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Leinier Dominguez Perez vs Daniel Stellwagen
Corus Group A (2009), Wijk aan Zee NED, rd 9, Jan-27
French Defense: Winawer. Poisoned Pawn Variation Main Line (C18)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Jan-27-09  dhotts: What is wrong with 24...Qxh1?
Jan-27-09  Chuckles: I don't have an engine handy to check, but I believe the point of 24...Qf3 is to make the Qg3 check available. For example, after 24...Qxh1 White could play 25.Qb6, threatening mate on a7. However, 24...Qf3 25.Qb6 Qg3+ and White is just getting mated.
Jan-27-09
Premium Chessgames Member
  Eyal: Apparently 24...Qxh1 was indeed better; 25.Qb6 Rc7 is very unclear, e.g. 26.Qxa6 Nc6 or Nd5; another possibility is 25.Qxe7 Qf3!. So Dominguez should probably have played Qxb7+! transposing to a won endgame already at move 24.

According to chessok the novelty was 17.Nb5 (instead of Bd2), but chessbase database contains 3 correspondence games that reached the position after 18...a6 - in all of them White played 19.Rb2, allowing Nc4 with tempo, whereas Dominguez doesn't bother to defend the c-pawn. It seems that Stellwagen went wrong with 20...d4 - this is often a key move for Black in this line if he's able to play it in good timing, but here it doesn't work tactically.

Jan-27-09  jovack: zugzwang for black
Jan-27-09  AuN1: lenier is en fuego.
Jan-28-09
Premium Chessgames Member
  whiteshark: Stellwagen as black against Dominguez played a very sharp gambit in the Winawer French. The Dutchman ambitiously sacrificed a second pawn with <20...d4!>, and after the game Dominguez said he maybe should have tried <21.Qxc4>, simplifying instead of accepting the second pawn. Still, had white taken <24.Qxb7+!> instead of his <24.Be3>, he could have kept the advantage.

In the game Daniel underestimated, and thus passed on, the cool <24...Qxh1!>


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where <25.Qb6 Rc7!> holds the position without problem, or <25.Qxe7 Qf3!> and black is doing well.

The endgame that arose was very promising for white, who could have improved with <36.Rb1+!> and now trading rooks wins easily, and moving the king runs into <37.h6> without black having ...Rb4 anymore. Black managed to steer the game to a rook ending a pawn down, with the pawns on the same side, but alas his king was too far away from the action to save the game. When the rooks came off the easily won pawn ending did not require playing, as Stellwagen acknowledged defeat.

fm rd9 report

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