Is there a site where I can learn more about Freecell in general?
Try wgreview’s site. Q: The Prediction feature appears to have a bug. I got into a position where I obviously couldn’t win the game, and it didn’t warn me that the game was lost. A: It’s not broken. Really. It’s not. To be sure a game is still winnable, use the “Predict Once” menu option, with at least 8,000 lookahead states. If it still doesn’t warn you, then there is a way to win, believe it or not!