw-in-3



Black to playSGF: tesuji-throw-in-

















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Capturing

Connect-and-Die (oi-otoshi)Oi-otoshi describes a situation where a stone or group of stones is put into atari in such a way that there isno escape. This occurs usually when the only way to save such a group is to connect, and that the resultinggroup is still in atari. Hence the related English terminology, connect-and-die

Black to playSGF: con-n-die-1

White to playSGF: con-n-die-2




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Crane's nest (tsuru no sugomori)The crane's nest tesuji is a classic tesuji used to capture fleeing stones. By default these stones are deadand the nest-holder only need to respond in case of white intervention.

White to playSGF: tesuji-cranes-nest-1





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Ladder

Straight ladder (shicho)A straight ladder is a technique for capturing stones. At each step the attacker reduces the defender'sliberties from two to one.

Black to playSGF: tesuji-ladder-straight-1



Black to playSGF: tesuji-ladder-straight-













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Loose ladder (yurumi shicho)In a loose ladder the stones to be captured have at most three liberties, and are constantly reduces back totwo liberties, then finally caught against side and captured.

Black to playSGF: tesuji-ladder-loose-1

Black to playSGF: tesuji-ladder-loose-2

White to playSGF: tesuji-ladder-loose-3

Black to playSGF: tesuji-ladder-loose-













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Net (geta)A net is a technique where one or a few stones are captured by blocking the exits. A guiding principle is,generally, the firmer capture the better, unlesss building moyo. Leaving less room for bad aji.

White to playSGF: tesuji-net-1



Black to playSGF: tesuji-net-4







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White to playSGF: tesuji-net-












White to play

SGF: tesuji-net-

White to play

SGF: tesuji-net-

White to play

SGF: tesuji-net-





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Raccoon-dog drums his belly (tanuki no hara tsuzumi)

Black to playSGF: tesuji-raccoon-dog-1

Black to playSGF: tesuji-patting-the-racoon-2

Black to play (respond to white 11)SGF: tesuji-patting-the-racoon-3

Black to play

SGF: tesuji-patting-the-racoon-4

White to playSGF: tesuji-patting-the-racoon-















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Squeeze (shibori)The squeeze tesuji is a play by which you squeeze the opponent's stones into an inefficient dumpling shape.Often a successful squeeze includes sacrificing one or more stones to make the opponent's shape bad first.

The squeeze wrings out the liberties of a group of your opponent's stones by a combination of atari movesand/or atari threats.

Black to playSGF: tesuji-squeeze-1

White to playSGF: tesuji-squeeze-





















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Connecting techniques

Tactical connection

Bamboo joint (take fu)


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Box connection


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Bridge under (watari)

First line connection


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Second line connection


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First line ogeima connection


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Keima side connection


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Cut threat clamp


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Connecting by capturing

Ponnuki


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Tortoise shell


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Double crosscut to connect


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Diagonal connection (kosumi)


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Good eye potential

Mouth shape


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Parallelogram


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Table shape


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Tippy table


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Square good shape


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Keima protecting the cutting point


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Tiger (mouth) shape

Hanging connection


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Trumpet connection


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Honeycomb


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Solid

Solid connection (simple connection)


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Strategic connection

Elephant jump


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Extension

Two-space extension

Three-space extension


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Jump

One-space jump

Two-space jump


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Knight's move

Small knight's move

Large knight's move


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Lion shape


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Underneath attachment


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Defending

Winning race.

Under the stones (ishi no shita)


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Descent


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Ugly descent / ugly sagari


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Making eyes or eye-space

Placement preventing the tower peep


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Miai Tesuji

Grappling hook tesuji


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Nose tesuji / nose attachment (hana-zuke)


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Clamping tesuji (hasami tsuke)


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Double threat


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Shape Tesuji

Ear-cleaning tesuji (mimi-souji)


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Shortage of Liberties Tesuji

Snapback (utte-gaeshi)


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Double snapback


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Move one space further with snapback


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Belly Attachment tesuji


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Twirl


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Yose TesujiTesuji from common end-game situations.

Endgame Tesuji 1


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Miscellaneous

Sente getting tesuji


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Wedge (warikomi)


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SourcesSensei's Library - http://senseis.xmp.net/

Documents

Catcher v12