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Fabiano Caruana vs Levon Aronian
Sinquefield Cup (2019), St Louis, MO USA, rd 4, Aug-20
Spanish Game: Berlin Defense (C65)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Aug-20-19  Olsonist: Well, that's gonna cost some Re8ing points.
Aug-20-19  Steve.Patzer: Aronian’s 46th was erroneous.
Aug-20-19  csmath: Aronious move?
It really is unforced error, other than for a time. bxa4 is such a simple and obvious move. But on the other hand without enough time Qc5 looks logical ... unless you consider Re8!

And apparently Aronian did not have enough time to see that after hours of hard fight.

Aug-20-19  Casr: Hi! Is there any other berlin with an early sac on d6? I have seen none. And could anybody tell me why 42...Rd2 was played? I did not run it through no engine, nor my insights are meaningful at all, but shouldn't black be ok after 43 Qe8+ Kh7 44 Qe4+ Kh6 45 Rd3 Rxd3 46 Qxd3 Qxa2 47 Qxb5 Qd2 and so forth? Again, I haven't got the faintest idea as to how these endgames should sensible develop.
Aug-20-19  Casr: Was not* Sensibly* lord i do not know how to edit comments.
Aug-20-19  Steve.Patzer: I get what you are asking. What happens after 42....Rd2?
Aug-20-19  csmath: 42. ...Rd2


click for larger view

43. Qe6 Kh8 (or Kh7)
44. Qg4 (threatening Re3 and Qxh4)

44. ...Qxa2


click for larger view

45. Re3 and Qxh4 to follow

White retains great chances to win. More importantly that obstructive h4 pawn is now missing and that greatly reduces danger to white king. Losing this pawn would enable white to push his own h-pawn and create even more trouble for black as it is.

In other words, Rd2 is definitely not a good move.

Aug-20-19  Casr: Definetely miss that. Thanks for the lines and the time: i do appreciate it.
Aug-21-19
Premium Chessgames Member
  HeMateMe: instructive how white built a little house for his King to live (safely) in. black can't get a tempo to start a perpetual check. if he shifts his King to the black squares that give him access to g3 then white puts his king on the third rank and also is able to defend his passed pawns.
Aug-21-19
Premium Chessgames Member
  ajile: Lol, cg.com should call this game "Aronious move".
Aug-21-19
Premium Chessgames Member
  cormier:


click for larger view

Analysis by Houdini 4 <d 24 dpa done

1. + / = (0.62): 38.Qxa6> Qxb2 39.Kh2 h6 40.Rd1 Qf2 41.Qd6+ Kg8 42.Qd5+ Kh8 43.Qf5 Qe3 44.Rb1 Re4 45.Rxb5 Qxf4+ 46.Qxf4 Rxf4 47.Rb4 Rf5 48.Kg3 Ra5 49.a4 Kg8 50.Kf4 Kf7 51.Ke3 Ke6 52.Rg4 Rc5 53.Kd3 Rd5+ 54.Kc4 g5 55.Rd4 Re5

2. + / = (0.37): 38.Qc5+ Kg8 39.Rf2 Re2 40.Rxe2 Qxe2 41.Qd5+ Kf8 42.Kh2 Qxb2 43.Qa8+ Kf7 44.Qxa6 Qe2 45.Qc6 Qd3 46.Qc7+ Kg6 47.Qc5 h5 48.Qd4 Qc2 49.Qe3 Kh7 50.a3 Kh6 51.f5+ Kh7 52.Qf3 Kh6 53.h4 Qd2 54.Qg3

Aug-21-19
Premium Chessgames Member
  cormier:


click for larger view

Analysis by Houdini 4 d 22 dpa

1. + / = (0.42): 37...Qe6 38.Qc5+ Qe7 39.Qd4 Qd8 40.Qb4+ Qe7 41.Qb3 Qe6 42.Qxe6 Rxe6 43.Rf2 Rd6 44.f5 Rd3 45.Kg1 Ke7 46.Re2+ Kf7 47.Kf2 a5 48.Kg1 h5 49.Kf2 Rd5 50.g4 Rd3 51.Kg2 hxg4 52.hxg4 g6 53.fxg6+ Kxg6

Aug-21-19
Premium Chessgames Member
  cormier:


click for larger view

Analysis by Houdini 4 d 26 dpa done

1. = (0.20): 25...Ng4 26.Bd4 Nh6 27.Qf3 Kh8 28.Rde1 Nf5 29.Bf2 Qd6 30.Nc2 Bf7 31.Nd4 Nxd4 32.Bxd4 Bb6 33.Qf2 Bxd4 34.Qxd4 Kg8 35.a4 Rac8 36.Bc2 a5 37.Bd3 Re6 38.Rxe6 Qxe6 39.f5 Qd6 40.Bb5 Qe5 41.Qb6

2. + / = (0.45): 25...Nc6 26.Qf3 Bb6 27.Nc2 Na5 28.Bxd5 Bxd5 29.Rxd5 Bxe3+ 30.Nxe3 Qb6 31.Rd3 Nc4 32.Qd5+ Kf8 33.Qxc4 Rxe3 34.Rd4 Re4 35.Qb4+ Qxb4 36.Rxb4 Rxb4 37.cxb4 Rd8 38.g3 Kf7 39.Rf2 Kg6 40.Rc2 h6 41.Kg2 Rd4 42.a3 Kf5 43.Kh3 g5 44.fxg5 hxg5 45.Rf2+ Ke6 46.Kg2 b6 47.h3 Rd3 48.h4 gxh4 49.gxh4 f5 50.h5 Ke5

Aug-22-19  Nietzowitsch: Lemon Erronian strikes again.
Aug-23-19
Premium Chessgames Member
  thegoodanarchist: Could Fabi's prep be all the way out to move 36.h3, I wonder?

Yes, I think.

Aug-24-19
Premium Chessgames Member
  ajile: <Nietzowitsch: Lemon Erronian strikes again.>

lol

Aug-27-19  mmkstarr: What about 24...Qd7 25. f4 Rfd8 26. Qf3 to defend the pawn?
Aug-27-19  mmkstarr: What about early game pawn: 14...Nh5 so knight doesn't capture knight, pawn isn't used to recap, pawn isn't capped. Is black protecting that sole pawn a waste? This puts the knight at the side of the board which I've been instructed is a faux pas.
Aug-27-19  mmkstarr: Seeing as the game ended with a pawn push, I am thinking that early game pawn advantages were critical in the result.

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