itions ▁grew ▁and ▁the ▁fif teenth ▁and ▁most ▁recent ▁version ▁is ▁ 7 6 8 ▁pages . ▁ ▁In ▁ 1 9 7 7 , ▁Harry ▁Gol om bek ▁said ▁" The ▁work ▁became ▁popular ▁at ▁once ▁and ▁for ▁over ▁forty ▁years ▁was ▁regarded ▁as ▁the ▁main ▁book ▁on ▁the ▁open ings ▁throughout ▁the ▁world ." ▁ ▁The ▁first ▁three ▁ed itions ▁( 1 9 1 1 , ▁ 1 9 1 3 , ▁and ▁ 1 9 1 6 ) ▁were ▁the ▁work ▁of ▁Griff ith ▁( who ▁won ▁the ▁ 1 9 1 2 ▁British ▁Championship ) ▁and ▁White , ▁with ▁an ▁introduction ▁by ▁Henry ▁Ernest ▁At kins . ▁Ed itions ▁through ▁at ▁least ▁ 1 9 4 6 ▁continued ▁to ▁be ▁attributed ▁to ▁Griff ith ▁and ▁White , ▁with ▁P . ▁W . ▁Serge ant ▁and ▁Maurice ▁Edward ▁Gold stein ▁providing ▁revis ions ▁starting ▁with ▁the ▁fourth ▁edition ▁in ▁ 1 9 2 5 . ▁In ▁ 1 9 3 9 , ▁Re uben ▁Fine , ▁who ▁had ▁won ▁the ▁AV RO ▁tournament ▁the ▁year ▁before , ▁edited ▁M CO . ▁ ▁Fine ▁was ▁not ▁able ▁to ▁work ▁on ▁subsequent ▁ed itions ▁of ▁M CO , ▁so ▁in ▁ 1 9 4 8 ▁he ▁wrote ▁Pract ical ▁Ch ess ▁Open ings . ▁As ▁Pract ical ▁Ch ess ▁Open ings ▁was ▁not ▁re vised ▁in ▁any ▁further ▁ed itions , ▁M CO ▁remained ▁the ▁most ▁popular ▁English ▁language ▁opening ▁reference . ▁ ▁American ▁Walter ▁K orn ▁worked ▁on ▁the ▁sevent h