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Efim Geller vs Viktor Korchnoi
Korchnoi - Geller Candidates Quarterfinal (1971), Moscow URS, rd 4, May-19
Sicilian Defense: Dragon Variation. Yugoslav Attack (B77)  ·  1-0
ANALYSIS [x]

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Kibitzer's Corner
Mar-21-07
Premium Chessgames Member
  tpstar: Fritz 7 Deep Position Analysis [20MB]:

1) 20. Rh2 Re8

a) 21. Rdh1 Rh8 22. c4 Qa5 23. Kb1 Qb6+ = [-0.19/13]

b) 21. Rdh1 Qa5 22. Nb3 Qe5 23. Qxa7 Qxc3 = [-0.16/13]

c) 21. g5 Nh5 22. Nb3 Qb6 23. Qd2 Qa6 [-0.47/13]

d) 21. Nb3 Qb6 22. Qd3 Qb5 23. Qe3 Bc6 [-0.41/13]

2) 20. Rh2 Kg8

a) 21. Nf5 Bxf5 22. gxf5 Qd7 23. fg fg [-0.28/14]

b) 21. Nb3 Bxg4 22. fxg4 Nxg4 23. Qe2 Nxh2 [-0.38/14]

c) 21. Rdh1 e5 22. Nf5 Bxf5 23. gxf5 Qd7 = [0.03/14]

Aug-29-08
Premium Chessgames Member
  GrahamClayton: Apparently Korchnoi took only 10 minutes to play his first 19 moves, and then spent 94 minutes on his 20th move.
Sep-02-08
Premium Chessgames Member
  GrahamClayton: Source: Andy Soltis "Chess Lists", 2nd edition, McFarland Publishing, 2002
Aug-15-11  Rama: 37. Rxc4 Nxc4 (... Rb1+, 38. Ka2) 38. Kxc4 ..., looks winning to me. What am I missing?
Aug-15-11
Premium Chessgames Member
  beatgiant: <Rama>
How about 37. Rxc4 Rb1+ 38. Ka2 <Rb2+> 39. Kxb2 Nxc4+ with a fork, recovering the material?
Aug-16-11  Rama: I think I got confused, placing the white K on b3 in my mind. Yes, The Knight's recapture on c4 is a check,
Dec-06-15
Premium Chessgames Member
  thegoodanarchist: Paul Keres called Game 4 "one of the most interesting ... of the match."
Dec-29-18  woldsmandriffield: An amazing tussle. At the end, Korchnoi might have tried 42..gxh5 and forced Geller to find 43 Nf5+ Kh7 44 f4! (44 Rxa4 is only a draw).
Dec-29-18  cunctatorg: At least at this game of this damned variation Viktor was able to put a stubborn and subtle fight; not like at the other game of the very same variation at the final of the 1974 Candidates matches against Karpov ... which was a pure massacre...

Damned Dragon variation and more damned Pirc defense... Preposterous choice of openings by Viktor sometimes...

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