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Viktor Korchnoi vs Felix Csajka
Simul (1988), Zuerich SUI
Semi-Slav Defense: Meran Variation. Rellstab Attack (D49)  ·  1-0



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Kibitzer's Corner
Premium Chessgames Member
  Sneaky: Korchnoi's attack in this game has left a very strong impression on me.
Feb-07-03  drukenknight: what about 14...Bb7?
Premium Chessgames Member
  Bears092: Bxb5, followed by f3 or Nf3
Feb-08-03  ughaibu: Yes, nice game.
Premium Chessgames Member
  Sneaky: Note that 20...Nh5? is met with 21.Qxh5!
Feb-12-03  drukenknight: Sneaky, I dunno: what about 21...Qxg2 hoping to win a R for a B?

Bears: 15 Nf3 looks weak, for one thing leaving the spot e5 is certainly a good thing for white. What if 15...Bd6 followd by Ng5 overwhelming the h2 spot?

15. f3 really weakens the K position. If that is the best that white can do then I think Bb7 maybe sound.

Premium Chessgames Member
  Sneaky: <what about 21...Qxg2> A cute idea, but after playing a few lines with that move I can't find where Black doesn't end up down massive material. The problem is that in addition to all of Black's other woes, the bishop on e7 get captured with check.
Feb-12-03  drukenknight: hmm I haven't studied it yet, what does the line look like?
Oct-30-04  Apocalypse79: I think black is inevitable to checkmate.. No evitable move to black. Any idea ??
Oct-30-04  clocked: 22.Nxf7!
Oct-31-04  Apocalypse79: <clocked> Sorry but, I mean occurrence after 25.Bh6+ It's not an answer..
Oct-31-04  clocked: that is fine, I wasn't talking to you... And yes, it is inevitable
Oct-31-04  Spassky69: Just to let you know <Apocalypse79> clocked deleted an angry post against you then deleted it then posted this one instead. You can't hide from me <clocked>!

PS Why and how did we start using the little <>'s?!?! I mean I thought there was some significance to it so I started to do it. It just seems well retarded now. So why do we do it?! Anyone!?

Oct-31-04  Minor Piece Activity: <Spassky69> I saw clocked's previous post. It was the exact same except that he accidentally inserted <clocked> before "that is fine." You can't hide from me <spassky69>! LOL =)
Oct-31-04  Spassky69: <MPA> Well hiding from people runs in the family. My dad hid from the cops until July 2 (ironically my mom's anniversary) and he was wanted since October!
Oct-31-04  Minor Piece Activity: Lol btw I read your profile. Is it a joke?! =) I mean, you think Botvinnik is one of the greatest players ever because he was the best "at winning world championships after he lost them and waiting til the opponent gets sick, loses energy, to take advantage and get guaranteed rematches while the Soviets threaten non-pure Russians like Tal, Bronstein, etc. to lose or else."?! That doesn't sound like a great player to me... Lol.
Aug-13-06  Hesam7: I think Black has a big advantage after 18... h6 19. Bh4 Bd8:

click for larger view

Black wants to exchange minor pieces with Nd7. IMO after this White does not have any compensation for the pawn. The following lines are my engine's recommendation at depth 15:

20. Rc1 Nd7 21. Bxd8 Rfxd8 22. Nxd7 Qxd7 23. Rg3 Rdc8 24. Rf1 Rc5 25. b4 Rc3 26. Qe5 f6 27. Bxb5 Qd5 28. Qxd5 Bxd5 (eval: -0.81)

20. Be1 Bc7 21. Bb4 Rfc8 22. Rf2 Bd6 23. Bxd6 Qxd6 24. Bxb5 Ne4 25. Rff1 f6 26. Nd7 Rc3 27. Rad1 Rac8 (eval: -0.99)

Aug-14-06  Hesam7: Even 22... Bd5 could have saved the game for Black. For example 23. hxg6 hxg6 and now:

click for larger view

24. Nxf7 Kxf7 25. Bxg6 Kg7 26. Bd3 Kf7 27. Bg6 =

24. Bh6+ 25. Nxf7 Kg7 26. Nxd8 Bxd8 [26... Rxd8!?] 27. Rxg6 Kf7 28. f5 exf5 29. Qe5 Kxg6 30. Qxf5 Kg7 31. Qg6 Kf8 32. Qh6 Kg8 33. Qg6 Kf8 =

Premium Chessgames Member
  Sneaky: I agree that 18...h6 looks pretty good. I remember long ago studying "move 18 options" in this variation, I think I concluded that 18.b3 is not quite right.

I have a hunch your second line is a litle half baked. Did you consider that after 22...Bd5 23. hxg6 hxg6 24.Bxf6+ Bxf6 White can sacrifice on g6 with either knight or bishop? I'm not saying those are situations but I wouldn't trust a computer to evaluate it and I wouldn't trust a human who has spent less than a day on it. It's a very complex situation!

The semi-slav is completely suitable for correspondence play as the richness of these variations illustrate.

Aug-17-06  Hesam7: <Sneaky: I agree that 18...h6 looks pretty good. I remember long ago studying "move 18 options" in this variation, I think I concluded that 18.b3 is not quite right.>

If you look at the games played after this White has played 18. Rg3 which prevents h6 directly and puts the rook in a more active position.

<Sneaky: I have a hunch your second line is a litle half baked. Did you consider that after 22...Bd5 23. hxg6 hxg6 24.Bxf6+ Bxf6 White can sacrifice on g6 with either knight or bishop? I'm not saying those are situations>

Well actually you should! Both 22... Bd5 23. hxg6 hxg6 24. Nxg6 and 22...Bd5 23. hxg6 hxg6 24. Bxf6+ Bxf6 25. Nxg6 win for White. Also note that in both cases sacrificing the bishop is not good because of ... d3+.

Aug-17-06  syracrophy: After 25.Bh6+!:

<A)>25...Kh7 26.Bxg6+ Kg8 27.Bh7+! Kxf7 <27...Kxh7 28.Rg7++> 28.Qxe6+ Ke8 29.Bg6++

<B)>25...Kxf7 26.Qxe6+ Ke8 27.Qxe7++

<C)>25...Kg8 26.Rxg6+ Kxf7 <26...Kh7 27.Rg7++> 27.Qxe6+ Ke8 28.Qxe7++

Aug-26-10  rapidcitychess: That is a very well conducted attack.

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