The other standard way to win (besides checkmate) is when your opponent cannot continue the game according to the rules —most commonly by resigning or losing on time.

Since you asked for “the other way,” here’s the one most people mean:

In normal chess talk, apart from checkmate, you win when your opponent resigns the game.

But officially there are a few non-checkmate wins:

  • Your opponent resigns (they give up in a lost position).
  • Your opponent runs out of time on the clock in a timed game.
  • In some rule sets, your opponent commits two illegal moves , which can also award you the win.

So if this is for a quick quiz-style “one other way” answer, the safest single answer is: resignation.