In the grappling hook tesuji^[1], a player uses the diagonal jump of to attach behind an opponent's stone.

This is usually played when pushing through at a is a bad move for white, and is generally a light play, where black is willing to sacrifice either or

Table of contents Examples from Joseki Hamete/Handicap-Joseki Examples from professional play Oldest recorded use Example game 1 Example game 2 Example game 3

Table of diagrams Tesuji Hamete? Guo Fan (W) - Li Baixing c. 1100 Guo Fan - Li Baixing (ii) Guo Fan - Li Baixing (iii) Guo Fan - Li Baixing (iv) [Ishida Akira] (W) - Nakano Yoshihiro, 2001 Skillful play Ishida - Nakano (game continuation) Ishida - Nakano (game continuation II) [O Rissei] (W) - [Kajiwara Takeo] O - Kajiwara (ii) O - Kajiwara (iii) [Shimamura Toshihiro] (W) - [Kitani Minoru] Shimamura - Kitani (ii) Shimamura - Kitani (iii)

Examples from Joseki

• 3-5 point low approach, pincer, attach on approach, develop on both sides
• 4-5 point 4-3 approach inside contact, follow-ups (diagram 3)

Hamete/Handicap-Joseki

tderz: The Chinese translation of a Korean book just used 碰 pèng - attach to the side
and not the thinkable 'jump-attach' or 'elephant(-jump)-attach' .

Examples from professional play

Oldest recorded use

Herman: Oldest use of this tesuji that I can find is Guo Fan - Li Baixing, played around 1100 CE and recorded in one of the oldest extant books on go, Wangyou Qingle Ji (this game can be found in GoGoD as 1150C&IP09)

With , white threatens to connect under. After black prevents this, white uses the grapping hook tesuji with with the purpose of making life in the corner. black prevents white from connecting, after which white plays the hane of , which is also a grappling hook from the point of view of .

Heavy fighting breaks out, with neither player giving an inch

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With , white finally secures life in the corner.

Example game 1

looks like a new move in this joseki.

Herman: Black is willing to sacrifice either or / in exchange for a good result here. Many players might be tempted to play a, but that will give white a bad result

Herman: If White plays in response to , black sets up a driving tesuji with . White will now either have to sacrifice , giving black a ponnuki in the center, or suffer severe damage to his corner through the sequence shown.

In the game, White played , preventing the possibility of a driving tesuji. With this option gone, black defended the weakness of his diagonal jump, and play continued as shown.

Example game 2

- show Kajiwara's creativity. After White looks a bit overconcentrated on the left side.

So Black can freely sacrifice the marked stones.

The tesuji of is the same concept of some suboptimal variation of the 4-4 point double kakari joseki. (See easy way out of a double kakari.)

Example game 3

shows Kitani's creativity. forces White low on the top side.