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Vladimir Kramnik vs Ernesto Inarkiev
Petrosian Memorial (2014), Moscow RUS, rd 2, Nov-05
Queen's Gambit Declined: Miles Variation (D53)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Nov-21-15  kubbybulin: My first thought was the rook sac. Nice, but I believe it is an obvious idea, and getting the first move alone, in this case, is not enough for even a half-point. I also got the bishop transfer idea and the rook lift via the f-file. The ordering in my line was quite different from the game though. I just couldn't see any strong defensive ideas for black. Anyway, here is my main line. Unless there are any objections I will take the half-point.

30. Rh6 gh6 31. Qh6 Kg8 32. Bf3 Qd7 33. Be4 f5 34.gf6 ep Ra7 35. Qg6 Kh8 36. f4 Qf7 37. Qh6 Kg8 38. Rf3 1-0

Nov-21-15  MindCtrol9: After 32.f4 Black is lost with practically anything.I think another way to win may me is with 33.g4-f5 to get a pawn on f6 and with the threat of the Rook,too.
Nov-21-15  MindCtrol9: Different plans,different ideas, and all of them have Black against the wall.
Nov-21-15  morfishine: While <30.Rxh6+> is more of a "puzzle-solving" move, due to his overwhelming positional superiority, white has a number of winning options
Nov-21-15
Premium Chessgames Member
  agb2002: White has the bishop pair for a bishop and a knight.

Black threatens Nd5 and to push the c-pawn.

The maneuver 30.Rxh6+ gxh6 31.Qxh6+ Kg8 32.Rd1 looks promising. For example, 32... f5 33.exf6 Ra7 34.Rd4 Rh7 35.f7+ Kxf7 (35... Rxf7 36.Rg4+ and mate in two; 35... Kh8 36.Be5+ Qf6 37.Bxf6#) 36.Qxh7+ Kf6 (36... Ke8 37.Bh5#) 37.Qh6+ Kf7 (37... Kf5 38.Rf4#) 38.Bh5+ Kg8 39.Rg4+ and mate next.

I don't have time for more today.

Nov-21-15
Premium Chessgames Member
  beatgiant: My solution was 30. Bf3, preparing the rook sac in even better conditions.

For example 30...Nd5 31. Rxh6+ gxh6 32. Qxh6+ Kg8 33. Be4 f5 32. exf6(e.p.) Ra7 33. Qg6+ Kh6 34. f7 Rxf7 35. Be5+ wins routinely.

Black might have to decline the rook with 30...Nd5 31. Rxh6+ Kg8 32. Qg3 and White's a pawn up with the better position. Even with the move Kramnik chose, it seems to me Black can decline the rook with a similar outcome.

Nov-21-15  wooden nickel: <You can't have your cake and eat it too> i.e. "You can't have your rook and sac it too!", after 30.Rxh6+ gxh6 31.Qxh6+ Kg8, good thing we have another one to go for the kingside attack via 32.d1... the text move 32.f4 surprised me.
Nov-21-15  Pinkerton: It took me to f4. But I shot it down. For entertainment? Sure! Yet Rd1 has more value. But I'm not going to tell the Vladimir Kramnik what to do.
Nov-21-15  dgm1214: Like f4!
Nov-21-15  tivrfoa: why 34. f5?
Nov-21-15
Premium Chessgames Member
  LucB: <why 34. f5?>

I was going to ask the same question; anybody care to enlighten us?

TIA!

Nov-21-15
Premium Chessgames Member
  Sally Simpson: 34.f5 brings the f1 Rook into the game.

Here White has just played 36.Bxc6


click for larger view

Black could not play 36...Qxc6 37.Rxf5 and how do you stop all the Queen and Rook mates that are now on the board.

Nov-21-15
Premium Chessgames Member
  Jimfromprovidence: <Sally Simpson> <34.f5 brings the f1 Rook into the game.>


click for larger view

Yes. The other part is that 34 f5 above forces 34...exf5, as white threatens 35 f6 with mate next move.

Nov-21-15  RandomVisitor: After the improvement 27...c3! black has a playable position and might escape with a draw


click for larger view

Komodo-9.2-64bit:

<+0.31/31 28.Bxb5 axb5 29.Rxg7 Qb7> 30.Bc5 Nc4 31.Rg4 Rg8 32.f3 Kh7 33.h3 Rg6 34.Rc1 Rxa3 35.Rxg6 fxg6 36.Qe1 Qd5 37.Rxc3 Ra2 38.Rc1 Qxe5 39.Qxe5 Nxe5 40.Re1 Nd3 41.Rxe6 Rxg2+ 42.Kxg2 Nf4+ 43.Kf2 Nxe6 44.Ke3 g5 45.Ke4 Kg6 46.Be3 h5 47.Ke5 Ng7 48.Bd4 Nf5 49.Bc5 h4 50.Kd5

+0.15/31 28.Rxg7 Rg8 29.Rxg8+ Qxg8 30.Qf3 Nd5 31.g3 Qg6 32.Rd1 Bxe2 33.Qxe2 a5 34.Rc1 Qg5 35.Qe1 axb4 36.Bxb4 Qg4 37.h3 Qf3 38.Qd1 Qe4 39.Qh5 Kg7 40.Qg4+ Qxg4 41.hxg4 Rc8 42.Kf1 Rc4 43.f3 Rd4 44.Bxc3 Rd3 45.Bb4 Rxf3+ 46.Kg2 Rd3 47.Bc5 Kg6 48.a4 Rd2+ 49.Kf3 Rd3+ 50.Ke2 Rc3 51.Rxc3

Nov-21-15
Premium Chessgames Member
  Jimfromprovidence: Great play by Kramnik. Too bad he did not see 36 Be4!, which wins on the spot.


click for larger view

It opens up the rook lift so black cannot afford to lose a tempo by taking with the bishop. Also taking with the pawn sets up 37 Rxf7 with a forced mate.

