The Chess.com Open 2026 is the world's biggest open chess event and a marquee tournament on the Champions Chess Tour, featuring 16 of the world's best players — including Magnus Carlsen, Arjun Erigaisi, and Nodirbek Abdusattorov — competing for a $234,000 prize pool. Beyond the prize money, the stakes couldn't be higher: the top three finishers earn direct qualification to the Esports World Cup 2026