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Baadur Jobava vs Holden Hernandez Carmenates
Casino de Barcelona (2008), ?, rd 2, Oct-31
Sicilian Defense: Najdorf Variation (B96)  ·  1-0

ANALYSIS [x]

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Given 10 times; par: 39 [what's this?]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 1 OF 2 ·  Later Kibitzing>
Nov-06-08  luzhin: White's series of calm non-forcing moves when a full piece down (24.h5,25.h6,26.Kb1)show admirable sang-froid.
Nov-06-08  safar: How does White win after say 33.Rd7? I think White's attack is spent and Black can hide his King on the Q side.
Nov-06-08  narenillo: <safar: How does White win after say 33.Rd7? I think White's attack is spent and Black can hide his King on the Q side.> This leaves the Black Queen en prise (33 ... Rd7 34. Qxc6)
Nov-07-08  noviant: What if Black play 34....Kc8, White can't take Be7. If 35.h7 then Black can play Qf6 (try to exchange Q and guarding h8).
Nov-07-08  luzhin: Noviant is right that 34...Kc8 would have answered all the threats. However White had just blundered with 34.Qg7? when instead 34.Be6! would have won.
Jul-27-09  totololo: The main question is prepared or unprepared? Tal did it on the spot ... I read his analysis in EE>
Dec-07-10  VincentL: "Easy"

34. Qxf8+ Bxf8 (forced) 35. Re8 mate.

Simple today.

Dec-07-10
Premium Chessgames Member
  Phony Benoni: Kind of like Nimzowitsch vs Alapin, 1914, with another pin thrown in for good measure.
Dec-07-10  lost in space: 35. Qxf8! Bxf8 (only move) 36. Re8#

Nice utilization of the pin on the d-file. It took a while to see it (a lot of pieces around the black king and so a lot of options)

Dec-07-10  Formula7: 35.Qxf8+ Bxf8 36.Re8#
Dec-07-10  TheBish: Jobava vs H Hernandez, 2008

White to play (35.?) "Easy"

It took me a little while longer to find this than if it had said "Mate in 2." A little longer than if I had thought "I bet it's a queen sac"!

35. Qxf8+! Bxf8 36. Re8#.

Definitely a Tuesday problem, but you had to consider the queen sac and take advantage of the pin on the d-file as well.

Dec-07-10  patzer2: For today's Tuesday puzzle solution, 35. Qxf8+! Bxf8 36. Re8# combines the decoy, deflection, pin and clearance tactics to force a quick mate-in-two.
Dec-07-10  estrick: Yes!! Another sack the queen day!
Dec-07-10  knight knight: Wow, black's position is so crazily bad it looks like a problem composition!

There must be several winning moves here, I see 35. Qxf8+ Bxf8 36. Re8# which does the job very nicely.

Dec-07-10  dzechiel: White to move (35?). White has two pawns for a bishop. "Easy."

Saw this one in a trice. White effects a mate-in-two starting with...

35 Qxf8+ Bxf8

The only legal move.

36 Re8#

Makes me want to play though the entire game to see how we got here.

Dec-07-10
Premium Chessgames Member
  An Englishman: Good Evening: Fine little two-mover, but that Knight sacrifice on move 12, no matter how often we see it in the Najdorf Sicilian, never ceases to amaze me. It seems more like an act of magic than chess.
Dec-07-10  gars: Well, I love Mondays too!
Dec-07-10  scormus: An easy, attractive 2 mover but I feel slightly disappointed that the puzzle ending is so tame. Such a game deserves something richer, nespar?

<Fred F> is right, I think. 34 Be6 looks like the move (stops ... Kc8)but I dont see an easy win if B plays ... b3. Pity it didnt go that way. And IMO a pity CG didnt save it for a weekend and give 34. W to play.

<Noviant> Yes, 34 Qg7 is a mistake and a shame after 20 moves of such controlled buildup. In my experience the Nd5 sac usually results in a trading of punches and TKO for one side or the othe. Interesting to see it played as a positional sac.

