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Diagonal jump
Keywords: Shape
The shape created by the two White stones is called hazama tobi in Japanese. Usually it is a bad shape, as it can easily be cut apart. At special circumstances, though, it can be very powerful, but you should have an answer ready if your opponent plays in the middle (the marked point). It is also called an elephant's move, because the elephant in Chinese chess moves this way. In joseki, there are two main uses from the 3-4 point.
This pincer isn't often played now, so
This furikawari idea is a typical sequel.
This is still current as joseki.
This leads to a large-scale sacrifice variation known as the Kajiwara joseki. White gives up around 20 points in the corner for the sake of imperfect outside influence. Not an easy line in practice. It is still being played by the pros.
White can also play this way for the corresponding 4-4 pincer.
White probably played that way to gain influence; so Black 1 and so on are natural, starting a pushing battle in the centre. Black has to be careful not to create difficulties for the corner 4-4 stone, though. It isn't easy to say when Black can or should stop pushing.
Frs: Does a Japanese, English or animal Go term exist for Black's shape or/and
Sebastian: How about "Mammoth"? For Chinese, I'd propose "猛傌", pronounced "mengma". (This would mean mammoth, if the second character were "獁". By replacing it with the old character for "knight in chess" - which is pronounced the same way - it now reads "fierce knight".)
See also: Authors This is a copy of the living page "Diagonal jump" at Sensei's Library. ![]() |