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Veselin Topalov vs Peter Svidler
World Chess Championship Candidates (2014), Khanty-Mansiysk RUS, rd 12, Mar-27
Sicilian Defense: Paulsen. Bastrikov Variation (B49)  ·  1-0
ANALYSIS [x]

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Kibitzer's Corner
Mar-27-14
Premium Chessgames Member
  beenthere240: I'm assuming the "clock fell in a hopeless situation".
Mar-27-14  paavoh: Seems that Svidler is channeling Ivanchuk in this tournament. I was expecting a more solid performance from him with a slight plus and no losses. Boy, was I wrong.
Mar-27-14  csmath: 12. f3
[new move it seems.]

13. ...Nd7?!
[unforced move. It seems that ...Be7 would simply be better with continuing development.]

20. Rfd1
[Now it is clear that 13th move of black was a waste of time. White is better and black will have to be careful.]

23. ...cxb4
[23. ...Rxd1 24. Rxd1 axb4 (not an attractive move but 24. ...cxb4 25. Rd5 and black will lose a pawn) 25. Bg3 and white is better.]

26. ...Qc7?!
[Again black is wasting time.]

28. h4?!
[28. Rc5! Qd8 29. Rxe5 clean pawn advantage.]

29. ...Rd8?

[Losing error. It looks like a blunder because 29. ...Bxc4 30. Bxc4 Rd8 with the same idea is clearly better.]

31. ...Qb8
[31. ...Qd7 32. Bxa5 is hopeless as well.]

32. Qxa5
[Now the game is effectively over.]

Few more moves and 1:0.

======
Very weak play by Svidler who went down without any fight.

Mar-27-14  RedShield: Seven-time Russian champion? You're having a laugh!
Mar-27-14  Ulhumbrus: 9...b4? looks like a serious positional mistake. After this Topalov makes use of the square c4 and Black's a pawn is a permanent target.
Mar-27-14  GlennOliver: Computer analysis yields a repetition draw for this game -

35. Kh2 Qd7 36. Bg3 Ng6 37. h5 Nf4 38. Qxe5 Bd6 39. Qb5 Qe7 40. a5 Ne2 41. Bxf7+ Kh8 42. e5 Nxg3 43. exd6 Qh4+ 44. Kg1 Qd4+ 45. Kh2 Qh4+ 46. Kg1 Qd4+ 47. Kh2 Qh4+ 1/2-1/2

Mar-27-14
Premium Chessgames Member
  maxi: <GlennOliver> Check what you did; White is winning easily.
Mar-27-14  GlennOliver: What I did was to download the pgn for the game and run it through a computer analysis.

And that analysis repeatedly yields a repetition draw, with the line that I have posted.

I have just checked it again and found the same result again.

If you think differently, why not post the analysis which supports your view?

Mar-27-14  Jamesbowman: Powerful game by Topalov.
Mar-27-14  twinlark: <GlennOliver>

What sort of computer are you using?

After <35...Qd7 36. Qb6> making a passage for the a-pawn soon wins a piece.

Mar-28-14  david ne: twinlark, yup white will win
Mar-28-14  nalinw: Or 36. Qd5 is very strong too isn't it?
Mar-28-14
Premium Chessgames Member
  maxi: <GlennOliver> If the position is clearly won for White, any decent program will also give a win for White. Think about that, it cannot be otherwise.

Anyway, using Houdini 3x64 after 25 plys, 750 million moves, the continuation for your line 35...Qd7 is: 36.Qb6 Qd8 37.a5 etc., with a 4.75 point advantage, more than enough to win. The a Pawn forces Black to lose a piece.

Mar-28-14  GlennOliver: <twinlark>

A Dell Precision M6600.

Using your stated continuation of 36. Qb6, here's how the analysis then indicates a repetition draw -

35. Kh2 Qd2 36. Qb6 Bd8 37. Qa7 Qd7 38. Qb8 Qe7 39. Be1 Ba5 40. g3 g6 41. Qb5 Qc7 42. Bxb4 Bxb4 43. Qxb4 Ne6 44. Qd2 h5 45. a5 Nd4 46. Kg2 Kg7 47. a6 Qc5 48. Qa2 Nc6 49. Qa4 Qd4 50. Qxc6 Qd2+ 51. Kh3 Qe1 52. g4 Qh1+ 53. Kg3 Qg1+ 54. Kh3 Qh1+ 55. Kg3 Qg1+ 56. Kh3 Qh1+

Does White stand better at the point of resignation in this game? Yes, of course.

