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Leinier Dominguez Perez vs Wesley So
Tata Steel Masters (2014), Wijk aan Zee NED, rd 8, Jan-21
Russian Game: Nimzowitsch Attack (C42)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Jan-23-14
Premium Chessgames Member
  Gypsy: <If 21Bxf3 22.Rxg7+ Kxg7 23.Qh6+ Kg8 24.Qxg6+ Kf8 (24Kh8 25.Qh6+ transposes) 25.Qh6+ Kg8 and now 26.g6!! and it's curtains for Black.>

Yes, Black's <16...g6?> was, for all practical purposes, his decisive error. In turn, White's <26.g6!...> was the crowning move to his win in what became the main variation of the combination. Kind of a nice symmetry.

Jan-23-14  rickycota: black 16.d4? is what's wrong with it?
Jan-22-15  KingchecksQueen: 19) Rh7 was a shocker!!!
Feb-14-15
Premium Chessgames Member
  piltdown man: How DARE these scoundrels feature a loss by the Golden Boy against a pampered goldfish! It's an outrage!
Feb-14-15  iking: <piltdown man: How DARE these scoundrels feature a loss by the Golden Boy against a pampered goldfish! It's an outrage!> .. sarcasm is an indirect proof of mutation ...
Feb-14-15  iking: <KingchecksQueen: Wesley has a weakness: Mediocre opening knowledge (0r lack of preparation). In other words, he is not so strong in the opening. Dominguez exploited it.> ... word of wisdom from an opening expert ...
Feb-14-15  gofer: I wonder whether yesterday's answer is today's answer too!? That would be a little playful fo <CG>. What would be more mean would be that this turned out to be the wrong move and I am then wasting my time looking at it, but hey its a Saturday and I have time to kill...

<19 Rh7 ...>

19 ... Kxh7
20 Qxf7 ...

Errr, all roads lead to Rome. I cannot see a defense for black! So, black cannot accept!!!

<19 ... d4>

Black sticks with plan "A" giving Bb7 some luft! Threatening 1 ... Bxf3 2 Qxf3 Qxg5+!

