It is possible to challenge a player to a game in the player list. To do this a player has to be selected by clicking his name, followed by a click on the button Challenge. The conditions for the game are laid out in the dialog Challenge.

 

 

In the Challenges window you can click the button Offer to send a challenge to every available player in the room.

 

The dialog for an Offer has the format:

 

 

You can define a range for time controls that you are prepared to play. In the above example you have said that you are prepared to play games that last between 5 and 10 minutes. There is no time gain per move, ie the Fischer clock is not being used.