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Marcelo Javier Tempone vs Tigran V Petrosian
Buenos Aires (Clarin) (1979), Buenos Aires ARG, rd 9, Dec-07
English Opening: Anglo-Indian Defense. King's Knight Variation (A15)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Mar-28-05
Premium Chessgames Member
  Benzol: An interesting encounter. White's next will be 63.♖1e7 and it appears that "The Tiger" can do nothing about it. Did he miss a win earlier, however?
Mar-28-05  aw1988: 55...b2 looks winning.
Mar-28-05  themindset: it definitely looks winning, but is not.

55...b2 56.e7+ Kg8 57.Rb7!!

I'm pretty sure Petrosian saw all that, otherwise he would have played b2 in a heartbeat.

Aug-19-07
Premium Chessgames Member
  Fusilli: <themindset: it definitely looks winning, but is not.

55...b2 56.e7+ Kg8 57.Rb7!!>

You are right. The other responses are:

56...Kf7 57.e8=Q+ Kxe8 58. fxg7 and black can't stop g8=Q+ and mate in two.

56...Ke8 57.fxg7 and the black King must go to f7 now, transposing to the line above but with a waste of a tempo.

56...Bxe7 57.fxe7+ Kf7 (57...Ke8 58.Rf1 and mate follows) 58.Rf1+ and 59.Rb7!

Aug-20-07
Premium Chessgames Member
  Fusilli: All this said... what if 56...b2? All I can see if 57.e7+ Kf7 58.Re1 Re8 and black wins, doesn't he?
Sep-06-08
Premium Chessgames Member
  vonKrolock: Excellent victory for Tempone - <Fusilli> 56...b2 really looks good - it was my move too :) - But maybe white's play can be improved: 57.e7+ etc is not the most promising line
Mar-12-13  kereru: 33...c4! was an excellent exchange sac by Petrosian, but he didn't get his pawns rolling fast enough and gave white too much counterplay. The engines want to play 35...c3 which looks like it wins back the material with interest but I'm not sure that it wins outright. Tempone did very well to find 46.Ne5!, which turns the game into an all-out tactical melee.

56...b2 is certainly interesting, if 57.Re1! black doesn't have time to play 57...b1Q 58.Rxb1 Nxb1 59.Kxd6 Nxd2 60.Rf7+ Kg8 61.Kc7! , but 57...Nb5 might be ok.

Apr-14-18
Premium Chessgames Member
  Gregor Samsa Mendel: The Computer thinks that black could have won after 51..b4. Definitely not easy to spot over-the-board.

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Buenos Aires (Clarin) 1979
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