OKSChess.org
Scholastic Extension of the USCF State Chapter Oklahoma Chess Association.

OSCO tournaments are rated with Chess eXpress Ratings, plus USCF for Premier Sections, with no membership fees.

Interview with Oklahoma's own Veronika Zilajeva - NGIT Champion!!


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IMPORTANT: OSCO 2018-2019 Rule Changes. Registration fees, New Club Teams, New Awards, Sections at Non-Championship Events, Qualification and Tiebreaker Rules for National Invitationals, OSCO Board

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