20 Rxb7+ Kxb7
21 Ne5 ...

Don't think this is so clear... ...Have <CG> spoiled my Saturday???

~~~

Doh! <20 Bc4!> was really nice, the combo does work.

I have been looking at <20 ... Bxf3> and I think the following may be true...

20 Bc4 Bxf3
21 Rxg7+ Kxg7
22 Qxf7+ Kh8
23 Qxg6 Qe7
24 Qh6+ Qh7
25 Qf6+ Qg7
26 Qxf3 Qxg5+
27 Kb1


click for larger view

Feb-14-15
Premium Chessgames Member
  patzer2: Here's my look with Fritz 12 and the Opening Explorer:

<8...b6> I share <csmath>'s opinion this is not an impressive idea, as evidenced by the outcome in this game and Nakamura vs Wang Hao, 2013.

My preference is for more active development with 8...Nc6 (the most frequently played move in the cg opening explorer) as in Caruana vs D Fridman, 2013 and Naiditsch vs D Fridman, 2014.

<16...g6?> I agree this weakening move is a decisive error. There is a much better alternative available with 16...d4 when Fritz indicates play might continue 17. h6 g6 18. cxd4 Bxf3 19. Qxf3 Qxd4 =.

<19. Rh7!!> This solves today's Saturday puzzle, but it's not so clear without detailed analysis.

<19...d4 20. Bc4 Qe7?>

Black can put up more resistance and give White opportunity to go wrong with 20... Bxf3!, but with accurate follow-up White wins after 21. Rxg7+ Kxg7 22. Qxf7+ Kh8 23. Qxg6 Re7 24. Qf6+ Rg7 25. Qxf3 Qxg5+ 26. Kb1 Rd8 27. cxd4 cxd4 28. Bd3 Kg8 29. a4 Qe7 30. b3 Qf8 31. Qh3 Qf6 32. Re1 .

<21. Qh4 1-0> Black resigns in lieu of possibilities like 21...♕d6 22. ♖h1 ♖e1+ 23. ♘xe1 ♗xh1 24. ♕xh1 ♖b8 25. ♘d3 b5 26. ♗d5 dxc3 27. bxc3 ♖d8 28. ♗xf7+ ♔xf7 29. ♕h6 ♕f8 30. ♘e5+ ♔g8

If 30... Ke6, then 31. Qxg6+ Kxe5 32. Rxg7 Qd6 33. Qh7 Qd1+ 34. Kb2 b4 35. Re7+ Kd6 36. Qf7 bxc3+ 37. Ka3 Qc1+ 38. Ka4 Qxc2+ (38... c4 39. Qe6+ Kc5 40. Rc7+ Kd4 41. Rxc4#) 39. Ka5 Qxa2+ 40. Qxa2 .

If 30... Ke8, then 31. Qxg6+ Ke7 32. Rxg7+ Qxg7 33. Qxg7+ .

31. ♖h8+ ♗xh8 32. ♕xg6+ ♕g7 33. ♕e6+ ♔f8 34. ♘g6+ ♕xg6 35. ♕xg6 .

Feb-14-15
Premium Chessgames Member
  al wazir: My idea was 19. Bxg6 fxg6 20. Rh7 Kxh7 21. Qf7, with the threat of 22. Rh1+ and mate to follow.

But what if the ♔ doesn't capture the ♖? For example, 20...Rf8. Then I was going to play 21. Qh2/Qh4 (I couldn't decide which), with the threat of 22. Rxg7+ Kxg7 23. Qh6+ Kg8 24. Qxg6+ Kh8 25. Rh1#.

But black can stop that by 21...Bxf3, covering h1. So my idea doesn't work.

In the game line, why doesn't black answer 20. Bc4 with 20...Bd5, unpinning the f-♙? If 21. Bxd5 Qxd5 22. Qh4, then I suppose black has 22...Qxf3. If now 24. Rdh1, then 24...Kf8 25. Rxg7 Ke2 (not 25...Kxg7).

And why didn't white play the immediate 20. Qh4 instead of 20. Bc4 ?

Feb-14-15
Premium Chessgames Member
  morfishine: Same or similar pattern seen throughout the week: Rook sacrifice on <h7> followed by Queen invasion at <f7> allowing the other rook to mate. In essence, the Black King is overloaded having to protect both <h7> & <f7>

<19.Rh7> The rook cannot be captured. White threatens Qh4 followed by Rxg7+ & Qh6+ & Rh1 mating

I cannot find a decent reply, but thats not saying much as I almost always drift into weaker defenses

Black's position is laid bare and exposed: Besides having to protect <h7> & <f7> the overloaded King is also tasked with protecting the Bishop on <g7>! This is just too much

*****

Feb-14-15
Premium Chessgames Member
  Richard Taylor: I found Rh7 fairly quickly with pressure down the h file or if black takes mate on that file...after Qxf7.
