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Peter Leko vs Magnus Carlsen
Tal Memorial (2009), Moscow RUS, rd 9, Nov-14
Sicilian Defense: Najdorf Variation. English Attack Anti-English (B90)  ·  0-1

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 5 OF 5 ·  Later Kibitzing>
Nov-14-09  TheSlid: Looking at the position at W's 50th move (as per the useful diagram provided by the helpful <zarg> on page 1), we see the "book" situation of RP, BP and R vs R. This can be drawn, but the drawing Tabiya, as I remember it, has (in this case) the White King on g2 and the White Rook optimally on a8.

Presumably the 2 factors re optimal K and R positions of the defender here are sufficient to make the difficult defense impossible against best play.

Interesting ending, no doubt Leko was aiming for this in general terms, if not in concrete ones, during the transition to the tablebase ending.

Nov-14-09  YouRang: I think that the status of this game switched from 'draw' to 'black win' with 26.Kd1?. The king made itself useless defensively, and shortly after black swept off the queenside pawns.

Better, was 36.Rb7, which appears to keep the draw.

Nov-14-09  whatthefat: <Ulhumbrus>

I thought that White should be able to handle things with 36.Bg3. You're right though, probably Leko overestimated the danger of Black's h-pawn.

Nov-14-09  Marmot PFL: Black could also reach a winning bishop ending with 46..Rxe2 47 Kxe2 h3, but maybe Magnus has not studied minor piece endings yet. Rook endings are more common so it makes sense to know them better.
Nov-14-09  Ulhumbrus: <YouRang: I think that the status of this game switched from 'draw' to 'black win' with 26.Kd1?. The king made itself useless defensively, and shortly after black swept off the queenside pawns. Better, was 36.Rb7, which appears to keep the draw.> On 36 Rb7 Bf6 37 Rxb5 h4 38 Bc7 h3! the pawn teaches h2 and Black wins White's bishop.

<whatthefat> may be right to say that Leko probably underestimated the strength of Black's passed h pawn.He may have seen too late the threat posed by Black's h pawn.

Nov-14-09  YouRang: <Ulhumbrus: <YouRang: I think that the status of this game switched from 'draw' to 'black win' with 26.Kd1?. The king made itself useless defensively, and shortly after black swept off the queenside pawns. Better, was 36.Rb7, which appears to keep the draw.>

On 36 Rb7 Bf6 37 Rxb5 h4 38 Bc7 h3! the pawn teaches h2 and Black wins White's bishop.>

True, after <36.Rb7 Bf6>, black can't take the b-pawn as you say.

However, <37.Rb6!> pins the bishop, preventing ...h4. Black can unpin with <37...Kf7>, but then <38.Rxb5 h4 39.Bxh4 Bxh4 40.Rxf5+> [diagram]


click for larger view

White still loses the bishop, but has 3 pawns to compensate, which I suspect is drawable for white.

BTW, if black might try to unpin while guarding Pf5 with 37...Kg5. But then we have 38.Rxb5 h4 39.Bxh4+! anyway.

Nov-14-09  whatthefat: <Ulhumbrus: <whatthefat> may be right to say that Leko probably underestimated the strength of Black's passed h pawn.He may have seen too late the threat posed by Black's h pawn.>

What I mean is that I don't think the Black h-pawn did pose much of a threat at that point. I think 33.Bb8 was a mistake.

Nov-14-09
Premium Chessgames Member
  Eyal: <Black could also reach a winning bishop ending with 46..Rxe2 47 Kxe2 h3, but maybe Magnus has not studied minor piece endings yet. Rook endings are more common so it makes sense to know them better.>

Carlsen has already played some impressive bishop endgames in his career as well (e.g. Carlsen vs Y Pelletier, 2008), but maybe he chose this specific rook endgame to please his coach...

<We were watching the R+2 vs R to the finish while talking on Skype. Garry was very happy not just for Magnus's second win, which gave him a share of second with Ivanchuk, but because "I said he should study these endgames and it looks like he actually did!"> (http://www.chessninja.com/dailydirt...)

