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Tigran L Petrosian vs Pavel Smirnov
Aeroflot Open (2006), Moscow RUS, rd 5, Feb-12
Sicilian Defense: Najdorf Variation. English Attack (B90)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Given 41 times; par: 23 [what's this?]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 3 ·  Later Kibitzing>
Jul-14-07  Alphastar: Baah, I considered 24. Bxh7+ and 24. Rxa5 among other moves but I never looked at the double sac. Oh well, you always learn from your mistakes.
Jul-14-07  vibes43: I spent so much time looking at 24. Bxh7+ my head was spinning. I should have given more credence to the fact that black Q was overworked as several have pointed out although I never would have seen the winning line anyway.
Jul-14-07  derekchessgames: If Black plays 27...Qc7 instead of Qb5, how will White win?
Jul-14-07  jmrulez2004: Yes..this week's candidate move is really easy...but the shock factor here is how on earth white was gonna deliver mate:DDDDD..Rxf7 took me by surprise!!
Jul-14-07  4i4mitko: I was thinking first Bxh7 and then Rxa5
Jul-14-07
Premium Chessgames Member
  pittpanther: I saw this sequence but with a different finish. On 27 I was going to play 27 Nd7+. If 27 ... Rxd7 then play 28. Bc5+, if black interposes on e7 then Qxf7 is mate, otherwise black must play Qxc5 and lose his queen. However, white only has a Q vs. R + B advantage - likely enough to win but not as forcing as the game. Also, in response to <derekchessgames> question about if black plays 27...Qc7 white uses the Nd7 approach to win the game.
Jul-14-07  Dr. Funkenstein: I'm curious what counts as a correct solution for this one. I saw the first several moves, Rxa5 to deflect the queen to allow Bxh7+ and then Qxd5. But I was totally blown away by the Coupe de Gracie (to quote Daffy Duck)Rxf7+ a few moves later.
Jul-14-07  black knight c6: I have two questions:
A)Why are 27. b4, 28. c4 necessary? I know after Qxc4 the knight now can use check and discovered attack on the black queen with whites, but can't white immediately go 27. Qd6? Or does he somehow need this as part of his plan? Also can black respond better to b4 and c4 so his queen doesn't get trapped? B) What if 29. ... Rae7? Then the later Qd4 check can be blocked by three pieces on e6. How does white proceed now?
Jul-14-07  derekchessgames: <pittpanther> Thanks for the solution. 27...Qc7 will be met by Nd7+ and Bc5+. Nice!
Jul-14-07  DexterGordon: <black knight c6>, I wondered about b4 and c4 as well. Why is it better to lure the Black queen to b4 rather than leaving her at a5?

Far as I can see the same sequence works with her on a5: 27. Qd6+ Be7 Rxf7+ Kxf7 Qd5+ Kf6 Bd4#.

Jul-14-07  DexterGordon: Wait, I think your (B) has the answer to why White plays b4 and c4, <black knight c6>. With the Black queen on b4, if 29...Rae7, then Ne6+ wins the queen.
Jul-14-07  crazy monk: <That's a different Tigran?> Is he relates to the "original" Petrosian?
Jul-14-07  outplayer: What should I say? easy saturday ;-)
Jul-14-07  desiobu: I the right first couple of moves but I couldn't finish it. Really pretty finish.
Jul-14-07  noTALent: I considered both Bxh7+ and Rxa5 as my probable best moves, but didn't look at it long enough to get them in correct order. Might have gotten that far if I had the time... But the rest was filled with so many permutations...
Jul-14-07  melv: <black knight c6> 27 b4 deflects the Q from gaurding the bishop on d8 so now black cannot use the rook to interpose on e7. He has to us the bishop which then blocks the rook on a7 from gaurding f7.wow my head hurts
Jul-14-07  TrueBlue: Rxa5 and Bh7+ both give decisive advantage to white ...
Jul-14-07  bogo78: i've seen the first 3 moves but after that the picture become blurry, as there were too many variations to check. b4 and c5 ideas did not cross my mind, I guess i was probing waters way out of my calculation horizon.
Jul-14-07
Premium Chessgames Member
  Peligroso Patzer: <crazy monk: <That's a different Tigran?> Is he relate[d] to the "original" Petrosian?>

From the biography at: Tigran L Petrosian:

"Tigran Petrosian (no relation to the late World Champion Tigran Vartanovich Petrosian) was born in 1984 in Armenia."

Jul-14-07  TommyC: I got the basic idea quickly, but didn't attempt the details.

Btw, is this opening really "The English Attack"? I thought that normally involved Be3 w f3 and O-O-O (barring earlier deviations eg 6...Ng4) not f4 and O-O? Seems like its transposed out of it, if memory has served me alright.

Jul-14-07
Premium Chessgames Member
  fm avari viraf: I saw it differently 24.Bxh7+ Kxh7 25.Qh5+ Kg8 26.Rxa5 [Qxa5 is not playable because of 27.Qxf7+ ]so 26...g6 & 27.Qxd5. But the text moves were simply far away from my imagination
Jul-14-07
Premium Chessgames Member
  kevin86: Could we call this Tigran L Petrosian "The little Tiger"?

A great combination-but I wouldn't have found it in a thousand years.

Jul-14-07  Edeltalent: I got the exact same solution as <pittpanther> and would have had to work for the win.

Now to recap the situation after the better 27.b4: the black Queen has to...

... avoid the square b4 because after 28.Qd6+ Be7 is necessary, blocking the Ra7 from f7 and ending like the game

... avoid the seventh row, as this is blocking the Ra7 from d7, resulting in 28.Nd7+ followed by Bc5+

... keep an eye on c5 to prevent the same Nd7+/Bc5+ combination.

So the best choice seems to be the odd 27...Qb6, moving right into the range of the white Bishop. Does anyone have a decisive answer to this? I can't figure out anything better than a transformation to <pittpanther>'s aforementioned Q vs R&B variation.

Jul-14-07  MostlyAverageJoe: <fm avari viraf: I saw it differently 24.Bxh7+ Kxh7 25.Qh5+ Kg8 26.Rxa5>

While, as you said the rook on a5 is untouchable, black has this:

26 ... Re5! and white will lose one of the rooks, no matter what:


click for larger view

Black's choices are now: (1) give up the a5 rook, or (2) save it by losing an exchange on f7 and getting a pawn in the balance.

Jul-14-07  PAWNTOEFOUR: yeah,i know it's saturday and i should be resting up for monday's puzzle...but no, i had to try this.....white sacrificing this and that makes you wonder how is he going to get it done...but he did..nice puzzle
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