Feb-14-15
Premium Chessgames Member
  Richard Taylor: f6 is a key square if White can get is Q there and then either take the B on g7 and or bring another R to h1.

Nice attack by white.

Feb-14-15
Premium Chessgames Member
  Richard Taylor: < Sneaky: <chessnoob2014: I think if 21....Bxf3, White's attack collapses. White can't go Rh8 because of Bishop and Rxg7 only loses material.> That's what I thought for a moment as well, but it's not true. If 21Bxf3 22.Rxg7+ Kxg7 23.Qh6+ Kg8 24.Qxg6+ Kf8 (24Kh8 25.Qh6+ transposes) 25.Qh6+ Kg8 and now 26.g6!! and it's curtains for Black.

Very pretty combination.>

I saw that line myself but I have to concede I didn't calculate the entire set of tactics but I think OTB I would have found most of the tricks.

Tricky is 20....Bxf3 when I think the best is the 21. Bxf7+ etc although it may not be the only winning method.

Feb-14-15
Premium Chessgames Member
  Richard Taylor: That is if then 21. ... Qxh7 22. Rh1+! Bxh1 23. Qh4 and mates and there are other ideas. Possibly Rxg7+ comes into it also in that sub line...
Feb-14-15  wooden nickel: 19.Rh7 looked good, but there are many lines to check i.e. 19. ... Qe7 20.Qh4 f5 21.gxf6 Qxf6, ... almost overlooked 22.Qxf6 Bxf6 and Black's Bishop is hanging 23.Rxb7!


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Feb-14-15
Premium Chessgames Member
  Richard Taylor: It's no shame to fall for that attack it is harder to find those attacking lines when one is defending and although it's hard to find all the clever lines as White (I just went by intuition as I would in a blitz game, but OTB one needs to do careful calculation) as the position is such that that kind of attack is in the air so to speak.

But probably Carlsen would be wary of it so it is just something these players have to improve.

I don't face this Russian opening very much and have always found it a bit hard to play against. I think this system that white played is quite popular though.

But Capablanca often simply forced the Queens off (5. Qe2) and won the ending as White! If a player is wary of complex book lines it is one way of proceeding.

Feb-14-15  ProdigiousPoker: <KingchecksQueen: Wesley has a weakness: Mediocre opening knowledge (0r lack of preparation). In other words, he is not so strong in the opening. Dominguez exploited it.>

Agreed. Black fianchettos his queen-side bishop after white castles king-side. What does this do for him? In contrast look at white's 12th position. All set to begin crashing down on white's kingside.

Feb-14-15
Premium Chessgames Member
  Penguincw: The only thing I could come up with was 19.Qh4.
Feb-14-15
Premium Chessgames Member
  Longview: I had forgotten yesterday's position already but thought 19. Qh4 was what I would have started with. It must let the King escape and come away with a captured Bishop and a devastated King side but not a win. I must admit not having noticed, in my quick perusal I failed to see the possible coordination of the d1R with Rh1 later is a better way to keep the King trapped and as <morfishine> points out the key to the process is the overloaded King. Sorry to be lazy today.
Feb-14-15  Nick46: <iking: <piltdown man: How DARE these scoundrels feature a loss by the Golden Boy against a pampered goldfish! It's an outrage!> .. sarcasm is an indirect proof of mutation ...> How So?
