Short Answer
Not all deals are winnable, even with perfect play. Klondike contains hidden information and randomness.
The Daily Challenge keeps the seed fixed for fairness. This means everyone plays the same deal, but some days can still be unwinnable.
Why Some Deals Are Hard
Cards can be locked behind sequences or blocked by suit order. Strategic choices still matter, but luck plays a role.
What You Can Control
Focus on uncovering hidden cards, avoid premature foundation moves, and use undo to test alternatives.