Black Hole Solitaire

How to Play

Start the game by placing the black hole card at the center of the playing area. Arrange the black hole with an arrangement of face-up cards. Move cards to the black hole by choosing a card that is one value higher or one value lower than the current top card of the black hole. Proceed this sequence until all cards are transferred to the black hole or no more moves are possible. Use the undo button to take back your last move if needed. Complete the game by removing all cards to the black hole. Challenge yourself by striving to complete the game in as few moves as possible.