Nov-14-09  Ulhumbrus: <YouRang> My idea was to ignore the threat of Be5 after Rb6 and to advance the h pawn, but it comes too late eg 36 Rb7 Bf6 37 Rb6 h4 38 Be5 h3 39 Rxf6+ Kg5 40 Rf8 and the B covers the point h2. However Black may be able to do better. 36 Rb7 and now 36...Bh6+ 37 Kd1 f4 traps White's B. On 38 Rb6+ Kg7 39 Rb7+ Kg8 40 Rb8+ Kf7 the black King marches towards the Queen side and White runs out of checks. On 36 Rb7 Bh6+ 37 Kd1 f4 38 Rb6+ Kg7 39 Rxh6 Kxh6 40 Bxf4+ Kg6 Black's h pawn remains. One interesting variation is 36 Rb7 Bh6+ 37 Kd1 f4 38 Rb6+ Kg7 39 Rb8+ Kg8 40 Rb8+ Kf7 41 Rh8 Bg7 42 Rxh5 fxg3 43 Rg5 gxf2! 44 Rf5+ Ke6 45 Rf3 Bf6 46 Ke2 Bh4 defending the f pawn and winning.
Nov-14-09  jmboutiere: 8.Bh4 + 0.00; 8.Bc1 +0.05
11.Qf3 + 0.31
15...g4 + 0.59
16.Qd3 + 0.59; 16.hg4 + 0.37
17...Be6 + 0.78
24.c3 + 0.56; 24.Bg4 + 0.32
28...Rc4 + 0.16
33.Bb8 - 0.28
35...Bf6 - 1.61; 35...h5 - 0.20
38...h4 - 2.57
43...Rc4 - 3.51
Nov-14-09
Premium Chessgames Member
  OhioChessFan: <According to Rybka aquarium on Chessok site, 38.Re3 precipitated the large black advantage in the game...wonder what Leko was thinking with that move. >

I think Rb6 must be too obvious. I'll run it by Fritz.

Nov-15-09  Johnny O: 6...Ng4 is playable again.
Nov-15-09  TugasKamagong: Carlsen's been on the other side of this ending: Carlsen vs Aronian, 2004
Nov-15-09  achieve: <TugasKamagong: Carlsen's been on the other side of this ending: Carlsen vs Aronian, 2004> Great find!

And it relates to Kasparov's <because "I said he should study these endgames and it looks like he actually did!"> (from: link provided by <Eyal> a few posts up.)

I have no reasonable doubt that Magnus Carlsen remembered this ending, perhaps even alerted to it by Garri, and indeed "had done the work."

The speed and accuracy with which he floored Leko was certainly eye-catching. No fluke; but SKILL.

Nov-15-09  znsprdx: <whatthefat: It took me a while to get my head around the logic of 33.Bb8 > well that potential Bishop trap swindle probably came as a shock- as the denouement of its psychological precursor, the bizarre Kh7. I played it out to a 54 move draw ( beyond 36.Re1 ) but it was pretty tough going. I think Leko blew it on move 18.e5 perhaps Nd5 is more accurate. I certainly did not understand 21.Rx[N]e4 surely the natural Bishop recapture is more to the point. Carlsen won the psych-out battle fairly and squarely.
Nov-16-09  ILoveCrazyhouse: I don't analyse with an engine, and I am not a grandmaster, but all of your analysis is ridiculous with the variation after 33. Rxe7. I think 33.Rxe7 is winning. 33..f4 and then what everyone seems to be missing

34. Re4.

Nov-16-09
Premium Chessgames Member
  Eyal: <ILoveCrazyhouse: all of your analysis is ridiculous with the variation after 33. Rxe7. I think 33.Rxe7 is winning. 33..f4 and then what everyone seems to be missing

34. Re4.>


click for larger view

And here is what you seem to be missing: 34...h5! breaking the pin on the 4th rank by defending the rook, and creating the possibility of a pin along the c1-h6 diagonal if White captures on f4 (35.Rxf4 Bh6 or 35.Bxf4 Rxf4 36.Rxf4 Bh6).

Nov-16-09  TylerD: All this computertalk is so boring and lame, it makes you want to quit chess altogether.

Actually, I think I will.

Nov-16-09  znsprdx: <TylerD:> As someone who "quit chess" a long time ago may I suggest that Chess, like any obsession or addiction might not be finished with you :)

I certainly agree that posting computer analysis during a live game is totally ridiculous but it is fascinating at times to see that the SGM's often play the cyber move - but even more interesting how they vary the move order.

I think the best use for computers would be to reduce the number of draws by agreement - those pathetic displays often under 20 moves. Let the computers decide the outcome!

What I find difficult to grasp is that here is some chess 'gestalt' - some intrinsic comprehension of how chess works that can be grasped by so few - and more incredibly by this new wave of GM's under 18 - probably due to computer access. Today you could study hundreds of games a week compared to only dozens only 3 decades ago.

In the meantime have fun with this problem. Imagine you have only seconds on the clock: white to move and mate in 3. As long as there are intriguing puzzle-like possibilities you will stay hooked on Chess. I guarantee it.

