棋戦

1. Origins, structure, and basic meaning

• Structure: 棋戦 is read as きせん and is a noun for an official Go or shogi tournament in which players compete for a championship or title.
• Basic usage: Use 棋戦で優勝を争う for competition within the event and 主要な棋戦で決勝に進む for reaching a tournament stage.

2. Common pitfalls and similar expressions

• Go and shogi scope
  • In these examples it is an established competition for Go or shogi professionals, not a generic event for every board game.
• Match versus tournament
  • 対局 is an individual game between players, while 棋戦 is the broader event composed of matches and rounds.