Cut across
Abstract treatment
cuts by striking across the keima, away from the supporting black stones. This is generally preferable to cutting at a. White can dodge the cut by answering at b rather than a:
This ( and
) is not necessarily the continuation, but by playing the hane away from the position, White limits the loss to
.
Not striking across the keima, but cutting at as in this diagram is considered vulgar, since White sacrifices
easily to build good shape. Black has captured but one stone.
White's natural moves are good moves: blocking at , and either sacrificing
in order to make shape as in this diagram, or extending as in the next diagram:
If the surrounding position is strong enough, White can extend (stretch).
This is unlikely to occur, however, for if White were strong around, Black should not want to cut through the keima anyway.
Examples
Example 1: Sacrifice
![[Diagram]](../../diagrams/38/5460d0ba5842e2e1561b6049a627d71a.png)
Ito Showa (W) vs. Yasui Sanchi
Black uses not one, but two tsukekoshi in a row to make life.
Example 6: Sabaki
Linguistic notes
The Japanese term tsuke-koshi is literally attach across. For some time we have used waist cut but this is not necessarily standard terminology.
In Chinese, alone is called 跨 (kuā), the
-
-
sequence is called 跨断 (kuā duān). The character 跨 (kuā) means "straddle", and the character 断 (duān) means "cut".