Can White force the win from that position? Not necessarily, as the analysis shows.

If you can achieve a better analysis, then please post it.

Mar-28-14  GlennOliver: "<maxi> If the position is clearly won for White ..."

Yes, that is the point we are debating.

Please refer to my reply to twinlark.

Mar-28-14  ikipemiko: <Glenn> I think you are using 20-year old chess program because this position is easily won even for my patzer eyes..
Mar-28-14  Nerwal: <9...b4? looks like a serious positional mistake.>

Black will probably need to play c5 at one point to get some play, and that's not possible as long as there is pressure on b5. b4 is a necessary evil and if there is a dubious move in this line it is rather dxc6.

<35. Kh2 Qd2 36. Qb6 Bd8 37. Qa7 Qd7 >

No need for long computer lines in this position (regardless of how strong those engines actually are). 38. ♕xd7 ♘xd7 39. ♗b5 is a pedestrian win to any player rated +1800. Probably even lower.

Mar-28-14  csmath: 9. ...b4 is not an error of any kind, it is one of the moves in the position. The alternative 9. ...Bb7 leads pretty much to the same anyway.

8. ...dxc6 also played many times before even by Taimanov himself.

As I pointed earlier it is clear that Svidler wasted time in the opening on two places on move 13 and on move 26. The error that loses the game was in 29th move.

For example
26. ...Qc7?!
[...Bd8 (planning Bc7) 27. Rd5 Ne6! threatening fork on f4 and while white is still better the advantage is not great.]

Taimanov is well analyzed opening and Topalov was utmost prepared here while Svidler played "casually."

Mar-28-14  csmath: This is also very typical of Svidler. He plays intensively prepared openings with great understanding BUT ... now and then he plays some semi-casual stuff like it is not important. Lack of energy, concentration, or both ... I don't know.
Mar-28-14  Ulhumbrus: One alternative to 13 Nc4 is 13 Bc4 beginning the plan of 14 Qe2, 15 Qe2 and 16 0-0-0. One justification is as follows.

As Nielsen and Cmilyte indicated, after 12 f3 Black is going play ...Bd6 and so attack the black squares on the king side.

This taken together with Black's QB on b7 suggests that Black's pieces will be aimed towards the king side.

Then why not castle on the queen side?

Mar-29-14  twinlark: <GlenOliver>

The line I stated followed <35. Kh2 Qd7>.

However if you prefer <35. Kh2 Qd2>, then instead <36. Qd5> forces the exchange of queens and creates another passed pawn wins easily, although as you observed <26. Qb6> also wins. For example, after:

<35. Kh2 Qd2 36. Qd5 Qxd5 37. exd5>:


click for larger view

If now <37...Bd8 38. Bc5 Ba5 39. Bb5> and Black is completed dominated.


click for larger view

White marches the king to confiscate the b pawn and create a third passed pawn, a protected one at that. Alternatively, if Black tries a break on the king side, then White's king stays in the centre ready to counter sequences like ...f5-e4. The two bishops are all powerful in this position.

This is a trivial endgame for GMs. Topalov didn't quit for no reason. He resigned as his game was completely in the toilet. :)

Mar-29-14  Ulhumbrus: As my previous message contained a typing omission I am sending it again.

One alternative to 13 Nc4 is 13 Bc4 beginning the plan of 14 Qe2, 15 Qe2 and 16 0-0-0. One justification is as follows.

As Nielsen and Cmilyte indicated, after 12 f3 Black is going to play ...Bd6 and so attack the black squares on the king side.

This taken together with Black's QB on b7 suggests that Black's pieces will be aimed towards the king side.

Then why not castle on the queen side?

Mar-30-14  nalinw: What computer program would not find
36. Qd5?

It does not matter if you are using a Dell Precision M6600 or even a Cray if you do not have a good computer program.

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