The Chessmaster (real name unknown) is a major precog and high level member of the Syndicate. He would like to consider himself the best, and constantly tries to prove that he's better than Mrs. Potter, his former teacher. He appears in a bit of foreshadowing at the end of A Simple Game, and has a major part in the Halloween invasion.
His uniform seems to be patterned after a chessboard. He uses a chessboard as part of his forecasting technique. Deathlist is his lover and servant. He's got his own force of cyborgs, called the Chessmen. As of the middle of January, 2007, the head of the Syndicate says he's put a bounty of $10 million on the Chessmaster for his part in the Halloween invasion.