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.

Justin Li Tops The Most Improved Players List

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

If you're not receiving OSCO Scholastic Chess Update email messages, email to get on the list

IMPORTANT: Due to a high probability of unsafe driving conditions in Oklahoma this Saturday, the chess tournament is being delayed one week until 15 December. Aside from that, everything else in the event information linked in the left sidebar remains the same. If you're pre-paid and unable to participate a week later, email admin@okschess.org for a refund. We hope to see you 15 December at Cheyenne Middle School in Edmond.

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Oklahoma's Past National Invitational Representatives

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The OSCO website is being entirely updated. It will take some time to complete and pages not yet ready will display this construction page. Thank you for your patience.