When you can no longer make progress in a solitaire game but you haven’t won yet, you are “stuck” or “blocked.” Solitaire Till Dawn can tell you when you are stuck, either automatically or when you ask.
To ask, choose Am I Stuck? from the Play menu.
The "Stuck" icon in the status bar.
The automatic notification is a small icon in the status bar, a picture of a card with a red X over it. You can also choose to have Solitaire Till Dawn play a sound whenever you become stuck.
You can turn the notification and sound off if you prefer not to be told automatically when you are stuck.
Open the Preferences window to the Sound pane and select “Play a sound when I’m stuck” to turn the sound on or off.