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Robert Byrne vs Viktor Korchnoi
"Tale of the Dragon" (game of the day Oct-07-2018)
Sousse Interzonal (1967), Sousse TUN, rd 7, Oct-27
Sicilian Defense: Dragon Variation. Yugoslav Attack Main Line (B77)  ·  0-1



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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Jun-17-03  SicilianDragon: Gotta love it
Jun-17-03  caseyclyde: Instead of 27.Rxh7 White was better off with Rc-d1, threatening to trade queens. If the knight goes back to e8 holding the pawn, white either rook to Re1. Among other things, he can give back the exchange if black puts the bishop on e6.
May-23-07  Resignation Trap: This game, from round seven, was played October 27, instead of the scheduled October 24, as Byrne had a stomach complaint.

After 27.Rxh7?? his ailment may have returned (simply moving the Rook on c1 anywhere would have maintained a winning position)!

Aug-24-11  joshuap: Black does a good job of following through on his attack. Ra1+ is a nice finish.
Jun-29-17  sho16: The Dragon's Byrne
Jul-17-17  clement41: This opening demands a great deal of precision. E.G if 11...Rac8?! instead of 11...Rfc8, then white has 12 Nxc6 takes back 13 Nd5! and: A 13... Qxd2 14 Nxe7+ zwichenchach Kh8 15 Rxd2 B 13...Qd8 14 Nxf6+ takes back 15 h4 as white won an important tempo in this heavily tempo-based position+ managed to remove the defender of h5 and h7 Whereas the text enables 14...Kf8 in the A line above
Premium Chessgames Member
  al wazir: If 28. Rch1, then 28...Ra1+ still works: 29. Nxa1 Qa2+ 30. Kc1 Qxa1#. But not 28...Bxb3 29. cxb3, creating a breathing hole for the ♔.

White should have played 28. c4: 28...Bxc4 29. Rxc4 Qxc4 30. Kxa2 Qa4+ 31. Kb1 Qxb3.

Oct-07-18  MGHANIM: what about 28.c4 to close the diagonal in front of the Bishop?
Premium Chessgames Member
  thegoodanarchist: Byrne didn't know how to play against the Dragon, it looks like. He took way too long to push the h-pawn. So Black was able to get a splendid position before White opened the h-file.

Most blitz chess players on these days play it better than Byrne did.

Oct-07-18  cunctatorg: This game of Victor the Terrible is great but -being an avid Korchnoi's fan- I feel sorry for him when I do the connection between Victor Korchnoi and this damned variation...
Oct-07-18  TheaN: Korchnoi correctly visioned <24.Nc5? Rxa2!> and White's being questioned the power of Nc5. White doesn't have much else but <25.Nxa6> as Qxd6+? is desperation.

Now Black finishes in style with <25....Rxb2+ 26.Ka1 Rxc2+>, after which:

A) <27.Kb1 Rb2+! 28.Ka1 Rxd2+ 29.Rc3 Bxc3#> B) <27.Qd4 Bxd4+ 28.Kb1 Rb2+ 29.Ka1 Rxg2+ 30.Rc3 Bxc3#> C) <27.Qc3?!> some caution here as the Bishop will end up on the Rook's file. <27....Bxc3+ 28.Kb1 Rxg2+ 29.Rc2 Rxc2 30.Rc1 Rd2+ 31.Rc2 Rxc2 32.Bxg7+ Kxg7 33.Nb4 Rb2+ 34.Kc1 Rb1#>

Premium Chessgames Member
  wtpy: Good anarchist, I have to disagree with you, Byrne has a significant advantage beginning with 16 e5. And Korchnoi's game goes rapidly downhill from there. Instead of 24 f4 I like Rhe1, but Byrne has the game well in hand until he blunders with 27 Rh7. 27 Qc3, Rcd1 or Rce1 would have all easily repulsed black's attack. I suspect Byrne was in time trouble which was perhaps compounded by the stomach issues others have noted.
Premium Chessgames Member
  thegoodanarchist: <wtpy>

Thanks for your perspective on the matter.

Premium Chessgames Member
  thegoodanarchist: <wtpy> seems that earlier commentators agree with you.
Oct-09-18  cormier:

click for larger view

Analysis by Houdini 4: d 23 dpa done

<1. + - (5.21): 27.Rce1> Kg8 28.Qc3 Be6 29.Qc7(T) Ra1+ 30.Nxa1 Qa2+ 31.Kc1 Qxa1+ 32.Kd2 Qa4 33.Qxd6 a6 34.Qb8+ Ne8 35.Qe5 Ng7 36.b3 Qb4+ 37.c3 Qf8 38.Kc2 Bd7 39.Qe7 Qxe7 40.Rxe7 Bc6 41.Re2 Nh5 42.Rf2 Ng3 43.Re1 Ne4 44.Rfe2 Ng3 45.Rd2 Ne4 46.Rd8+ Kg7 47.Re3 Nc5 48.g3 Be4+ 49.Kb2 a5 50.Rd4 Bc6 51.Re2 h5 52.gxh6+ Kxh6 53.Re7

