Oklahoma Scholastic Chess Organization (OSCO)
A statewide organization, operated by a group of service oriented volunteers, to promote and improve scholastic chess for Oklahoma's youth.

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chesscorner.com entered by user 21859509
idafreemanchess.com entered by user 11389697
idafreemanchess.com entered by user ditto
north elementary school in bixby ok entered by user 1916369
north elementary school in bixby ok entered by user ditto