The Story of Solitaire Win Rates

How often can you win?

In Klondike, some deals are simply unsolvable depending on the shuffle. The proportion of deals that are actually solvable (the theoretical maximum win rate) is estimated at roughly 80% or more for Draw 1.

However, it's hard for a person to play optimally, so real win rates are lower than that. Testing different moves with undo can push your win rate higher.

Draw 3 has a lower theoretical win rate because of its limited access. Knowing that "some deals can't be won" lets you enjoy the game with peace of mind.