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Rustam Kasimdzhanov vs Leinier Dominguez Perez
FIDE Grand Prix Thessaloniki (2013), Thessaloniki GRE, rd 5, May-27
Bogo-Indian Defense: Exchange Variation (E11)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 6 OF 6 ·  Later Kibitzing>
May-27-13
Premium Chessgames Member
  whiteshark: <eggert13: Official site says black won> I'm wondering about it, too.
May-27-13  DcGentle: *hmmm* Yes, should be a win for Black for sure.
May-27-13  DcGentle: Yes, Whychess.com also shows a win for Black now. Ok! :-) Deserved.
May-27-13  watwinc: A really strange game, ending with White's decision to go for purely passive defence in a RüP ending ...
May-27-13  Marmot PFL: Dominguz - I feel very well of course. He would be an upset winner if he could continue.
May-27-13  Marmot PFL: If they can switch games I would like to see Fabio win me some money.
May-27-13  DcGentle: Well, White's decision to trade down into this rook ending was wrong in hindsight, but this is hard to calculate before the fact. White had the only slightly worse game before and could have hold the draw most likely, by not trading.
May-27-13  DcGentle: Caruana as Black against Nakamura looks interesting for sure. Black has the advantage.
May-27-13  Marmot PFL: If white had played Nc5 earlier I thought he stood a little better. Maybe he was afraid of black's king side play.
May-27-13  haydn20: Didn't seem as if White could come up with a plan in this game. He drifts out of the opening into an endgame and fails to seize rank 7, concedes rank 2, misplays his Pawns, drops a Pawn and is about to drop a second, so resigns. As for Sr. Dominguez, who IS this guy?
May-27-13
Premium Chessgames Member
  tamar: White could continue with 40 Rg3 Kf7 41 Rd3 but with time control made, Black could win with 41...Rxf5 42 Rd7+ Ke6

But Kasimdzhanov should have played the moves out because if 42...Kg6 White draws by 43 Kg2 despite appearances.

May-27-13  outplayer: On the official site it is said that black has won.
May-27-13  Eyal: <[Dominguez] would be an upset winner if he could continue>

Well, compared to some of the others he's playing without pressure, since after two weak results in his previous GP tournaments he's practically out of the race for the two (Candidates) qualifying spots.

39...Ke8! avoids a check on the 7th rank in case of 40.Rg3 Rxf5 41.Rxg7, and then 41...Rg5+ forces a won pawn endgame.

May-27-13  Marmot PFL: Dominguez has back to back black's against Caruana and Griscuk, my guess is he loses at least one of them. Other than that his schedule looks favorable.
May-27-13  ajile: Is 34.f4? really necessary? Seems to drop a pawn for nothing.
May-27-13
Premium Chessgames Member
  An Englishman: Good Afternoon: Does anyone else think that 22.Qxe4 was a mistake? I feel suspicious of this move because White gets stuck with 3 pawn islands vs. Black's 2, and it *seems* he had more weak pawns as a direct result.
May-27-13  Eyal: <Is 34.f4? really necessary? Seems to drop a pawn for nothing.>

If White does nothing "special" Black is going to play eventually Rb2-Rb3, e.g. after preparing it by g5 (the point of 33.e4 was to defend against it by [33...Rb2] 34.f4 Rb3 35.Rg3); so Kasimdzhanov was trying to get some activity.

May-27-13  Eyal: And yeah, 22.Qxe4 looks like dubious simplification, though it's understandable that White started to feel uncomfortable after 21...Rd5; a move earlier, it was probably better to play instead of 21.Nd2 the more active Nb6, preventing that.
May-27-13
Premium Chessgames Member
  tamar: The big error though was 26 Rc5. I was really surprised Kasimdzhanov played it. Dominguez said that after that move he started to feel he had winning chances, and not just slight pressure for a lot of moves. (paraphrase, I would like to listen again, but no archive up at FIDE site)
May-27-13  Eyal: <tamar: The big error though was 26 Rc5. I was really surprised Kasimdzhanov played it. Dominguez said that after that move he started to feel he had winning chances, and not just slight pressure for a lot of moves. (paraphrase, I would like to listen again, but no archive up at FIDE site)>

The press conference can be watched at http://www.youtube.com/watch?v=c_Y4...; Dominguez actually said that about finding 31...a4! (creating the Rb3 threat).

