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Viswanathan Anand vs Peter Leko
FIDE World Championship Tournament (2005), San Luis ARG, rd 5, Oct-03
Sicilian Defense: Lasker-Pelikan. Sveshnikov Variation Chelyabinsk Variation (B33)  ·  1/2-1/2

ANALYSIS [x]

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Viswanathan Anand vs Peter Leko (2005)
Photograph copyright © 2005 World Chess Championship Press.  Used with permission.


Kibitzer's Corner
Oct-03-05  Ulhumbrus: Instead of 24 Ra6, 24 Na6 may be more exact, getting ready for R-c2-c6 while discouraging ...Nc5.
Oct-03-05  Ulhumbrus: 21 exd5 blocks the d5 square, while 21 Qxd5 keeps it open even if after 21 Qxd5 the queen has to move again.
Oct-03-05  Flight Arrival UK: Naw, Michael is still showing the same signs of a haggard old woman in the background.

I love Michael but Viswanathan and Peter are showing far more engrosed concentration.

Michael is only pretending to be.

Don't get me wrong, i will suck Michael's right thumb but mentally i believe he is blocking himself.

I know coz i have been there.

Oct-03-05  csmath: 24. Ra6 was inferior to 24. Nc6. This might have been a winning move. It quickly became obvious that black will grab a-file and get a relief needed. Exchanging rooks on a-file was much better for white.

29. ... Qd4

was a great tactical gamble by Leko, truly impressive move. It does not deserve the exclamation mark but it is something only a great player would play.

Anand has chosen "safe" 30. Rc4 and nothing came out of that though he was grinding Leko for a while in a drawn ending.

More risky but also more promising move:

30. b7! ... Nxf2
31. Qb6 ... Qxb6
32. Rxb6 ... Be3!
33. b8Q ... Ne4!
34. Kh1 ... Rxb8
35. Rxb8 ... Kg7
36. g4! ... Nc3

and white is better though it is uncertain that it is enough to win and position is dynamic enough that black also has his chances.

Oct-03-05  Ezzy: Some analysts have mentioed the fact that 20..Bxd5?! is not in the spirit of a dynamic opening like the sveshnikov!

Anand tortured Leko for most of this game. Leko does seem to play these dynamic openings rather tamely, and he seems to be suffering because of this.

Oct-03-05  John Abraham: This is a very good photo, capturing the intense emotion and state of thought of the players as they hover over the chessboard.
Oct-03-05
Premium Chessgames Member
  tpstar: Why is Leko's chair different? Seriously, does he bring his own from home? Fascinating. He also has that goblet of water all the time. At least, it looks like water. =)

I thought this was a good fight. Too bad Anand couldn't close it out.

Oct-03-05  John Abraham: Seems like Leko has a chocolate bar (Cadbury?) next to him as well.
Oct-03-05  csmath: <<Some analysts have mentioed the fact that 20..Bxd5?! is not in the spirit of a dynamic opening like the sveshnikov!>>

Yes. But I don't think Leko expected exd5. That created problems for him that he was able to overcome because of timid Anand's play as well.

This is not a great game but rather a game of two opponents trying not to lose. This is going to cost Anand more because I think Leko's San Luis excursion is not very believable at this point.

Oct-03-05  VishyFan: really bad that Anand couldn't quite convert his slight advantage into a full point...., it's going to cost him dearly, as i have said, one got to materialize all those white games..... :(
Oct-04-05  Uranium: Anand its a wonderfull player and he has shown here in San Luis he is playing at 100 percent, so he will recover and its still a favorite with Topalov.
Oct-04-05  csmath: <<really bad that Anand couldn't quite convert his slight advantage into a full point....,>>

Actually after 23 moves Anand had a significant advantage, very close to winning. He has simply chosen the wrong manouvre with Ra6-Rc6. If he had played 24. Nc6, I went through quite deep analysis during the game and after, he would have a huge advantage and Leko would have serious problems to survive.

Leko played the whole opening poorly, this is uncharacteristic of Leko since ordinarily he very rarely loses theoretical discussions in opening. He did some great defence afterwards but this was Anand's loss of a half a point. Leko was quite content to get it.

Anand will have to start winning these kinds of positions no matter what, else the crown will go away to Topalov.

Oct-04-05  VishyFan: thanks <csmath> I did see the line using Fruit.....

Anand has himself to blame for the position he is currently in......, blundered against Kasim and lost out on a winning opportunity against Leko, that should count as 1 full point, and he should have been at 4/5, just .5 of a point behind Topa.....

