Day Of Endgames Sees Caruana Join So At Top; Lee Sole Leader In Women's

It was a day of endgames in round four of the 2026 U.S. Chess Championship, with GM Fabiano Caruana scoring a long grinding win over GM Ray Robson to join GM Wesley So in the lead on three points. In other games, GMs Jeffery Xiong, Grigoriy Oparin…