F
Flag Fall

Flag Fall means that a player's time has expired on a digital or analog clock. Under the appropriate conditions, this results in the loss of the game.
Practical Importance
- It is very common in blitz and rapid games.
- A superior position on the board can be undone by running out of time.
- Calling the arbiter and monitoring the clock can sometimes become critical.
For players, time management means not only finding the right move, but also avoiding flag fall.