9 ), ▁. ▁Black ▁reve als ▁a ▁series ▁of ▁brilliant ▁tact ical ▁surprise ▁moves , ▁con cluding ▁eleg antly ▁against ▁the ▁former ▁world ▁champion . ▁K eres ▁vs . ▁Jar oslav ▁Š aj tar , ▁Amsterdam ▁ 1 9 5 4 ▁( ol ), ▁Sic ilian ▁Def ence , ▁Naj dorf ▁Vari ation ▁( B 9 4 ), ▁ 1 – 0 . ▁A ▁typical ▁Sic ilian ▁sacrifice ▁on ▁e 6 ▁leads ▁to ▁swift ▁. ▁K eres ▁vs . ▁Mik h ail ▁Bot v inn ik , ▁Moscow ▁ 1 9 5 6 ▁( A le kh ine ▁Memorial ), ▁Sic ilian ▁Def ence , ▁Class ical ▁Vari ation , ▁Rich ter – R au zer ▁Att ack ▁( B 6 3 ), ▁ 1 – 0 . ▁K eres ▁had ▁a ▁minus ▁score ▁against ▁Bot v inn ik , ▁but ▁here ▁he ▁defe ats ▁the ▁world ▁champion ▁in ▁convin cing ▁ ▁style . ▁K eres ▁vs . ▁Ed gar ▁Wal ther , ▁Tel ▁Av iv ▁ 1 9 6 4 , ▁King ' s ▁Indian ▁Def ence , ▁Pet ros ian ▁Vari ation , ▁K eres ▁Vari ation ▁( E 9 3 ), ▁ 1 – 0 . ▁The ▁game ▁where ▁K eres ▁introduced ▁a ▁new ▁plan ▁against ▁the ▁King ' s ▁Indian : ▁B g 5 , ▁h 4 , ▁N h 2 ▁and ▁a ▁sacrifice ▁on ▁g 4 . ▁ ▁Tournament ▁and ▁match ▁record ▁K eres ' ▁tournament ▁and ▁match ▁record : ▁ ▁Tourn aments ▁{ | ▁class =" wik