JLPT N1
一局
It means “one game” or “one round.” It’s almost always used for strategic board games like Go and Shogi.
Readings
Other forms
1局 using an Arabic numeral
Noun, Counter
One Game / One Round
A single match or round of a board game, especially traditional Japanese games like Go (囲碁), Shogi (将棋), or Mahjong (麻雀).