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Alexander Kalantar vs Tigran Vartanovich Petrosian
Erevan (1946), It
Old Indian Defense: Ukrainian Variation (A54)  ·  0-1
ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Feb-07-03  pawntificator: White doesn't have enough backup, so even with the black king so exposed it doesn't come to much. Also black could play 24 fxg6 Nxg6
Feb-07-03  drukenknight: Simply because you are suggesting two alternate moves for the 24th, makes me think I am onto something.
Feb-07-03  ughaibu: Well after gh7 Kh8 white has nothing and he's a rook down with his king even more exposed.
Feb-07-03  drukenknight: HOw is white down a Rook after he recaptures w/ cxd5? how does white have nothing? Arent the respective Kings in entirely different positions vis a vis one another? One of them has no pawn protection. But this is nothing.
Feb-07-03  ughaibu: He's down the exchange one doubled and two isolated pawns equals a rook by Druken-count, no?
Feb-07-03  drukenknight: theres just something that doesnt look right about retreating the R, what about 24 Nxd6?
Feb-07-03  ughaibu: And what happens after pawn takes?
Feb-07-03  Bears092: The computer likes Nac3, and doesn't recommend that white move the rook nor, black capture it, for quite a while.

DrunkenKnight - Nxd5 looks better than grabbing the Knight, but black is going down anyway.

Feb-07-03  ughaibu: Bears092: If your computer is suggesting that white's winning it confirms the view that computers haven't a clue.
Feb-07-03  Bears092: It says the Nac3 is still losing, but the best of the lot.
Feb-07-03  drukenknight: Bears you mean that white is "going down." Right?

Where does the computer think Kalanter went astray? Hmm what about 21 Bxd6? is that an improvement.

Feb-07-03  Bears092: yeah... iron Tigran is winning all the way....

after some deep thought, it thinks the Bxd6 is slightly worse than Nac3, but both are around the same (-.2).

21. exf5 gets a (-1)

Feb-07-03  drukenknight: what if starts 21 Nxd6 in order to recapture on e4 w/ the N?
Sep-24-05  aw1988: This is not the correct way of the Old Indian. I much prefer Polugaevsky's fianchetto of the queenside bishop.
Sep-24-05  IT4LICO: Why the variant is called Old Indian, Ukrainian Variation, 4.Nf3 (A54)? Where is 4.Nf3?...
Jul-01-07  get Reti: Petrosian has such weird, deep plans. At first, I didn't understand 17...Qc8 at all. Then after b6, Qb7, and f5, it becomes apparent that black is planning to attack white's king. I wonder how Petrosian would have done against a computer...
Feb-02-08  lentil: I love the final mate: 28 Nxf3? Nf2+ 29 Kh4 Nxf5# 2 knights kill the king!
Feb-08-08  Nezhmetdinov: 29. ...Bf6 is the mate.
Feb-08-08  Oginschile: Looks like 29... Bf6 30. Ng5 Nxf5# is the mate? Am i missing something?
Aug-29-08  arsen387: Another tactical brilliancy by 17 year old Tigran. After 21..Nxf3 if white takes the N then the line goes 22.Rxf3 Ne5 and any move to defend the R (Rf1 or Qf4) loses to 23..Nxf3 24.RxR (or QxR) Re2+!

In the end if 28.Nxf3? then the mate is 28..Nf2+ 29.Kh4 Bf6! 30.Ng5 Nxf5# as <Oginschile> already mentioned

Aug-29-08  CapablancaFan: Notice how Petrosian never even considered 26...Nxd1 winning the exchange, as that move wasn't even in the playbook of Petrosian's grandiose scheme. This is the kind of chess that separates masters from grandmasters!
Sep-26-10  sevenseaman: A very good Petrosian game! <Feb-08-08 Oginschile> You got it spot on.
Feb-29-12  screwdriver: Black can take the queen with Knight X f3, but then Knight f2 check. White's king has to go to h4, as that's the only choice. Now, Rook e4 check by black allows white to move his king to g5 or to move his pawn to g4. Either way, black mates with rook to g4. I love how crisp and definate all of Petrosians' moves were. All high grade with a strong plan backing them. It's amazing that play like this was actually around in 1946.
Dec-02-15
Premium Chessgames Member
  yiotta: How much did Petrosian calculate and how much was intuition? Thomas Engqvist:"20...f5! The right moment for this natural pawn break, but it requires calculation:21.Bxd6!fxe4!(this intermediate move is the key one to foresee; after 21...cxd6?! 22.Nxd6 Qc6 23.Nxe8 Rxe8 the position is roughly equal) 22.Nac7 exf3+ 23.Kg1 f2+ 24.Rxf2 (after 24.Kxf2? Bh6! Black wins material)24...Nf3+ 25.Kg2!(25.Kf1? Bd4!)25...Ng5+ 26.Rd5 Ne4 27.Nxa8 Qxa8 and Black's position is to be preferred. In the game a weaker move was played. 21.exf5?"
Jun-23-16
Premium Chessgames Member
  plang: 10..Bh3 was a clear improvement over 10..Bg4 which had been played in a game a few years earlier. 14 Ba3?! left the bishop on a poor diagonal and vulnerable to boot; 14 Bb2 was more logical.
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