Perpetual Check

In the game of chess, perpetual check is a situation in which one player can force a draw by an unending series of checks. Such a situation typically arises when the player who is checking cannot deliver checkmate; while failing to continue the series of checks gives the opponent at least a chance to win. A draw by perpetual check is no longer one of the rules of chess. However, such a situation will eventually result in a draw by either threefold repetition or the fifty-move rule, but usually players agree to a draw (Burgess 2000:478).

Perpetual check can also occur in other chess variants, although the rules relating to it may be different. For example, giving perpetual check is not allowed (an automatic loss for the giver) in both shogi and xiangqi.


Read more about Perpetual Check:  Examples, History

Famous quotes containing the words perpetual and/or check:

    I can reason down or deny everything, except this perpetual Belly: feed he must and will, and I cannot make him respectable.
    Ralph Waldo Emerson (1803–1882)

    Every sect is a moral check on its neighbour. Competition is as wholesome in religion as in commerce.
    Walter Savage Landor (1775–1864)