The Oklahoma Scholastic Chess Organization’s website states: OSCO is now using Chess eXpress Ratings service for all sections of all its tournaments. CXR (Chess Express Ratings) is a chess rating and statistical service. We are in the business of...
The Oklahoma Scholastic Chess Organization’s website states: OSCO is now using Chess eXpress Ratings service for all sections of all its tournaments. CXR (Chess Express Ratings) is a chess rating and statistical service. We are in the business of...