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Alexey Shirov vs Dmitry Jakovenko
World Cup (2007), Khanty-Mansiysk RUS, rd 5, Dec-06
Spanish Game: Marshall Attack. Modern Variation (C89)  ·  1-0



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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Sep-10-10  Patriot: <echever7> What happens after 29.Re2 Qxb2? I figured 30.Rae1 Rxd4 and it seems difficult for white to hold on to his extra piece.
Sep-10-10  gofer: Now this is a nasty little position. White is 2 pawns up but has allowed the black queen to get a foothold on the 2nd rank and she is going to be difficult to shift! If white moves the knight we get Qg2#, so only have two options, surrender the knight for the bishop or try and protect it...

Option 1

29 Qxh3 Qxd2 (Qxb2 Nb3 winning)
30 Rad1 Qxb2 (Red1 Qe3+ causes problems for white)
31 Qg2 ...

and white has weathered the storm and has still one pawn to show for it and its a passed pawn!

Option 2

29 Red1 Qxb2
30 Qxh3 Rxd4
31 Nb3 Rxd1+
32 Rxd1 Qxa2

and black has some compensation for the bishop. I have to confess that this is too tricky for me. Nothing is clear to me. Option 1 seems okay for white, but option 2 isn't too horrendous either! Time to check...

Sep-10-10  Nut: <Once> .... you slay me. Carry on, sir (or madam, I suppose).
Sep-10-10  kevin86: White protects his piece,then captures black's...
Sep-10-10  patzer2: Correction: For today's Friday puzzle, 29. Red1! traps the Black Bishop and wins a piece. However, 29. Rae1?! is a mistake since 29...Rfe8! avoids the loss of the piece and keeps Black in the game with only a slight advantage for White.

P.S.: Per an inadvertent overnight run of Fritz 10, White has only a slight advantage after 29. Rad1 Rfe8 30. Qxh3 Rxe1+ 31. Rxe1 Qxd2 32. Rf1 Qxd4+ 33. Rf2 Rf8 34. Qf1 Qd5 35. a3 f4 36. Qe1 Qf5 37. Qe4 fxg3 38. hxg3 Qg5 (+0.46/@22 depth).

Sep-10-10  Ferro: D'Artagnan
Sep-10-10  KNIGHTSTALE22: <Once> I love your stories, they are brilliant. I used to come to chessgames for the puzzles, now I come just to read your short stories.
Premium Chessgames Member
  agb2002: White has a knight and two pawns for a bishop.

Black threatens to capture the knight and the pawn on b2. The black bishop doesn't have any safe square to move. Therefore, protect the knight

with 29.Re2, 29.Rad1 or 29.Red1.

In the case of 29.Re2:

A) 29... Rfe8 30.Rae1 followed by 31.Qxh3 + - (30... Rxe2 31.Qxd8+ and 32.Rxe2).

B) 29... Rde8 30.Rae1 (30.Rxe8 Rxe8 31.Qxh3 Qxd2 32.Qxf5 Qxd4+ and 33... Qxb2 or perhaps 32... Re2) Rxe2 (30... Qxd2 31.Rxd2 Rxe1+ 32.Kf2 Rf1+ 33.Ke2 Bg2 34.Rd3 + -) 31.Rxe2 Qd1+ 32.Kf2 Bg2 (32... Bg4 33.h3) and the king can't capture the bishop. For example: 33.Qe7 Qh1 (or 33... Bh3 repeating the position) 34.Qe6+ Kh8 35.Qf7 Qxh2+ 36.Ke3 Qxe2+ 37.Kxe2 Rxf7 - +.

The second option yields 29.Rad1 Rde8 30.Qxh3 Rxe1+ 31.Rxe1 Qxd2 followed by 32... Qxd4+ and Black is still alive.

After 29.Red1 Rde8 30.Qxh3 Re2 31.Nf1 (to protect h2) Rfe8 and I'm not sure that Black has enough counterplay.

An alternative is 29.Qxh3 Qxd2 30.Qg2 Qxd4+ (or 30... Rxd4 31.Re2) 31.Qf2 trying to exploit the queenside majority.

I think I would try 29.Red1.

Sep-10-10  kramputz: <Once>...... <and white can steal two pawns but he cannot save his bishop on h3.> It should read...."black can steal two pawns ....etc"
Sep-10-10  LIFE Master AJ: Today's problem was not much of a puzzle, 29.Red1, and White nets a piece.

