Contest for influence in which both players build walls (probably with defects) up into the centre. Takes getting ahead to its logical conclusion. (See push.)
A neglected concept in the literature.
A passage from a game Aragaki Takeshi-Hikosaka Naoto in the 1983 Kisei. This is a clear-cut sequence in the focal area at the junction of black and white frameworks.
The player who is ahead in the pushing battle has the option: hane or extend (nobi).
In this type of pushing battle, hane makes points - the line of demarcation between frameworks is being decided. Therefore players try to play hane; but there are tactical constraints.