noun
A go term for a capturing technique where stones are chased in a zigzag pattern. Usually written in kana.
シチョウで相手の石を取った。
I captured my opponent's stones with a ladder.
この形はシチョウが成立しない。
In this shape, the ladder doesn't work.
The term シチョウ comes from the go technique's resemblance to a ladder. The kanji 征 means 'subjugate' or 'attack', and 四丁 literally means 'fourth block', but the word is now almost always written in kana.