Zeitnot

In chess played with a time control, time trouble, time pressure, or its German translation Zeitnot, is the situation where a player has little time to complete the required moves. When forced to play quickly, the probability of making blunders is increased, so handling the clock is an important aspect of chess playing. The last move of the time control (often move 40) is especially prone to blunders if players only have a few seconds to play it, and many games have been lost due to poor time management in time pressure.