The Richard Riordan Chess Festival was sponsored by the former mayor of Los Angeles and included various tournaments for players of different levels: Chessdom articleLưu trữ 2016-03-04 tại Wayback Machine
The Richard Riordan Chess Festival was sponsored by the former mayor of Los Angeles and included various tournaments for players of different levels: Chessdom articleLưu trữ 2016-03-04 tại Wayback Machine