Every card face up from the first move. Nothing is hidden, so nothing is luck.
FreeCell deals all fifty-two cards face up across eight columns and gives you four free cells to park a card in while you dig. Because there is no stock and nothing is hidden, every game is a puzzle you can actually solve rather than a hand you hope for — which is why FreeCell is the solitaire people play when they want to think.
In Klondike a third of the cards start face down and the stock decides how the game goes. FreeCell has neither: you see everything from the start, so a lost game is a misplay you can learn from, not a bad deal. The trade is that you must plan several moves ahead, because a cell you fill carelessly is a cell you cannot use later.
The goal is to move all fifty-two cards to the four foundations, each built up from Ace to King in one suit.
Unlike Klondike, where a large share of random deals are impossible, essentially every FreeCell deal has a solution. If you lose, the cards were not against you — so use undo, take the game back, and find the line you missed.
Very nearly. Out of the classic numbered deals only one is known to be unsolvable, and among random deals the unsolvable ones are a tiny fraction of a percent. In practice, if you lose you can win that same deal by playing it better.
One plus the number of empty free cells, doubled for every empty column. With two cells free and one empty column you can shift six cards. Moving a run into the empty column itself does not count that column, so it moves fewer.
Any card at all. That is a real difference from Klondike, where only a King may start an empty column, and it is why an empty column is such a powerful thing to hold in FreeCell.
No. It runs in the browser on a phone, a tablet or a computer. You can also add it to your home screen and it will open like an app and work offline.
Yes, completely, and there is no account to create.