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Fabiano Caruana vs Teimour Radjabov
Gashimov Memorial (2016), Shamkir AZE, rd 5, May-30
Sicilian Defense: Nezhmetdinov-Rossolimo Attack. Fianchetto Variation (B31)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
May-31-16  AlicesKnight: Agree with the above. I love the way the Qs stare at each other through the Black c5 pawn from move 13 until move 28, when Black 'blinks first', giving up the Q-side push. The stymying effect of Whites QNP on the Black attack is remarkable and when it is captured it sets White's finale up.
May-31-16  LeyenChess64: 36-Ne8! Daaamnt!
Jun-01-16
Premium Chessgames Member
  whiteshark: If <34... Qxe6> White can mate in 11 moves: 35. Nxh7 Qe7 36. Nf6+ Bh7 37. Nxh7 Kg8 38. Nf6+ Kf8 39. Nd7+ Kg8 40. Rhg1 Kf7 41. Rxg7+ Ke8 42. Rg8+ Kf7 43. R1g7+ Ke6 44. Qe5+ Kxd7 45. Rxe7#>
Jun-01-16  Ulhumbrus: One justification for White's choice of queen side castling by 10 0-0-0 is that White's queen side pawns are intact whereas Black has disturbed his king side pawns by ...g6. This could be a brilliantly original idea on the part of Caruana, or a strategic innovation.
Jan-19-17
Premium Chessgames Member
  drollere: well, radjabov helped out here.

34. e6 Bxe6 is pedestrian

35. Rxg7 Qxg7
36. Rxh7+ Qxh7
37. Nxh7 Kxh7
38. Qe4+ any
39. Qxe6

Jan-19-17
Premium Chessgames Member
  An Englishman: Good Evening: Have seen enough 3.Bb5(+) Sicilians to appreciate why Nezhmetdinov (the Soviet Rossolimo) and Rossolimo (the American Nezhmetdinov) were so fond of variations that usually require surrendering the Two Bishops. These lines seem unusually conducive to brilliancy prize games.
Jan-19-17  diagonalley: fantastic finish... worthy of a grandmaster
Jan-19-17  kb2ct:

Difficult to find queen sac, but once learned it is a nice addition to one's repetoire.

Jan-19-17  YouRang: Thursday 34.?


click for larger view

We have a complicated position that features:

(1) five pieces on the diagonal from d4 to e8, with the white queen on e4 and the black king on h8.

(2) The Ph7 is a hot spot, attacked twice (Nf6 and Rh1) and defended thrice (K, Rg7, and Bf5).

(3) Then black's Rg7 is attacked by Rg4 and defended by black's Q, white the Rg4 itself is attacked by black's Bf5.

It seems beneficial for white to remove pieces along that diagonal between queen and king, but which? The knight is useful where it is because it adds to the attack on Ph7.

So, it makes sense to try <34.e6>


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With this, white has begun to clear that diagonal in addition to attacking the black queen.

- Black can't take the pawn with 34...Bxe6 since that removes a defender of Ph7, allowing 35.Nxh7! (note that the K is the only remaining defenders of Ph7 since vacating removing the N pins the Rg7).

- Black can't take the pawn with <34...Qxe6> since that allows <35.Rxg7 Kxg7 36.Nxh7+>


click for larger view

The black K is under brutal attack, e.g. 36...Kf7? 37.Ng5+ forking K+Q; 36...Kg6 37.Rg1+ Kxh7? 38.Qg7#

- Black's best may be <34...Qe7 35.Rxg7 Qxg7 36.e7>


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White threatens to promote the e-pawn, and I figured that <36...Qxe7> may be met by <37.Rgh4>


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But this was where I messed up. :-(

I thought this was crushing (e.g. Rxh7+ ...Bxh7 Nxh7 with Nf6+ next). What I overlooked: <37...Qa7!> gets black out of trouble.

Checking with the computer, 34...Qe7 is best met by 35.Rxg7 Qxg7 36.Qe5 Bg6 37.Rg1

Jan-19-17  mel gibson: I saw the first move but not the rest.

The computer makes the first move the same
but it doesn't lead to a quick mate:

34. e6 (34. e6 (e5-e6 ♕f7-e7 ♖g4xg7 ♕e7xg7 ♕d4-e5 ♗f5-g6 ♖h1-g1 c6-c5 e6-e7 ♖a8-c8 ♖g1-g5 c5-c4 e7-e8♕+ ♖c8xe8 ♘f6xe8 ♕g7xe5 ♖g5xe5 c4xd3 ♔b1-c1 h7-h5 ♘e8-d6 d3xc2 ♖e5xb5 ♔h8-g7 ♖b5xb4 ♔g7-f6 ♘d6-e4+ ♔f6-e5 ♘e4-d2 ♗g6-f7 ♖b4-h4) +4.31/20 82)

Score +4.31 depth 20.

