An attempt to win a trick with the lower ranking card when leading towards a tenace.
For example:
![](https://bernardmageebridge.com/wp-content/uploads/2021/11/image-109.png)
If West has the king, this suit will yield two tricks if South leads towards the tenace, playing the queen unless the king appears. A finesse position arises in a number of different forms, but all of them depend on the assumption that a particular missing card or cards lie in a certain hand.