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2021 Tucson Open - Premier USCF 1800+
2021 Tucson Open - Premier USCF 1800+ 15 membri
Region IV Chess Club
Region IV Chess Club 90 membri
Chess Helps Fundraiser for US Chess - Open
Chess Helps Fundraiser for US Chess - Open 28 membri
United States Chess School
United States Chess School 166 membri
Chess Helps Fundraiser for US Chess - U2000
Chess Helps Fundraiser for US Chess - U2000 23 membri