FlipFlop is a game similar to Reversi with additional features: - A study feature allows you to train different topics by playing FLIPFLOP: You may load a question file into the game board. When you now click on certain fields to do your next move, you have to answer a question first. Some example question files are included. You can create your own with the program QUIZ. - Up to 4 people may play simultaneously. - The time to think about your next move can be limited. - You can switch the interface between English and German. More languages are supported.