noun
shoulder hit
In go, a move where a stone is placed diagonally adjacent to an opponent's stone, often used to reduce or attack. The term is usually written in kana.
白がカタツキを打って、黒の模様を削った。
White played a shoulder hit and reduced Black's framework.
Compound of 肩 (kata, 'shoulder') and 突き (tsuki, 'thrust' or 'hit'), referring to the shape of the move resembling a shoulder strike.