Check and checkmate facts for kids

Kids Encyclopedia Facts
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The black king has been checkmated; the game is over.

Check is a term in chess when a player's king is attacked. If the king is in check, the player must find a way to stop the threat; he can not just ignore it. The player must do one of these things:

  • Capture the checking piece (with the king or another piece).
  • Interpose: put a piece between the checking piece and the king. This only works if the checking piece is a long-distance piece (bishop, rook or queen).
  • Move the king to a square which is not threatened.

If none of these works, then it is not a check but checkmate.


A smothered mate
Start of chess board.
g8 black rook h8 black king
f7 white knight g7 black pawn h7 black pawn
h3 white pawn
g2 white pawn h2 white king
End of chess board.

Checkmate (often called mate) is when a player's king is attacked (in check) and there is no way to meet that attack. Or, simply put, the king is under attack and cannot get out of being captured. Giving checkmate is the main goal in chess: a player who is mated loses the game.


These rules have been part of chess since its beginning. Until the early 20th century is was customary to announce "Check!" verbally when making the move. It would be regarded as strange today; players do not address each other in competitive chess except where necessary.

Until the 19th century it was customary to warn one's opponent when attacking his queen: "Check to the queen!" Most players today do not know this was ever done.p74

Check and checkmate Facts for Kids. Kiddle Encyclopedia.