Solitaire Chess Free is a challenging app for iOS. I also mentioned the boardgame that can be purchased at Mindware in my last post. In both versions, the object of the one-player game is to capture all of the pieces on the board until there is only one left. Every move has to result in a capture. This is a nice way for kids to learn the appropriate moves for each of the chess pieces, and to practice thinking ahead. There are increasing levels of difficulty, which means that students can quickly move to the level that best fits their needs.