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Svetozar Gligoric vs Tigran Vartanovich Petrosian
Zurich Candidates (1953), Zurich SUI, rd 4, Sep-05
Benoni Defense: Knight's Tour Variation (A61)  ·  1/2-1/2
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Jul-13-05  aw1988: Highly amusing note on 7. Nd2:

(after explaining both sides have violated classical principles) If one side were to play concretely, however, while the other side contented himself with following the rules, the winner would not be difficult to predict...

Let's take an extreme case: 1. f2-f3? e7-e6 2. g2-g4? What should Black do? Moving the queen so early in the game is not generally recommended, but in this instance, taking White's errors into consideration, 2.. Qd8-h4 does not look bad.

Aug-05-12
Premium Chessgames Member
  Peligroso Patzer: The final position is interesting. After <41. h5> the position was:


click for larger view

Petrosian sealed <41. ... gxh5>, and Gligoric agreed to a draw as soon as the move was revealed.

Bronstein (in <Zurich International Chess Tournament 1953>, by BRONSTEIN, David, tr. from the Second Russian Edition by Jim Marfia, Dover Publications, Inc. (c)1979, at page 42) wrote: “After home analysis, both players concluded that the draw was within Black’s capabilities, so Gligoric only asked to see what move Black had sealed. Petrosian, of course, was not about to allow a pawn on h6.”

Najdorf (in <Zurich 1953: 15 Contenders for the World Chess Championship>, by NAJDORF, Miguel, tr. by KINGSTON, Taylor, Russell Enterprises, Inc. ©2012, at page 80) wrote: “At the moment for adjournment, Petrosian finds the right move, after which a draw was agreed without resuming play. Black was obliged to play <41. … gxh5> because otherwise would come <42. h6>, followed by <43.e4 fxe4 44.Rxe4 Rxe4 45.Bxe4> with winning chances (e.g., <45. ... Rh3 46. Bf3<!>).>

To illustrate White’s threats, assuming the position in the above diagram (after <41. h5>) but with <White to Move>, and continuing with Najdorf’s analysis (i.e., after <42.h6 Kf8 43.e4 fxe4 44.Rxe4 Rxe4 45.Bxe4>) possible further play could go: <45. ... Rd1 46.Ra2 Kf7> (No better is: <46...Rc1 47.f5 gxf5 48.Bxf5 Kg8 49.Be6+ Kh8 50.Kg2 Be8 51.Rf2><+–>) <47.Kg2 Re1 48.Bf3 Re8 49.Bg4 Kg8 50.Be6+ Kh8>

(Here, no better would be: <50...Kf8 51.Rf2> with the winning threat: <52. f5>.)

... Continuing the analysis from the position after <50. … Kh8>:


click for larger view

<51.Rf2 Ba4 52.f5 gxf5 53.Ra2 Bb5 54.Kf3 Re7 55.Bxf5 Rf7 56.Kg4 Rf8 57.Re2 Rf7 58.Re4> (zugzwang) (But note that White must avoid playing the Rook to e6 immediately: <58.Re6<?> Bd7! 59.Rf6 Rxf6!> (Not, however, <59...Bxf5+? 60.Kxf5 Kg8 61.Ke6 Rxf6+ 62.gxf6 Kf8 63.Kxd6 Kf7 64.Kc7><+–>) <60.gxf6 Be8 61.Be6 a5><=>) <58...Ra7 59.Re6>< >.

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