Oct-04-05
Premium Chessgames Member
  Mateo: 28. b6 set a nice tactical trap. 28... Nd2? 29. Qb5! Qb5 (29... Nf1 30. Qa5 Ra5 31. Bf1 Ra1 32. b7 Rb1 33. Rc8 Rb7 34. Rf8 ) 30. Bb5 Ra5 (30... Nf1 31. Ba4 Nd2 32. b7 ) 31. Be2! Nf1 32. Bf1 Ra1 33. b7 .
Oct-04-05  VishyFan: <Mateo> Nice line, but sad thing is that Leko didn't go for it....
Oct-05-05  Boomie: I can't find a win after 24. ♘c6. Maybe someone can show the winning line.

24. ♘c6 ♕c7 25. ♕b1

(25. ♕a1 ♖xa2 26. ♕xa2 ♘c5 27. ♖a1 ♔g7 28. ♕a7 ♕xa7 29. ♖xa7 ♗d8= (0.25/16))

25...f5 26. b6 ♕f7 27. ♕a1 ♖xa2 28. ♕xa2 f4 29. f3 ♘c5 30. ♗c4

(30...♕b7 31. ♕a7 ♖a8 32. ♕xb7 ♘xb7 (1.20/15))

30. ♖b1 ♗f6 31. ♗c4 ♕b7 32. ♕a7 ♖a8 33. ♕xb7 ♘xb7 (1.27/16)

Oct-05-05  Boomie: I just realized that the 24. ♘c6 ♕c7 25. ♕b1 line transposes into the 25. ♕a1 line after 25...♖xa2. This means it is less likely that white has a win here.
Oct-05-05  Boomie: <Ulhumbrus> idea of 24. ♘a6 is interesting and about as good as ♘c6.

24. ♘a6 ♕b6 25. ♖c2 ♘c5 26. ♘xc5 dxc5 27. ♕d3 ♕d6 (0.56/13)

Oct-05-05  VishyFan: <Boomie> Try 27. ♖d1 instead, u'll see a white win.......
Oct-05-05  Boomie: <VishyFan> The best line I found for black is:

24. ♘c6 ♕c7 25. ♕b1 (or ♕a1) ♖xa2 26. ♕xa2 ♘c5 27. ♖a1 ♔g7 28. ♕a7 ♕xa7 29. ♖xa7 ♗d8= (0.25/16)

Oct-05-05  Hesam7: Here is analysis by Fruit after 23 ... Nb7:

24. Nc6 Qd7 25. Qa1 Rxa2 26. Qxa2 Nc5 27. Qa5 Kg7 28. b6 Qb7 29. Ra1 Bd8 30. Rb1 Bg5 31. Qb4 Ra8 32. Nxe5 Ra4 33. Qc3 Bf6 34. f4 dxe5 35. Qxc5 exf4 (eval: +0.43)

Depth: 21
3583M nodes
691K nodes/sec

Oct-05-05  tpstardefender: <Hesam7> If you don't mind, can you please share the analysis after 30.Qd3? Thanks in advance!
Oct-05-05  Hesam7: <tpstardefender: <Hesam7> If you don't mind, can you please share the analysis after 30.Qd3? Thanks in advance!>

Sure. No problem my friend! Here is Fruit analysis after 30. Qd3:

30... Qb2 31. g3 Nd2 32. Qb5 Qxb5 33. Bxb5 Ra5 34. Be2 Nxf1 35. Bxf1 Kg7 36. b7 Ra2 37. b8=Q Rxb8 38. Nxb8 d5 39. Rd6 Rd2 40. Nc6 e4 41. Rd7 Bf6 (eval: +0.54)

Depth: 18
1805M nodes
678K nodes/sec

Oct-05-05  tpstardefender: <Hesam7> I appreciate your kindness and time, my friend:)
Apr-16-25
Premium Chessgames Member
  plang: 18 b4 was a relatively new idea that Leko responded badly to with 18..axb?!. Played in the 5th round; in the next round Leko played the stronger 18..Bd7 against Kasimdzhanov. The passive 20..Ne7 had been played in Korte-Siegmund Arco 1998 (game not included in this database); 20..Bxd5 was new but does not solve Black's problems. Leko was planning on responding to 24 Nc6 with 24..Rxa2! 25 Nxd8..Bxd8 when after 27 Qd2..Bb6 28 Qg5..Kg7 White will have difficulty making progress. As mentioned in previous posts 30 Rc4? squandered much of White's advantage; 30 b7 and 30 Qd3! would have maintained White's edge. Anand would have kept slight winning chances with 34 Bb3; instead, after 34 Bxd5?! the game was drawn without incident.

While it is true that Anand did not make the most of his chances it is also true that Leko defended admirably.

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