Dec-07-10  scormus: <An Englishman ... Nd5 vs. the Najdorf> Absolutely! probably my favourite move in all chess
Dec-07-10  muralman: It was the wall the Black King was stuck behind that got me looking for a trap. Sacrificing the Queen was the surest way.
Dec-07-10  M.Hassan: "Easy" White to play 35.?
Black is up by a Bishop for 2 pawns.
At first I thought taking the Bishop on e7 by the Rook works. It does work provided the King takes the Rook but if the Queen takes the exchange, mating progress stops. I then found the right move:

35.QxF8+ Bxf8 forced
36.Re8#
Bishop on d7 is pinned and can not take the Rook
I think it must be it.

Dec-07-10
Premium Chessgames Member
  Once: <An Englishman: Good Evening: Fine little two-mover, but that Knight sacrifice on move 12, no matter how often we see it in the Najdorf Sicilian, never ceases to amaze me. It seems more like an act of magic than chess.>

Well said! Here is the position just before 12. Nd5


click for larger view

White gives up a perfectly good piece, a whole three points of knightiness, and for what? An open e file. At first glance it looks baffling, a beginner's mistake.

But look a little closer and we see that black is going to have trouble getting his king to safety. The doubled f pawns make kingside castling riskier than usual, especially as white has castled queenside.

What is more, white gets the chance to double and then triple heavy pieces on the e file. This means that the black king has to stay in close attendance of the Be7 - otherwise he will give back the sacrificed piece and still have no safe home for his king.

Is all this worth a sacrificed knight? Fritzie doesn't think so. He grumbles and chunters in his gutteral germanic tones about slight advantages to black. Never a whole pawn, but it's still -0.3 to -0.6 for much of the game after the the knight sac.

But there's another point to 12. Nd5. It puts black on the defensive for a long long time. This is how the "conversation" goes...

White: 1. e4 "I'm a classical attacking player, best by test, a man's opening, a sweaty opening with tattoos."

Black: 1...c5. "Pah! Call that a man's opening? It's got lace ruffles at the cuff. Here's the counter-attacking sicilian and an invitation to a knife fight. I'll see your tuff-stickers and raise you a body piercing or two."

White: 12. Nd5. "Okay, let's see you defend against that one. Nowhere for your king to castle."

Black: 12...exd5 "I accept your challenge. I'm going to defend against your attack, neutralise it, then launch a queenside attack of my own. Eventually my extra piece will tell."

The problem for black is that he needs to keep finding accurate defending moves against the white attack. And that might be fine for a machine but for a human it's a thankless task. And under this kind of pressure, it is not surprising that black makes a series of mistakes - including the disastrous 32...d5 and 34...Qf6.

12. Nd5 is one of those moves that baffles many players because the transaction is so hard to judge. Knight for bishop, three points for three points - that's easy maths. But knight for open file, which may or may not lead to long-lasting pressure and a mate 23 moves later? That's not the sort of accounting that got the banks into deep financial trouble...

Dec-07-10
Premium Chessgames Member
  agb2002: White has a bishop and two pawns for the bishop pair.

Black threates 35... Qxf7.

The rook on d5 pins the bishop on d7, so that two pieces block the black king. If White could remove or divert the rook on f8 the bishop on e7 then Re8 would deliver mate. Hence, 35.Qxf8+ Bxf8 36.Re8#.

Dec-07-10  JohnBoy: <luzhin: White's series of calm non-forcing moves when a full piece down (24.h5,25.h6,26.Kb1)show admirable sang-froid.> That about sums up my feelings here as well. The solution is far less interesting than the game.
Dec-07-10  scormus: <Once> A nice perspective on Nd5 from a player who, by his own admission, eschews these sharp hairy-chested openings.

The first time I saw this move played, at that time it still wasnt well known at the sort of level we played, it was by a team mate against a rather strong player from another club. It probably wasnt excatly the same position as here - I think it went (B) ... b5 (W) Nd5 (B) exd5 (W) Nf5. Then B thought for a long time and said, "it looks like this is one lesson I'm going to learn the hard way."

I cant remember the moves but W won spectacularly and I decided more than anything else in chess ... I wanted to play a game against the Najdorf and win with that move.

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