Yes. Solitaire is free to play in your browser on ArcadeWhale, with no download, no sign-up and no payment. Open the page and a game is dealt.

This is Klondike Solitaire, the classic single-deck version that comes bundled with most computers and is what most people mean by "Solitaire". Cards stack down in alternating colours in the tableau and build up by suit from Ace to King on the foundations.

No. In Klondike Solitaire some deals cannot be solved no matter how well you play — that is a normal part of the game. Studies of the game put the share of winnable deals somewhere around 80 percent, with skilled play winning a good deal fewer than that in practice.

Drag a card or a sequence to where you want it, or double-click a card to send it straight to a foundation pile if it has a legal spot there. Click the stock pile in the top left to deal new cards when you run out of moves.

No. As soon as every card in the tableau is face up, a gold Finish button appears and plays out the rest of the game for you. At that point the deal is already won — with no face-down cards left, every column is a clean descending run and no move can go wrong — so the button is only removing busywork, never making a decision for you. Press it again to stop, or just keep playing by hand if you prefer.

Yes. There is an undo button, so a misclick or a move you immediately regret is not the end of the game. You can also start a fresh deal at any time with the new game button.