In 1977, Harry Golombek said "The work became popular at once and for over forty years was regarded as the main book on the openings throughout the world.
"[2] The first three editions (1911, 1913, and 1916) were the work of Griffith (who won the 1912 British Championship) and White, with an introduction by Henry Ernest Atkins.
Fine was not able to work on subsequent editions of MCO, so in 1948 he wrote Practical Chess Openings.
American Walter Korn worked on the seventh through thirteenth editions, assuming editorship starting with MCO-8 in 1952.
John Watson wrote that MCO-13 "really isn't up to modern expectations",[3] but called MCO-14 "a vast improvement over its predecessor No.