<6k1/16/2P1QK1B/32> Oops this is the original concise FEN

<


click for larger view

>

Nov-17-09
Premium Chessgames Member
  FSR: Pretty impressive: when Carlsen is sick, he still scores an undefeated +2 against world-class opposition, finishes a half-point out of first, gains rating points, and becomes the highest-rated player in the world. Imagine what he'll do when he's well.
Nov-17-09  Xaurus: <Imagine what he'll do when he's well>

Nanjing, anyone? :)

Nov-17-09
Premium Chessgames Member
  FSR: Yes. There will likely be other Nanjings, and probably even greater results, in Carlsen's career.
Nov-20-09  Raulone: Nobody told about: 33. Rxe4 f4 34. Bh2 Rh4 35. Bg1 Rg4 36. g3 fxg3 37. fxg3 Rxg3 38. Bd4 Is a better position for White (is a draw actually) than 33. Bb8
Jun-12-16  cormier:


click for larger view

Analysis by Houdini d 28

1. = (-0.18): 36.Rb7 f4 37.Bxf4 h4 38.Rb6+ Kf5 39.Bc7 Rxf2 40.Rxb5+ Kg6 41.c4 h3 42.Kd1 Bxb2 43.Rb3 h2 44.Rh3 Rf1+ 45.Kc2 h1Q 46.Rxh1 Rxh1 47.Kxb2 Rh3 48.c5 Kf5 49.Ba5 Ke6 50.c6 Kd6 51.c7 Kd7 52.Kc2 Kc8 53.Kd2 Rf3 54.Bb6 Rg3 55.Bf2 Rh3 56.Bd4 Ra3 57.Bb2

2. = (-0.23): 36.Re6+ Kg5 37.Re7 Bf6 38.Re6 f4 39.Bxf4+ Kf5 40.Rb6 h4 41.Bc7 Bg5+ 42.Kd1 Rxf2 43.Rxb5+ Kg4 44.Ke1 Rg2 45.Kf1 h3 46.Rb8 Rd2 47.Rb4+ Kf3 48.Kg1 h2+ 49.Kh1 Rd1+ 50.Kxh2 Rd7 51.Bb6 Bf4+ 52.Rxf4+ Kxf4 53.b4 Kf3 54.Bd4 Rd5 55.Kg1 Rh5 56.Kf1 Rh2 57.Ke1 Ke4 58.b5 Rb2 59.b6 Kd5 60.Kd1 Kc6 61.c4 Rg2 62.c5 Kb7 63.Bc3 Rh2 64.Bd4 Ra2 65.Bc3

3. (-0.29): 36.Rc7 f4 37.Bxf4 Rxf2 38.Rc6+ Kf5 39.Bg3 Rg2 40.Bh4 Rg4 41.Rc5+ Be5 42.Bf2 h4 43.Bxh4 Rxh4 44.Kc2 b4 45.cxb4 Rxb4 46.Kd3 Rxb2 47.Ra5 Rb4 48.Ra2 Rd4+ 49.Ke3 Re4+ 50.Kd3 Rb4 51.Rc2 Rd4+ 52.Ke3 Re4+ 53.Kd3 Rf4 54.Re2 Bf6 55.Rc2 Rd4+ 56.Ke3 Re4+ 57.Kd3

Jun-12-16  cormier:


click for larger view

Analysis by Houdini d 30

1. = (-0.03): 33.Rxe7 f4 34.Re4 h5 35.Bxf4 Rxf4 36.Rxf4 Bh6 37.Kc2 Bxf4 38.c4 bxc4 39.Kc3 Bc7 40.Kxc4 Bb6 41.Kd3 Bxf2 42.Ke2 Ba7 43.Kf3 h4 44.g4 Kg6 45.Kg2 Kg5 46.b3 Kxg4 47.Kh2 h3 48.b4 Bb8+ 49.Kg1 Bg3 50.b5 Bb8 51.b6 Be5 52.b7 Bb8 53.Kh1 Kg5 54.Kg1 Ba7+ 55.Kh2 Kg4 56.Kh1 Bb8 57.Kg1 h2+ 58.Kh1 Bd6

2. (-0.27): 33.Bb8 Rxg2 34.Rxe7 Rxf2 35.Be5 Rg2 36.b4 f4 37.Bxf4 Kg6 38.Rb7 Bxc3 39.Rxb5 h5 40.Bd6 h4 41.Rd5 Kf7 42.b5 Ke6 43.Rd3 Ba5 44.Kd1 h3 45.Bf4 Kf5 46.Rxh3 Kxf4 47.Rh6 Rb2 48.b6 Bxb6 49.Kc1 Rb5 50.Kc2 Bd4 51.Kd3 Bg7 52.Rh4+ Kf3 53.Kc4 Rb1 54.Rh5 Rc1+ 55.Kb5 Kg4 56.Rd5

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