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Vassily Ivanchuk vs Rustam Kasimdzhanov
4th FIDE Grand Prix (2009), Nalchik RUS, rd 5, Apr-19
Queen's Gambit Declined: Charousek (Petrosian) Variation (D31)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
Apr-19-09
Premium Chessgames Member
  luzhin: A startlingly abrupt conclusion: after 26.Qd3(or Qa4)Rxc2 27.Qxc2 Qxf1+! 28.Rxf1 Rxf1+ 29.Kxf1 Nxe3+ wins. It looks like 22.Bf1 was the real blunder, allowing the tactics with d4 to work: probably Ivanchuk had to play 22.f3
Apr-19-09
Premium Chessgames Member
  luzhin: For example, if Ivanchuk had played 23.exd4 then Nxd4! 24.Qd1 Nef3+! 25.gxf3 Nxf3+ 26.Kh1 Qf4 is curtains.
Apr-19-09  ex0duz: Did Ivanchuk lose on time? Or if his flag didn't fall, was he in horrible time trouble and that's why he made the horrible blunder 24.Rdc2 instead of the Rybka recommendation 24.f3?

Of course, after 24.f3, white was still losing, but i think it would of held longer than the text move and he could of made it to move 40 and hope for Kasim to let him back in the game..

Congrats to Kasim for such a devastating win vs Chucky. =)

Apr-19-09  Ulhumbrus: 15 Nxe6 may be premature if White cannot follow it by the pawn advance e3-e4. This suggests preparing the capture Nxe6 by 15 Rad1
Apr-19-09  ajile: When you are White and your queen ends up on a2 you know something is wrong.
Apr-19-09
Premium Chessgames Member
  kamalakanta: Maybe 15.Rd1 is a better alternative to 15.Nxe6?
Apr-19-09  chessmani: Why not 8.Qxb7? It looks quite strong.
Apr-19-09  Udit Narayan: <chessmani> What will white do after 8...Nb4
Apr-20-09  zealouspawn: I presume white didn't play 8 Qxb7 because of 8.. Nb4, where its threat is the c2 fork
Apr-20-09
Premium Chessgames Member
  whiteshark: Yes, <15.Rd1> seems to be the best move.


click for larger view

Apr-20-09
Premium Chessgames Member
  whiteshark: ... but the real prize question is, why didn't Ivanchuk play the forking pawn push <12.b4>?


click for larger view

Apr-20-09  ALwoodpusher: <whiteshark 12.b4!?>

Black seems to get the initiative after 12...d4!, opening lines to the white king.

Apr-20-09  Chesstalesfan: This could be a very sharp continuation indeed.
For instance: 12b4 d4 13bxc5 dxc3 14Be2 Ne4 15.0-0-0 and so on. Unforseen, unclear
Apr-20-09
Premium Chessgames Member
  luzhin: After 12.b4 Black has a much simpler reply: 12...Bb6!. Then after the greedy 13.bxa5? (Be5 would be much wiser) the game could continue... Bxa5 14.Rc1 Rc8 15.Be5 Ne4 16.Qb2 f6 17.Bd4 Rxc3 18.Bxc3 Nxc3 19.Rxc3 Qc7 20.Kd2 Rc8 winning.
Apr-20-09  Chesstalesfan: luzhin, 21Rhc1? how is going the black continue?
Apr-20-09
Premium Chessgames Member
  Eyal: <After 12.b4 Black has a much simpler reply: 12...Bb6!. Then after the greedy 13.bxa5? (Be5 would be much wiser) the game could continue... Bxa5 14.Rc1 Rc8 15.Be5 Ne4 16.Qb2 f6 17.Bd4 Rxc3 18.Bxc3 Nxc3 19.Rxc3 Qc7 20.Kd2 Rc8 winning.>

<21Rhc1? how is going the black continue?>

No such move - the white bishop is still on f1. White may improve a bit in this line, however, with 18.Rxc3 Qc7 19.Be2 Nxc3 20.O-O, so even stronger for Black is 16...Re8! aiming for 17...Rxe5 followed by 18...Bxc3+, and if 17.Bd4 then 17...Nxc3 18.Rxc3 Rxc3 19.Bxc3 Qf6(!) 20.Kd2 (20.Nd4 Qxd4 - another point of Re8) 20...Rc8.

Apr-20-09
Premium Chessgames Member
  luzhin: I'm a bit confused by your variation, Eyal: after 19.Bxc3 Qf6 White would simply capture the Q with 20.Bxf6. However, after 18.Rxc3 in your line, 18...Qc7! certainly does the trick.
Apr-20-09  chessmani: <Udit Narayan> After 8...Nb4 white can play Rc1.

Check Rybka, it evaluates it around ~0.70. If I'm missing I don't know what it is :S

Apr-20-09
Premium Chessgames Member
  Eyal: <luzhin> Well, in the line 12.b4 Bb6 13.bxa5? Bxa5 14.Rc1 Rc8 15.Be5 Ne4 16.Qb2 Re8 17.Bd4 Nxc3 18.Rxc3, 18...Qc7 19.Kd2 Re4! (aiming for Rxd4+ followed by Bxc3) or 18...Rxc3 19.Bxc3 Qf6 are equally good. The bishop on c3 is pinned, so White can't play 20.Bxf6:


click for larger view

It's doubly pinned, actually, which makes this line a bit more spectacular...

Apr-20-09
Premium Chessgames Member
  luzhin: Yes, that is spectacular, Eyal. I guess White's best in the above position would be to play 20.Kd2 Rc8 21.Bc4 and after Rxc4 22.Rc1 but even if White unravels, Black --a pawn up and with raking Bishops-- should be winning.
Apr-20-09
Premium Chessgames Member
  Eyal: <20.Kd2 Rc8 21.Bc4 and after Rxc4 22.Rc1> The simplest way for Black to win here might be 22...Rxc3 23.Rxc3 Be4 - with the idea of continuing Bxf3, d4-exd4-Qxd4 followed by by an exchange of the remaining pieces and a trivial win in the resulting pawn endgame with a pawn up; I don't think White can do anything to prevent that.
Apr-21-09  DCP23: Peter Svidler on this game:

<Vassily Mikhailovich played even worse than me today, which is hard to believe>

Apr-22-09  M.D. Wilson: Ivanchuk really needs to take a break from chess.
Apr-22-09  beenthere240: 16. Be2 ended up cutting off the protection of the f2 pawn, but it's amazing to see white get in such trouble so fast in a QGD.
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