<2. + - (5.21): 27.Qc3> Be6 28.Rce1 Kg8 29.Qc7(T)

Oct-09-18  cormier:

click for larger view

Analysis by Houdini 4: d 20 dpa done

1. + - (3.13): 26...Nh5 27.Rh4 Be6 28.a3 Qb6 29.Rd1 Kg8 30.Qxd6 Qxd6 31.Rxd6 Re4 32.Rd1 Bxb3 33.cxb3 a5 34.Ka2 Kg7 35.Rd5 b6 36.Re5 Rd4 37.Rb5 Rd6 38.f5 Ng3 39.f6+ Kg8 40.Rc4

2. + - (3.37): 26...Qc6 27.Rxh7 Ne6 28.Rh8+ Ke7 29.Re1 Kd7 30.Rh7 Ke8 31.g3 Be4 32.Nc1 Nd4 33.Qc3 d5 34.Qxc6+ bxc6 35.b3 Ra6 36.Rh8+ Ke7 37.Nd3 Nf3 38.Rd1 Ra5 39.Kb2 Ke6 40.Rc8 Kd7 41.Rf8

Oct-09-18  cormier:

click for larger view

Analysis by Houdini 4: d 21 dpa done

1. + / - (1.19): 25...Nh5 26.Bxf6 Nxf6 27.Rcd1 Kg7 28.Qxd6 Qxd6 29.Rxd6 Rxf4 30.Nd4 Be4 31.g3 Rf2 32.Re1 Bg2 33.Nb3 Ne4 34.Rd3 f5 35.Rd7+ Kh6 36.a4 Nxg3 37.Ree7 Kh5 38.Rxh7+ Kg4 39.Nc5 f4 40.Rdg7 Rf1+ 41.Ka2 Bd5+ 42.b3 f3 43.Rxg6+ Kh3 44.Rd7 Bc6 45.Rf7 f2 46.Nxb7

2. + - (1.53): 25...Ne8 26.Rhe1 Rxa2 27.Rxe8+ Kxe8 28.Bxf6 Be6 29.c4 Bf5+ 30.Rc2 Qxc4 31.Qe1+ Qe6 32.Qxe6+ fxe6 33.Kxa2 Bxc2 34.Ka3 Be4 35.g3 Bd5 36.Kb4 Kd7 37.Kc3 e5 38.fxe5 Bxb3 39.Kxb3 Ke6 40.Kc4 dxe5 41.Bg5 Kf5 42.Kd5 Kg4 43.Kxe5 Kxg3 44.b4 Kf3 45.b5 Kg3 46.Kd5 Kf2 47.Bd2 Kf3 48.Bc3

Oct-09-18  cormier: Analysis by Houdini 4
25.a3 Qb6 26.Rcd1 Ra6 27.Ka2 Qc6 28.Bg5 Nh5 29.Bxf6 Nxf6 30.Kb1 Qc4 31.Nd4 Bg4 32.Qd3 d5 33.Qxc4 dxc4 34.Nf3 Bxf3 35.gxf3 c3 36.Rd4 cxb2 37.Kxb2 Re6 38.Rhd1 Kg7 39.f5 gxf5 40.Rd6 Kg6 41.Rg1+ Kh5 42.Rxe6 fxe6 + - (1.46) Depth: 22
Oct-09-18  cormier: Analysis by Houdini 4
24.Rhe1 Bf6 25.Bg5 Bxg5 26.hxg5 Rxa2 27.Rcd1 Ra4 28.Qxd6+ Qxd6 29.Rxd6 Ne6 30.g4 Bxg4 31.fxg4 Rxg4 32.Na5 b6 33.Nc6 Nxg5 34.Rf1 a5 35.Rd8+ Kg7 36.Rd7 Re4 37.Nd8 h5 38.Nxf7 Nxf7 39.Rdxf7+ Kh6 40.R7f6 b5 41.Kc1 Rg4 42.Rb6 b4 43.Ra6 h4 44.Rh1 Kh5 45.Rxa5+ g5 46.Kd2 Rg2+ 47.Kd3 Kg4 + - (3.89) Depth: 22
Oct-09-18  cormier: Analysis by Houdini 4
23...Be6 24.Rhe1 Rc8 25.Bf4 Bxf4 26.Qxf4 Kg8 27.g4 h5 28.Rcd1 Rc6 29.a3 hxg4 30.fxg4 Qc4 31.Qxc4 Rxc4 32.Rd4 Rc7 33.Nd2 Ne8 34.Rf4 Kg7 35.Ne4 Rc8 36.b3 d5 37.Ng5 Nc7 38.Kb2 Re8 39.h5 gxh5 40.gxh5 + - (2.49) Depth: 21
Oct-09-18  cormier: Analysis by Houdini 4
22...Qxc4 23.Nd4 Bd7 24.h5 Kg8 25.hxg6 fxg6 26.b3 Qf7 27.f4 Bxd4 28.Qxd4 Bg4 29.Rd2 Nf5 30.Qd5 Re8 31.Qxf7+ Kxf7 32.Kb2 a6 33.Rd3 Bh5 34.Bg5 h6 35.Bh4 Re2 36.g3 b5 37.Rc3 Nxh4 38.Rxh4 b4 39.Rc7+ Kf6 + - (1.77) Depth: 23
Oct-09-18  cormier: Analysis by Houdini 4
20...Kg8 21.Ne7+ Kh8 22.Nxf5 gxf5 23.f4 Bg7 24.Bxg7+ Nxg7 25.g3 Rg8 26.Nd4 Re8 27.c3 Kg8 28.Rhg1 h5 29.Qc2 d5 30.Nxf5 Qe6 31.Nd4 Qe4 32.Rgf1 Ra4 33.a3 a6 34.Rf2 Ne6 35.Nxe6 Rxe6 36.f5 + - (1.63) Depth: 22
Oct-09-18  cormier:

click for larger view

Analysis by Houdini 4 : d 22 dpa done

1. + / = (0.39): 19...Rac8 20.Bh6+ Ng7 21.Rc1 Be6 22.f4 Bf5 23.Nb4 Qa4 24.fxe5 Qxb4 25.Qxb4 Rxb4 26.exd6 Rbc4 27.Rhf1 Rxc2 28.Rxc2 Bxc2+ 29.Ka1 Bxb3 30.axb3 Rd8 31.Rc1 Kg8 32.Rc7 Ne8 33.Rxb7 Nxd6 34.Rxa7 Nb5 35.Ra4 f6 36.Ra6 Kf7 37.Ka2 Rd6 38.Ra8 Ke6

2. + / = (0.66): 19...Ng7 20.g4 Rac8 21.Bd4 Rxc2 22.Qg5 Qe2 23.Qe7+ Kg8 24.Bxe5 dxe5 25.Ka1 Rxb2 26.Qa3 Rxb3 27.Ne7+ Kh8 28.axb3 Rc7 29.Nf5 Qa6 30.Qxa6 bxa6 31.Nd6 Kg8 32.Nc4 f6 33.g5 Kf7 34.Rd6 Ne8 35.Rxa6 Bb5 36.Ra5 Bxc4 37.bxc4 e4 38.fxe4 Nd6 39.gxf6 Nxe4 40.Kb2 Nd2 41.Ra6 Nxc4+ 42.Kb3

Oct-10-18  cormier: Analysis by Houdini 4: d 22 dpa done

1. + / = (0.61): 16...Ne8 17.h5 Bxe5 18.hxg6 hxg6 19.Bd4 Rxd4 20.Nxd4 Qc4 21.f4 Bxd4 22.Qxd4 Qxd4 23.Rxd4 Kg7 24.Re1 e6 25.b3 Bc6 26.Rd2 b5 27.Kb2 b4 28.Ne4 Bxe4 29.Rxe4 a5 30.Rc4 d5 31.Rc6 a4 32.c4 bxc3+ 33.Kxc3 axb3 34.Kxb3 Rb8+ 35.Kc3

2. + / = (0.61): 16...dxe5 17.Nc5 Qd6 18.Qe2 Rd4 19.Bxd4 exd4 20.Nxd7 Qxd7 21.Qb5 Qd6 22.Qc4 e5 23.Ne4 Qd7 24.Nxf6+ Bxf6 25.h5 Rc8 26.Qb3 g5 27.h6 b5 28.Rhe1 Qc6 29.Qd3 b4 30.Qe4 Qc5 31.g4 a5 32.Rd2

Oct-10-18  cormier: Analysis by Houdini 4: d 22 dpa

1. + / = (0.33): 12...Rab8 13.Rhe1 Ne5 14.f4 Nc4 15.Bxc4 Rxc4 16.Nb3 Qc7 17.Bxa7 Ra8 18.e5 Rxc3 19.Qxc3 Qxc3 20.bxc3 Rxa7 21.exf6 Bxf6 22.Kb2 Kg7 23.Rd5 Bc6 24.Rd2 Ra8 25.g3 Ra6 26.Rd3 Bd7 27.Rd5 e6 28.Rd3 e5 29.Rd5

2. + / = (0.36): 12...Ne5 13.h4 Nc4 14.Bxc4 Rxc4 15.Nb3 Qa6 16.e5 Ne8 17.h5 Rac8 18.hxg6 hxg6 19.g4 Bxe5 20.Bd4 Rxd4 21.Nxd4 Qc4 22.Qe3 Nf6 23.Rd3 Nd5 24.Nxd5 Qxd5 25.c3 Bf6 26.Rdd1 Qc4 27.Qe4 d5 28.Qe2 e5 29.Qxc4 Rxc4 30.Ne2 d4 31.cxd4 exd4

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