Nov-21-15
Premium Chessgames Member
  kevin86: The key move is obvious: black's king is fixed in the corner area and black's defenders are well away from the action. So white can take his time to align his forces.
Nov-21-15  devere: <yadasampati: <devere> I am not sure if 32. Rd1 is really that good. How about the following variation? 32. Rd1 Ra7 33. Rd4 f5 34. exf6 Rh7 35. Rg4+ Kh8>

35.f7+! forces checkmate.


click for larger view

Nov-21-15  BOSTER: < Sally: 34.f5 brings the f1 rook into the game>. Not so fast.
What if after 33.Bf3 black'd play 33...Nd5
Nov-21-15  Marmot PFL: The game line looked unclear so i would have tried 33 f5 and Rf4-g4+ or 33...ef 34 Rxf5-Rg5+
Nov-21-15  CHESSTTCAMPS: Material is even, with white having a big advantage of force directed towards the king-side. White's attack would appear to almost play itself after

30.Rxh6+! to be followed by a rook lift:

A.30... gxh6+ 31.Qxh6+ Kg8 32.f4 Bc6 (to stop Rf3) 33.f5 exf5 (f6 34.Qg6+ Kh8 35.exf6 Ra7 36.Be5! wins) 34.Rxf5 Ra7 (f6 35.Qg6+ forces mate) 35.Rg5+ Qxg5 36.Qxg5+ Kh7 (Kh8 37.Bf5 Rg7 38.Qf6+ wins) 37.Bf5 Rg7 38.Qf6 wins a minor piece

A.1 32... f5/f6 33.Qg6+ Kh8 34.Rf3 forces mate.

A.2 33... other 34.f6 wins

A.3 34... Re6 35.Rg5+ Rg6 36.Rxg6+ fxg6 37.Qxg6+ Kh8 38.Qh6+ Kg8 39.Bg4 Bd7 (otherwise 40.Be6#) 40.e6! Bxe6 41.Qg6+ Kh8 42.Be5+ forces mate

B.30... Kg8 31.Rh3 (Rf6? Nd5!) Bc6 (c3 32.Qe4! f5 33.ef e.p. Qxd6 34.Qh7+ forces mate) 32.Qg4 threatening Qh5 looks strong.

All I have time for. Time for review....

Nov-21-15  RandomVisitor: A final look at the improvement attempt 27...c3!

Komodo-9.2-64bit:

+0.11/36 28.Rxg7 Rg8 29.Rxg8+ Qxg8 30.Re1 Qxg3 31.hxg3 c2 32.Bxb5 axb5 33.Rc1 Rxa3 34.Rxc2 Nc4 35.g4 Kh7 36.f3 Rd3 37.Kf2 Kg6 38.Re2 f6 39.Rc2 f5 40.gxf5+ Kxf5 41.Ra2 Nxe5 42.Bc5 h5 43.Ra8 Ng6 44.Be3 Rb3 45.Bd2 Rb2 46.Ke3 e5 47.g3 h4 48.gxh4 Nxh4 49.Rf8+ Ke6 50.Re8+ Kf6 51.Ke2

+0.14/33 28.Bxb5 axb5 29.Rxg7 Qb7 30.Rg4 Rg8 31.Bc5 Nd5 32.Rxg8+ Rxg8 33.Qh3 Rg6 34.f4 Qa8 35.Qf3 Qg8 36.g3 Rg4 37.Kf2 Qg6 38.f5 Qh5 39.h3 Rg5 40.Qxh5 Rxh5 41.fxe6 Rf5+ 42.Ke2 Rxf1 43.e7 Nxe7 44.Kxf1 c2 45.Be3 Nf5 46.Bc1 Nd4 47.Bxh6 Kh7 48.Bd2 Kg6 49.g4 Nb3 50.Ke2 c1Q 51.Bxc1 Nxc1+ 52.Ke3

Nov-21-15  anandrulez: Rook sacrifice with the other rook lift idea is correct. However Rd1 looks stronger than f4-Rf3 as per stockfish. Anyway Kramnik's idea and intuition is superb.
Nov-21-15  PJs Studio: I was doing fine up until black didn't recapture on move 36... Then the wheels came off! Heavy piece mates are complex for me. It looked like Kramnik was stymied.

I've got a lot of work to do.

Nov-21-15
Premium Chessgames Member
  paulalbert: Rxh6ch followed by Qxh6ch following the capture fairly obvious way to start, but what next. I was trying Bf3 to threaten Be4 ( that idea appropriately came much later ). Totally missed considering f4 as way of getting Rf1 eventually into play. Saturday puzzles almost always definitely beyond my ability to work out correctly, even if I see some of the ideas.
Nov-21-15  The Kings Domain: Admirable combinative play by Kramnik.
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