Ultimate Chess is a challenging chess game. The popular series The Queen’s Gambit is drawing a lot of new people into the world of chess. This board game is playable in 2-player mode, but you can also challenge an AI-opponent. The AI has four difficulty settings, where green is the easiest and red is the hardest. This game also has a number of extra features. Players can adjust the size of the board (8x8 or 6x6) and switch between a 2D and 3D view.