adas ▁Mik ė nas ▁and ▁a ▁ 1 6 - year - old ▁Tig ran ▁Pet ros ian . ▁ ▁K eres ▁returned ▁to ▁international ▁play ▁in ▁ 1 9 4 6 ▁in ▁the ▁Soviet ▁radio ▁match ▁against ▁Great ▁Britain , ▁and ▁continued ▁his ▁excellent ▁playing ▁form ▁that ▁year ▁and ▁the ▁next ▁year . ▁Even ▁after ▁he ▁res umed ▁a ▁relatively ▁normal ▁life ▁and ▁ch ess ▁career , ▁however , ▁his ▁play ▁at ▁the ▁highest ▁level ▁appears ▁to ▁have ▁been ▁affected ▁by ▁living ▁under ▁the ▁occupation ▁of ▁the ▁Soviet ▁Union , ▁which ▁at ▁a ▁minimum ▁must ▁have ▁ag gra v ated ▁the ▁stress ▁of ▁playing ▁under ▁the ▁watch ful ▁eye ▁and ▁tight ▁control ▁of ▁the ▁Soviet ▁ch ess ▁hierarchy . ▁ ▁World ▁Championship ▁C andid ate ▁( 1 9 4 8 – 1 9 6 5 ) ▁Although ▁K eres ▁participated ▁in ▁the ▁ 1 9 4 8 ▁World ▁Championship ▁tournament , ▁arranged ▁to ▁determine ▁the ▁world ▁champion ▁after ▁Ale kh ine ' s ▁death ▁in ▁ 1 9 4 6 , ▁his ▁performance ▁was ▁far ▁from ▁his ▁best . ▁H eld ▁joint ly ▁in ▁The ▁H ague ▁and ▁Moscow , ▁the ▁tournament ▁was ▁limited ▁to ▁five ▁participants : ▁Mik h ail ▁Bot v inn ik , ▁Vas ily ▁Sm ys lov , ▁Paul ▁K eres , ▁Samuel ▁Res he v sky , ▁and ▁Max ▁Eu we . ▁( Re uben ▁Fine ▁had ▁also ▁been ▁invited ▁but ▁decl ined .) ▁The ▁event ▁was ▁played ▁as ▁a ▁qu int u ple ▁round - ro