Acid Ape Chess is the multi-purpose chess suite aimed at the serious player. Acid Ape Chess is organized with a tools philosophy in mind. You can leverage its modular design to perform common and less common chess-related tasks. Acid Ape Chess focuses on: quality; Elegance; Ergonomics; Versatility. Some Acid Ape Chess features: Online chess. Play on FICS, ICC and Lichess.