Viktor Korchnoi vs Robert James Fischer - Herceg Novi blitz 1970.04.08

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Viktor Korchnoi vs Robert James Fischer
Herceg Novi blitz Herceg Novi YUG round 10.1 1970.04.08
King’s Indian Defense: Orthodox Variation, Aronin-Taimanov Defense 0-1

[Event "Herceg Novi blitz"]
[Site "Herceg Novi YUG"]
[Date "1970.04.08"]
[EventDate "?"]
[Round "10.1"]
[Result "0-1"]
[White "Viktor Korchnoi"]
[Black "Robert James Fischer"]
[ECO "E97"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "62"]

1. d4 {Notes by Bobby Fischer} Nf6 2. c4 g6 3. Nc3 Bg7 4. e4
d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nc6 8. d5 Ne7 9. Nd2 {This move
is apparently considered best by the Russians. In the "Turner
Mira" 1970, Petrosian played 9 b4 Nh5 10 Nd2!? Nf4 11 a4, but
without great success against Gligoric.} c5 {I think this is a
logical move. Black takes a tempo from his King side play to
slow down White's Queen side initiative which usually comes
quite quickly with b4, c5, etc.} 10. a3 Ne8 11. b4 b6 12. Rb1
f5 {! Having made all the necessary precautions on the Queen's
side Black is now ready to attack on the King's flank.} 13. f3
{Maybe better is 13 Nb3 as in the game Gligoric-Tringov,
Belgrade, 1969.} f4 14. a4 g5 15. a5 Rf6 {!} 16. bxc5 {? This
is, as Korchnoi pointed out afterwards, a "terrible mistake"
because now it is impossible for White to get any initiative
on the Queen side.} bxc5 17. Nb3 Rg6 18. Bd2 Nf6 {or ...h5!}
19. Kh1 g4 {Maybe more exact was 19...h5} 20. fxg4 {Forced
because of the threat of 20...g3 and then white cannot play 21
h3 because of 21...Bxh3 etc.} Nxg4 21. Rf3 {? 21 Bf3! was
better, with a more tenacious defence..} Rh6 22. h3 Ng6
23. Kg1 Nf6 24. Be1 Nh8 {!! This attacking manouver is
decisive.} 25. Rd3 Nf7 26. Bf3 {h4!? held out a little
longer.} Ng5 27. Qe2 Rg6 28. Kf1 {Or 28 Kh2 Qd7 threatens
29...Nxh3 etc.} Nxh3 29. gxh3 Bxh3+ 30. Kf2 {At this moment my
hand hovered over White's Pawn on e4, but at the last second I
realized that 30...Nxe4 is answered by 31 Qxe4 and White
wins.} Ng4+ 31. Bxg4 Bxg4 {And here Korchnoi thought for about
a minute and a half and not seeing a defence to the double
threat of 31...Bxe2 and 32...Qh4+ resigned.} 0-1

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Updated: 2 February, 2022
Created: 2 February, 2022