However, I doubt to many people could have played with Sirov's level of techique and elan. (Black had a lot of pressure.)

Premium Chessgames Member
  Once: <kramputz> As ever, you are keeping me on my toes. In my defence, I am trying to solve the puzzles in human mode, then copy and paste into Fritz for his opinion, then think up a story or an angle (and I do try to do a different one each day), then I write it and press kibitz. And in all in about 45 minutes or an hour.

And that means that I will sometimes confuse my wacks and blights. Mind you, I am still mildly ashamed of the time that I tried to move a piece to h9....

Sep-10-10  DarthStapler: I got the first move but I discarded it because I figured black could just play Rxd4. I overlooked the fact that the queen was guarding d4.
Premium Chessgames Member
  chrisowen: Clavates entertain red1 salaries tick produce club tomato qxb2?

Sandwich bishop dig nadir black capitulate not without a fight. Gag a pawn stop white's attack decay rook sustain release envelop b4.

15.g3 constructive solid geometry just dance black queen away it draws smoke. In Jak source worry bore 37 bone knight and rook contend file. A cycle finger throw rc2 diddly squat black. Lift F5 re zing queen cheapshot Qc6 Qxa6 Alexey on paper shear off.

Sep-10-10  David2009: Shirov vs D Jakovenko, 2007 White 29?

I am coming to this problem late, I expect everything has already been said. White is two pawns up: how best to consolidate? Certainly not by 29 Nb3?? trapping the Bishop but allowing Qg2 mate. The natural move is 29 Rad1 expecting 29...Qxb2 30 Qxh3 Rxd4 32 Nb3 and White is a N ahead with every prospect of converting his advantage to a win. However Black can answer 29 Rd1 with 29...Bg2! If 30 Kxg2 Qxb2 and if 31 Re2 Qc2 wins material. Better is 31 Kf1 Rxd4 forking N and Q and forcing 32 Ne4 abd after 32...fxe4 Black is on top.

White can avoid all this with 29 Qxh3 Qxd2 White has now an interesting choice: 30 Rd1!? Qxb2 31 d5 and if 31...Qxa2 32 d6 with an exciting, unclear position with good winning chances for both sides; or the prudent 30 Qg2 Rxd4 31 Kf1 entering a heavy piece ending a Pawn up.

Time to check the game and see what I have missed:
<and see what I have missed>: A great deal! White plays 29 Red1! and now 29...Bg2 does not work because the other Rook harries the Queen. In fact, after 29 Rae1, 29...Bg2 loses by force: 30.Kxg2 Qxb2 31.Qg5! (the move I had missed) Rxd4 32.Qe3 Rfd8 33.Qe6+ Kf8 34.Qxf5+ Kg8 35.Qe6+ Kf8 36.Kh3 Rxd2 37.Qe7+ Kg8 38.Re2

click for larger view

and the cross-pin wins for White.

However, Red1! is still the most accurate move, since 29 Rad1 can be met by Rde8!

click for larger view

which saves the piece and leads to a major piece ending with Black a Pawn down.

Crafty link to the puzzle position try out variations:

Sep-10-10  wals: I chose the right piece but the wrong move.

Black. depth 19.
(+0.61):20...Bf5. Better, b4, 0.43,
or Rfe8, 0.47.

(+1.51):24...f5. Better, Rfe8, +0.75.
Be7, +0.90.

(+2.23):29...Qxb2.Better, Bg4, +1.60.

(+3.16):39...f4. Better, Qa5, +2.32.

Analysis by Rybka 64 x 4:

White finished with a Knight for a pawn which approximated the final score value, +2.85.

Sep-10-10  Dionysius: I'm not clear why this was chosen as a puzzle. The natural ploy is to defend the N and leave black to get what he can for his stuck bishop. All that's left is to chose the right R to move to d1. Not a particularly satisfying solution - no shock of recognition of an exciting move. Is it a spoiler - is there a better move than Shirov played, or am I (rusty player that I am) missing some profundity or excitement behind Red1? Sorry to be obtuse - no part pooper me!
Sep-10-10  echever7: <Patriot: <echever7> What happens after 29.Re2 Qxb2? I figured 30.Rae1 Rxd4 and it seems difficult for white to hold on to his extra piece.>

Simple, 29.Re2-Qxb2 30.Rae1- Rxd4 31.Nf1- and 32.Qxh3 winnig a piece.

Instead 30...Rxd4 it seems stronger 30....Qxa2 observing that the white d-pawn is weak and can be captured soon after.