Even after 26.Rc5, there may have been better chances to save the game by giving up a pawn immediately and going for active defense (almost always a better choice in rook endgames) with 29.Rd7 Rc1+ 30.Kg2 Rc2+ 31.Kg3 Rxb2 32.h4.

Btw, the Houdini evaluations on the official site show a jump in favor of Black after 31.Rb3, 31.bxa5 supposedly being the best move, but a deeper analysis shows that the resulting pawn endgame after 31...Rxc5 32.Rb3 Rb5 33.Rxb5 cxb5 should be winning for Black - Krasenkow on chesspro gives the forcing 34.e4 Kd6 35.Kf2 Kc5 36.Ke3 b4 37.axb4+ Kxb4 38.Kd4 Kxa5 39.Kd5 b5 40.f4 Kb6 41.Kd6 b4 42.e5 b3 43.e6 b2 44.e7 b1Q 45.e8Q Qb4+ picking up the f4 pawn with what should be a won queen endgame. (Dominguez at the press conference didn't give any concrete lines after 33...cxb5, just said that with a more active king and a better pawn structure this should probably be winning for Black.)

May-27-13
Premium Chessgames Member
  tamar: Dominguez explained the game beautifully, and was particularly proud of 28...Kf8, which anticipates 29 Rd7 Rc1+ 30 Kg2 Rc2+ 31 Kg3 Rxb2

Checking with Houdini, it prefers 28...h5, but you can tell by listening to Dominguez that he wanted to get his King in the center, so that after 30...a5 the King's proximity makes all pawn endgames won, as <Eyal> showed.

On Kasim's side, I think he got into a psychology of acquiescing into worse and worse positions, as long as he got rook endgames, and his series of moves 21 Nd2, 22 Qxe4, 26 Rc5, and 31 Rb3 got progressively worse.

May-27-13  Everett: I prefer <21.Nb6> looking for squares for the N via a4-Nc5 or a4-c3-e2-d4, after a properly timed d5 push. He sp,e circumstances he could even sac this pawn for the nice d4 square for the N.
May-27-13  Alpinemaster: A massive thorn in White's side was the mistaken belief that the c-file was open to the possibility of exploitation; a gross misinterpretation of White's future opportunities.

The true strategic faupax actually occurs on move 16. Qxc3. Obviously to all, this procedure surrenders the advantage of tempo to the former player; however, in terms of Strategic losses, this is the tip of the preverbial iceberg.

To put it simply three problems compound on top of the tempo loss:

-Intiative sways into the control of Black

-Ne4 and Re1 are simultaniously extinguished from assets to White's position into misplaced pieces

-The b-pawn losses the future prospect of c3-c4 assailing the center and actually busting up the c-file for the Q-R c-file battery assault on Black's Queenside

Indeed, this simple mistake was simply devastating to White's strategy; from move 15 the attack and control of the position belonged to the Grand Champion of Latin American Chess.

Keep an eye on Dominguez when you can spare it; he may just be the one to challange a victorious November Magnus in his first WC defense, years from now.

Regards,

-Alpinemaster

May-28-13  Everett: <Alpinemaster: A massive thorn in White's side was the mistaken belief that the c-file was open to the possibility of exploitation; a gross misinterpretation of White's future opportunities.>

I missed Kasim saying he had this belief. Where is the source?

Jun-11-13  notyetagm: Kasimdzhanov vs L Dominguez, 2013

Game Collection: PAWN FORK TRICK 22 Qc2xe4!? based on fork 24 f2-f3 hitting exposed g4-bishop

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Featured in the Following Game Collection[what is this?]
22 Qc2xe4!? based on fork 24 f2-f3 hitting exposed g4-bishop
from PAWN FORK TRICK by notyetagm

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