Aha Trivia Stuff Everyone Should Know
Aha Trivia: Stuff Everyone Should Know · ahatrivia.com/mb-chess-6c6b02ee12b5

What does the symbol # mean in notation?

Checkmate.

Start playing free

  1. Check
  2. Blunder
  3. Checkmate ✔

Why: A # suffix shows that the move delivered checkmate.

Huh, didn't know that: A # suffix shows that the move delivered checkmate.

The dad joke
Hash tag means the game is over!
Like this card?
Play the game

References

Answer: Checkmate. A # suffix shows that the move delivered checkmate.

  1. Chess en.wikipedia.org/wiki/Chess
    Checkmate can be indicated by suffixing "#"
    Checked 2026-11-07.

Think this answer is wrong? Tap "Challenge this answer" on the card in the game and tell us why.

Kids SkillsHow many squares are on a chessboard?Kids SkillsHow many pieces does each player start with?Kids SkillsWhich piece moves in an L shape and can leap over others?

That's stuff everyone should know.