But WAW, I found a little sequence 30...Qxa2 31.Ne4!-Q moves 32.Ng5-h6 and 33.Ne6 winning easily.

Sep-10-10  pferd: <echever7:
Simple, 29.Re2-Qxb2 30.Rae1- Rxd4 31.Nf1- and 32.Qxh3 winnig a piece.>

31.Nf1 Qxe2 32.Rxe2 Rxh4 33.gxh4 Bxf1 34.Kxf1 and Black is better, I think.

Sep-10-10  echever7: Wait a minute. 29.Re2-Qxb2 30.Rae1-Qxa2 31.Qxh3-Rxd4? 32.Ne4 winning after Ng5-e6.

Instead Rxd4 better 31...Qd5 centralizing the queen.

In the variant I showed in my previous comment is a little nuance: 31...Qc4 in order to respond 33...Rde8

Anyway white have a strong extra figure that must guarantee a victory.

Sep-10-10  echever7: < pferd > Oh yes, you're right! Thx. I mentally have the queen in h3 already What a confusion ! :) And obviously, is impossible the maneuvre with Ne4-g5 with the black rook in d4 and the white queen in h4.

And doesn't work 29.Re2-Qxb2 30.Rae1-Rxd4 31.Ne4 because of 31...Qb4 (31.Ne4 with th idea Kf6+)

It's necessary to conform with the boring 29.Red1? Or even is there a maneuvere I'm missing in this variant?.

Sep-10-10  echever7: One more com <pferd> : in the variant you showed it seems to me 33....f4 is stronger than Bxf1. The bishop performs better in open positions with pawns on both sides
Sep-10-10  M.Hassan: "Difficult"- White to move 29.?
White is 2 pawns up
I spent quite a bit of time on this puzzle and at the end concluded that the game may have continued in one of the two following lines

Line A
29.Red1 Qxb2
30.Qxh3 Rxd4
31.Nb3 Rxd1+
32.Rxd1 Qxa2
33.Nc1 Qa5
34.Qf1 b4
White is up in material in this line

Line B
29.Red1 Qxb2
30.Qxh3 Qxd4+
31.Kh1 Qf2
White is again up in this line and several combinations after move 32 is possible. Time to check

Sep-11-10  CHESSTTCAMPS: I worked on this one, but didn't complete my writeup before the puzzle turned over.

In this dynamic position, each side has a minor prise en prise to the opposing queen, but white has a clear advantage with the move and a temporary two-pawn lead. White can go for a definite endgame advantage with 29.Qxh3 Qxd2 30.Qg2 (Qxd4+ 31.Qf2) or 30.Rad1 (Qxb2 31.Qg2), but this invites a double rook and pawn ending (with a one pawn advantage) that may entail technical difficulties. The trapped position of the Bh3 raises the alternative possibility of white playing to win a piece by protecting the pinned knight. Three candidate rook moves might be considered (given that Qb5 or Qc4 removes the attack on the Bh3):

(I) 29.Rad1
(II) 29.Re2
(III) 29.Rfd1

(I) 29.Rad1 Rde8 30.Qxh3 Rxe1+ 31.Rxe1 Qxd2 32.Qf1 Qxd4+ 33.Qf2 Qd5 and white's advantage is small but may be enough.

(II) 29.Re2 Qxb2 30.Rb1 Qxa2 31.Qxh3 Rxd4 32.Rd1 Rfd8 and black gets the piece back with advantage.

(III) 29.Red1 Qxb2 30.Qxh3 Rxd4 31.Nf1 Rxd1+ 32.Rxd1 Qxa2 33.Qg2 and the extra piece should win.

(III.B) 29... Rfe8 30.Qxh3 Re2 31.Nf1 (31.Qf1 Rxd2 32.Rxd2 Qxd2 33.Qf2 {Qxb5 Rxd4 leaves black in good shape) and the d-pawn + knight should win, even though the passivity of the white pieces is troublesome.

(III.B.2) 30... Rxd4 31.Qg2 Red8 and it seems that white must again return the piece under less than ideal circumstances.

OK, I'm stumped. I would play 29.Qh3 (especially in time pressure) as discussed in the intro. Time to check...


It seems I was headed in the right direction, but couldn't close the deal. Need to review.

Jul-24-12  freeman8201: Man...the queens are zipping all over the place!!! 0_o
Jul-24-12  rounak: not a good game!!!!!!!!!
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