The Auto-Queen option

Checking this box will cause all pawn promotions to be automatically a queen. It can be toggled on and off in the Playing 2 tab of the Settings Dialog.

This is useful for bullet players, since the time taken to choose which piece to promote to can cause instant temporal catastrophy, especially given that in regular chess underpromotions are so rare. However, note that if you play Loser's Chess with this box checked, you will lose far too often...

See Also:
Other Settings