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Dmitry Jakovenko vs Victor Bologan
Karpov Poikovsky (2016), Poikovsky RUS, rd 7, Jul-30
Queen's Indian Defense: Kasparov-Petrosian Variation. Kasparov Attack (E12)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Jul-30-16  ajile: Horrible opening by Black. King in the center being checked at move 18? And against Jakovenko? Game over.
Jul-30-16  Whitehat1963: What happens if 15...Bxb5? Clearly, there's some serious kind of danger in doing that, but I can't find it.
Jul-30-16
Premium Chessgames Member
  saffuna: <What happens if 15...Bxb5?> ...Bxg5, I assume.
Jul-30-16  Whitehat1963: Huh? Care to explain?
Jul-30-16
Premium Chessgames Member
  saffuna: <What happens if 15...Bxb5?> Sorry, as I see it that's not possible.
Jul-30-16
Premium Chessgames Member
  tpstar: Fritz 10 Deep Position Analysis [618MB]:

15 ... Bxg5


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16. Bb5 Qxf3 17. Re1+ Kf8 18. gxf3 g6 19. Qe4 [2.61/20]

<Whitehat1963> If 15 ... Bxg5 then 16. Bb5 is a Discovery on the Black Queen. The only safe square is 16 ... Qe6, and then 17. Re1 wins Q for R while the Bg5 is still hanging. Note 15. Bg5 connects the Rooks so the Bd3 is no longer pinned. Fritz suggests the unbalanced 16 ... Qxf3 so Black gets BNP for Q with a wrecked Kingside for White but this should be an easy win at the GM level.

Whenever White plays e4 against the Queen's Indian, something went horribly wrong for Black.

Jul-30-16  Kwesi: 15...Bxg5 16.Bb5 and Black has to give up the queen.
Jul-30-16  CountryGirl: Dimitry has Viktor's number - 8 to nil with but one draw....
Jul-30-16  Whitehat1963: Okay, I see that now. Thanks, <tpstar>. Now, why is 17...Kxd8? Why can't black take back with the bishop or knight?
Jul-31-16
Premium Chessgames Member
  tpstar: <Whitehat1963> We learn how to calculate by considering one option at a time, then looking for a refutation. The theme for this short game is pins; an Absolute Pin means it can't move, a Relative Pin means it shouldn't move, and a Terminal Pin is against a mate threat.

17. Rxd8+ leaves Black with all bad choices. If 17 ... Bxd8 then 18. Qe4+ wins a piece:


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1) 18 ... Kf8 19. Bxd8 Qxd8 (19 ... Nxd8? 20. Qe8# - Terminal Pin) 20. Bxc6

2) 18 ... Kd7 19. Rd1+ Kc8 20. Qf5+ Kb8 21. Bf4 (Absolute Pin) wins the Queen.

Next, look at 17 ... Qxd8 18. Bxe7:


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18 ... Nxe7 is illegal (Absolute Pin), 18 ... Qxe7 loses the Queen to 19. Re1 (Absolute Pin), and 18 ... Kxe7 loses a piece to 19. Qe4+ Kf8 (19 ... Kd7 20. Rd1+ Skewer) 20. Bxc6.

The game went 17 ... Kxd8 18. Rd1+ Ke8, and look at 18 ... Kc8 instead:


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19. Qf5+ Kb8 20. Bf4 (Absolute Pin) again.

White won after 21. Rd6 as the Nc6 and the Be7 are both frozen (Absolute Pin). Keep studying! =)

Jul-31-16  Whitehat1963: Very nice, <tpstar>! Very much appreciated! I wish I had more time for study, but honestly, I'm not sure it would do me much good! I just can't see all the options so well. I'm sure I'm better than I was, say, 30 years ago, but I'm obviously a weak player compared to so many commenters on this site.
Aug-01-16
Premium Chessgames Member
  An Englishman: Good Evening: Allowing e2-e4 is not necessarily bad in this variation of the Queen's Indian. However, 10...Rc8 *might* be a serious error. The database has one precedent, I Farago vs B Podlesnik, 1999, and if anything, that 25 move miniature mauling was even bloodier than this.
Sep-20-16  dm1991: I've watched this game live. 10... ♖c8 is just awful. After 11. d5 there's no chance of opening the c file which makes the rook hitting on it's own c5 pawn. In my eyes it's just a loss of time which thanks to white's dynamic play in next couple of moves proved to be serious. On move 14 black has an exposed queen, king in the open centre and a misplaced rook.

I love how Dima played with his bishops in this game. 15. ♗g5 and 16. ♗b5 generated just too many pins for black to handle. 21. ♖d6 is just a pretty finishing touch which i sadly missed. It only would look better if white rooks on move 16 would be a bit better positioned like in the diagram below.


click for larger view

Not a characteristic Jako's game (no grinding endgame) but when you give him an opportunity he will happily use it without second thoughts.

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