戦術

1. Origins, structure, and basic meaning

• Structure: 戦術（せんじゅつ） means a concrete method used to achieve an aim in a contest or game.
• Basic usage: Use it for changing an approach during a match or discussing how to overcome an opponent's defense.

2. Common pitfalls and similar expressions

• Strategy versus tactics
  • 戦略 focuses on the broad approach to an overall goal; 戦術 focuses on concrete methods used in particular situations.