Use the keyboard A, W, D, S or arrow keys Left, Up, Right, Down, and mouse button - if the game description "Black Widow Solitaire" is not stated otherwise.
Black Widow Solitaire
Description: Variant on the classic Spider Solitaire card game. Create sequences of cards in suit from King to Ace to remove them from the game. You can move a card or a valid sequence (independent of color) to an empty spot or to a card 1 higher in value. Click on the stack (top left) to get new cards.