Feb-14-15
Premium Chessgames Member
  agb2002: White has a bishop and a knight for the bishop pair.

All five white pieces can attack the black castle, which is only defended by the king's bishop. This suggests 19.Rh7, to be able to play Rxg7 when convenient:

A) 19... Kxh7 20.Qxf7 wins due to the threat 21.Rh1#.

B) 19... c4 20.Qh4

B.1) 20... cxd3 21.Rxg7+

B.1.a) 21... Kxg7 22.Qh6+ Kg8 23.Rh1 f6 (23... d2+ 24.Kxd2 just loses a pawn; 23... f5 24.Qxg6+ Kf8 25.Rh8+ Ke7 26.Rh7+ Kf8 27.Q(R)f7#) 24.Qxg6+ Kf8 25.Rh7 wins (25... Q(R)e7 26.Rh8#).

B.1.b) 21... Kf8 22.Qh7 Qc(d)7 23.Qg8+ Ke7 24.Qxf7+ wins.

B.2) 20... Re7 (to control the seventh rank) 21.Rxg7+ Kxg7 (21... Kf8 22.Qh8#) 22.Qh6+ Kg8 23.Rh1 f5(6) 24.gxf6 Rc7 (24... Rf7 25.Qh8#) 25.Qg6+ Kf8 26.Rh8#.

B.3) 20... Re6 (to protect g6) 21.Rxg7+ Kxg7 (21... Kf8 22.Qh7 wins decisive material) 22.Qh6+ Kg8 23.Rh1 f5(6) 24.Qh8+ Kf7 25.Rh7#.

B.4) 20... Bf8 21.Rh8+ Kg7 22.Qh6(7)#.

B.5) 20... d4 21.Rxg7+ as in B.1.

C) 19... d4 20.Bc4

C.1) 20... Kxh7 21.Rh1+ Bh6 (21... Kg8 22.Qxf7#) 22.Qxf7+ Kh8 23.Rxh6#.

C.2) 20... Bd5 21.Bxd5 Qxd5 22.Rxg7+ Kxg7 23.Qf6+ followed by 24.Rh1 winning.

C.3) 20... Re7 21.Rxg7+ Kxg7 22.Qf6+ wins (22... Kf8 23.Qh8#; 22... Kh7 23.Rh1+ Kg8 24.Q(R)h8#.

C.4) 20... Qe7 21.Rxg7+ Kxg7 22.Re1

C.4.a) 22... Be4 23.Bd5 wins the bishop (23... Bxd5 24.Rxe7 Rxe7 25.Qf6+ Kf8 26.Qh8#).

C.4.b) 22... Qxe1+ 23.Nxe1 Rxe1+ 24.Kd2 Re6 (24... Re7 25.Qf6+ Kf8 26.Qh8#) 25.Bxe6 fxe6 26.Qf6+ wins.

C.5) 20... Qc(d)7 21.Rxg7+ Kxg7 22.Qf6+ as in C.2.

C.6) 21... Rf8 22.Rdh1 followed by Qh4 looks winning.

D) 19... Qb8 20.Rxg7+ Kxg7 21.Qf6+ followed by Rh1 wins.

E) 19... Qe7 21.Qh4 as in B.

Feb-14-15
Premium Chessgames Member
  Richard Taylor: < wooden nickel: 19.Rh7 looked good, but there are many lines to check i.e. 19. ... Qe7 20.Qh4 f5 21.gxf6 Qxf6, ... almost overlooked 22.Qxf6 Bxf6 and Black's Bishop is hanging 23.Rxb7 >

Very good. For some reason I missed that defence of f5. I still would have played Rh7 on the basis of the other lines and assumed there was a way through (although I should know by now I've lost too many games by jumping in boots and all like that!) although I suppose it depends on how much time a player has on the clock. At least seeing one or two winning lines means one would have a serious "think" considering as many of Black's defenses as possible...

Feb-15-15  CHESSTTCAMPS: Influenced by Friday POTD, I had:

19.Rh7!!

Once again, immediate acceptance of the rook offer is quickly defeated, but other replies are much more difficult.

A) 19... Kxh7 20.Qxf7 and black can't stop the winning Rh1+/|#

B) 19... d4 (to stop the reload by controlling h1) 20.Bc4! (unsatisfactory is 20.Qh4 Bxf3) Bd5 21.Bxd5 Qxd5 22.Rxg7+! Kxg7 23.Qf6+ Kf8 24.Rh1 Re1+ (forced) 25.Rxe1 Kg8 (otherwise 26.Qh8#) 26.Rh1 forces mate.

B.1) 20)... Kxh7 21.Rh1+ Kg8 (Bh6 22.Rxh6+) 22.Qxf7#

B.2) 20)... Bxf3 21.Rxg7+ Kxg7 22.Qxf7+ Kh8 23.Qxg6 Re7 (to stop 24.Qh6#) 24.Qf6+ Rg7 25.Qxf3 Qxg5+ 26.Kb1...

But here I got stuck. In B, I also considered 20.Ne5, but it looks drawish and in B.2 I spent time on 21.Bxf7+ but it doesn't quite work. Time for review...

Feb-15-15  CHESSTTCAMPS: Based on Patzer2's analysis, I was on the right track, but no cigar. The game defense was weak.
Jul-20-19  torrefan: One of my favorite games
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