Jan-19-17  saturn2: 36 Ne8 is a nice move.
Jan-19-17  Robert Samuels: What I admired most were the pawn advances 22.h4! and 23.h5! apparently giving up two pawns, but actually preparing the decisive invasion of the kingside, plonking the knight on f6. That vision at move 21 is what sets up the brilliancy that ends the game fifteen moves later.
Jan-19-17  WorstPlayerEver: 15...e6 causes horrible weaknesses, 15...Nd7=
Jan-19-17
Premium Chessgames Member
  whiteshark: I vividly could remember the #11

;)

Jan-19-17
Premium Chessgames Member
  Jimfromprovidence: Like <YouRang> I also looked at the sequence 34 e6 Qe7 35 Rxg7 Qxg7 36 Qe5.


click for larger view

36 Qe5 is really nic as it protects the knight, attacks the bishop and gets away from ...c5.

Compare this sequence to 34 e6 Qe7 35 Rxg7 Qxg7 36 Rg1.


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Here black plays 36...c5.


click for larger view

White cannot try 37 Qe5 next because of the mate in two beginning with 37...Qxg1+. So he has to exchange queens with 37 Rxg7 cxd4.

Jan-19-17  stst: Interesting, feel somehow Black's Q will suffer. White's direct strike Rxh7+ is too much. The P@e5 is good initiator (from last night's notes, now I see no diagram):

34.e6...... (A)Bxe6
35.Rxg7 (at least R for R) ... (A1):
....Kxg7
36.Rxh7+ Kf8
37.Qd6+ Qe7
38.QxQ#
(A2)...... Qxg7
36.Rxh7+ Qxh7
37.NxQ dis+ KxN
38.Qe4+ forks K&R

(B)line:
34........ Qxe6
35.Rxg7 Kxg7
36.Rxh7+ Kg6
37.Qg1+ KxN
38.Rh6+ forks K&Q

(C)line: --- ignoring the P
34..........Qe7
35.Rxg7 KxR
36.QxR similar as before, Q will be lost.

Jan-19-17  stst: A slip of my "pen," for my (C)line, the last bit should read: (Either) KxR or QxR, the Q (Black's Q) will be lost.
Jan-19-17  saturn2: I am surprised that some long analysis is given here on the move 36 e6 but it ignores the for me most obvious answer 36...RxRg4 which was also played in the game. I for myself considered the moves 36 e6 and 36 RxRg7 as puzzle solution.
Jan-19-17
Premium Chessgames Member
  agb2002: Too recent perhaps.
Jan-19-17  ChessHigherCat: I saw the potential of e6 but as soon as noticed the N on f6 I thought: Aha, the Arabian Mate and got hung up on combining the two ideas. Unfortunately the B on f5 keeps getting in the way, so that turned out to be a red herring. Ne8 was extremely clever and counterintuitive, at least for me, because ever since GM Jacov Murey showed me one of his games where he sacrificed two rooks just to get a knight to f6 I have considered the Arabian Mate to be the be-all and end-all (especially the latter) of human existence.
Jan-19-17  NBZ: Let's see - e6!

A] Bxe6 Rxg7 Qxg7 Rxh7+ Qxh7 Nxh7+ Kxh7 Qe4+ winning the bishop and the game. Maybe there is a better line here instead of Rxh7+ but this is definitely winning.

B] Qxe6 Ne8! and there is no good defence to Qxg7#.

Jan-19-17  morfishine: <34.Rxg7> is simplest
Jan-19-17  carlomix: In this finish, Caruana seems somewhat like Capablanca..
Jan-19-17
Premium Chessgames Member
  drollere: <So he has to exchange queens with 37 Rxg7 cxd4.>

and white still clearly wins.

Jan-20-17
Premium Chessgames Member
  patzer2: For yesterday's Thursday solution I went for 34. Rxg7, which wins after 34...Qxg7 (34... Kxg7 35. Nh5+ Kf8 36. e6 Qxe6 37. Qg7+ Ke8 38. Qh8+ Kd7 39. Qxa8 ) 35. e6 Rg8 36. Kc1 Bxe6 37. Nxh7 Qxd4 38. Ng5+ Bh3 39. Rxh3+ Kg7 40. Ne6+ Kf7 41. Nxd4 (+2.71 @ 22 depth, Deep Fritz 15).

However, much stronger is the game continuation <34. e6 Rxg4>

[34... Qxe6 35. Nxh7 Qe7 (35... Bxh7 36. Qxg7#) 36. Nf6+ Rh7 37. Nxh7+ Qg7 38. Qxg7#;

34... Bxe6 35. Rxh7+ Rxh7 36. Nxh7+ Kxh7 37. Qe4+ Kh6 38. Qe3+ Kh7 39. Qh3+ Qh5 40. Qxh5#]

<35. exf7 Rxd4 36. Ne8 1-0>

Black resigns in lieu 36...Rxe8 37. fxe8=Q+ Kg7 38. Qe5+ with mate soon to follow.

Black's game took a significant turn for the worse with 16...a3? allowing 17. b4 (+0.88 @ 32 depth, Komodo 10).

Instead, 16...b4 = to (+0.15 @ 20 depth, Deep Fritz 15) appears to give Black reasonably good counter chances.

Earlier I prefer 15...Nd7 = and 8...Nh5 = as in R Moll vs A Nickel, 2007.

P.S.: The combination from 34. e6! to the game's final move neatly combines the deflection, clearance, and passed pawn tactical themes.

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