With a three day game (correspondence chess) rating of 1917 on chess.com I am in the 98% percentile of players on this site with millions of members, including world class players. I am not officially ranked on FIDE or USCF and do not participate in tournaments. I do, however, have a higher level understanding of the greatest game and absolutely love teaching it. Sometimes this can be just as a release from math, possibly as a reward for a hardworking student, or as a subject unto itself. Chess really does teach us very valuable lessons about concentration, patience and life in general!