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Viktor Korchnoi vs Tigran Vartanovich Petrosian
Petrosian - Korchnoi Candidates Semifinal (1971), Moscow URS, rd 10, Jul-26
Catalan Opening: Open Defense (E02)  ·  1/2-1/2
ANALYSIS [x]

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Kibitzer's Corner
Mar-01-09  WhiteRook48: Korchnoi offered Petrosian a win or a draw.
Jul-27-13
Premium Chessgames Member
  offramp: I would have taken the win.
Jul-27-13
Premium Chessgames Member
  kbob: It was the last game of the match, so Tigran settled into the very Petrosianistic final score +1=9
Jul-27-13  RookFile: And Petrosian did the right thing. The only point is to win the match.
Aug-08-14  zanzibar: Interesting point in the game, where Korchnoi underestimated the weakness of his 2nd rank, and the nice queen maneuver a6-e2-h5 (spectral refection).

(After 29.Qc3? Qe2!)


click for larger view

And the bishop is pinned against d2:

if 30.Bxe5? Rd2! and 31.Qxd2 is forced. And if 30.Rc2?? Nf3+ 31.Nxf3 Qxf3 32.e4 Qxe4 and the threat of mate forces 33.f3 and White loses the bishop.

Aug-18-16  Howard: New in Chess alluded to the final position a few years back, saying that Korchnoi's position was "ripe for resignation".

Not only that, the Informant states that Black had a decisive advantage at the end.

Aug-18-16
Premium Chessgames Member
  plang: Not unusual in a match - player who is behind takes risks that backfire - in that situation a draw is the same as a loss as the match is over.
Aug-18-16
Premium Chessgames Member
  perfidious: As was the case in the other semifinal; there were two games in which Larsen could readily have forced draws had he so desired, but given his pragmatism, he knew that led nowhere but the grave.
Aug-23-16  Howard: Yes, the 5th and 6th games were ones in which the draw was Larsen's for the asking.

He probably preferred to go down fighting rather than quietly finish out with two dull draws.

Aug-23-16  ewan14: Any concrete evidence yet V.K.
threw the match ?

( per Karpov. )

Aug-23-16
Premium Chessgames Member
  maxi: White's position sucks big time.
Aug-24-16  Howard: Fischer, as I recall, suspected that the match was rigged. Korchnoi made a brief reference to that allegation in a January, 1978 interview with Chess Life and Review, but I don't recall what he said.
Aug-24-16  Lt.Surena: Maybe Bobby thought it was all like the 1970 Interzonal after all. Benko was paid off under the table by the gangsters at USCF so Bobby could take Benko's place. Five other players who were eligible ahead of Bobby were also told to take a hike by the USCF. This scam was done all in the open with the cooperation of the FIDE's main goon aka. Euwe. * Kirsan couldn't hold a candle to Euwe.
Aug-24-16  Howard: A rather one-sided account, in my view.
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