Ethan Michael Cross (born May 4, 2004) is a Robloxian chess grandmaster and the current World Chess champion under the International Roblox Chess Association (IRCA). Cross had won the Roblox Chess Championship in 2026, after defeating then-champion Victor Kovalenko by a score of 8½–6½. Cross is regarded as one of the leading chess players of the mid-2020s and is known for a positional playing style. Cross became a grandmaster in 2020 at the age of 16, making him one of the youngest chess grandmasters in history. Cross has an IRCA rating of 2744 which was achieved in 2024.