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Isaac Boleslavsky vs Yuri L Averbakh
Zurich Candidates (1953), Zurich SUI, rd 13, Sep-22
Queen's Gambit Declined: Ragozin Defense (D38)  ·  1/2-1/2

ANALYSIS [x]

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Kibitzer's Corner
Mar-26-03  Rookpawn: Black's bishop after move 26 is a real example of a "bad bishop": all of black's pawns are on the same color as his bishop.
Nov-13-16  cwcarlson: Bronstein gives 16...de 17.Ne4 Qg6 18.Bd3 Bf5 19.Nh4 Qh5 20.Nf5 Nf5 21.Nd6 Nd6 22.Qc7, but 20....Qh2# is better.
Mar-24-19
Premium Chessgames Member
  manselton: This game features in Shereshevsky's <Endgame Strategy> 21.Rc3 making way for Nd2-b3-c5.


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Black's reply 21...Rf8 to prepare ...f6 looks poor. Surely 21...Nf5 attacking the undefended pawn is much better.

Mar-24-19
Premium Chessgames Member
  manselton: 22.Re1


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Now if 22...f6?! 23.e6! Bxe6? 24.Re3 skewering B+N. Black may have to try 23...f5 impeding his own Bishop but isolating the pawn on e6. It's difficult and complicated.

Mar-24-19
Premium Chessgames Member
  manselton: 23.Bd3


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<Black has changed plan. Instead of ...f6 he is barricading the K-side. Meanwhile both sides would like to exchange their Bishops for the opponent's Knight. The position is closed so the Knights are better.>

Mar-24-19
Premium Chessgames Member
  manselton: 23...a4 <A commital move which only temporarily keeps the White Knight out of c5. If White can force ...b7-b5 then c6 becomes very weak and all of Black's Q-side pawns will be on poor squares.>


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Mar-24-19
Premium Chessgames Member
  manselton: 34...Nf5 <Offering the Knight for Bishop exchange rather than play ...b5.>


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<But White's next forces Black to play just that.>

Mar-24-19
Premium Chessgames Member
  manselton: 39.Ne1


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<In Bronstein's famous tournament book he suggests 19.e6! as winning but White is in no hurry.> That is a virtue in an ending which Shereshevsky rubs in repeatedly. <When the Knight gets to c5 he has a strategic win anyhow.>

Mar-24-19
Premium Chessgames Member
  manselton: 40.Nd3?


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<This automatic, natural move allows Black to save the game in amazing fashion.> Instead 40.Rc5 wins Bronstein, e.g. 40...b4 41.Ra5


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Mar-24-19
Premium Chessgames Member
  manselton: 40...b4! 41.Rc5 Bf5 42.Nf2 b3!


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<And now 43.Rxc6? loses to 43...a3!!>


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So White's 43rd was forced.

Mar-24-19
Premium Chessgames Member
  manselton: 44.Kf3


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<The last attempt to win was 44.Nd1 But if 44.Rxc6 Rhc8 45.Rxc8 Rxc8 And d4 is indefensible as 46.Kf3 loses the exchange to 46...Be4+>


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