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Tigran V Petrosian vs Borislav Ivkov
YUG-URS (1979), Teslic YUG, May-??
Queen's Gambit Declined: Semmering Variation (D30)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 4 OF 4 ·  Later Kibitzing>
Mar-07-07  MindlessOne: I liked everything except the bishop, so why not capture. Rxd4, does anyone think maybe chessgames needs to pick up the intensity of the daily problems?
Mar-07-07  Kings Indian: Strange, i got this faster than monday. Still nice.
Mar-07-07  CHEG: Brilliant!
Mar-07-07  Dr.Lecter: I think all the knight moves at the last 3 moves or so were aimed for this purpose.

<kingsindian> nice avatar.

Mar-07-07  soberknight: I kept on staring at the position and wondering, "This is not a puzzle position. All the material is protected and there is no mate."

I still have what to learn...

Mar-07-07  Pawnsgambit: Most easiest puzzle. I took less than 5 seconds to solve it
Mar-08-07  realbrob: Isn't 34..Kf5 just a big blunder by Ivkov? He put his king in a very unpleasant situation and lost the game, while for example 34..Kg7 just lost a pawn, at least at a first glance.
Sep-10-11  superstoned: @ <egilarne>: Section on "Dragging the King Out" in ct-art 4.0
Jul-31-19
Premium Chessgames Member
  al wazir: Easy, not medium.
Jul-31-19  saturn2: 35. Rxd4 and if black retakes with whatever he gets mated.
Jul-31-19
Premium Chessgames Member
  agb2002: White has a knight for a bishop.

White can win the bishop with 35.Rxd4:

A) 35... R(c,e)xd4 36.Re5+ Kxg4 37.f(h)3#.

B) 35... h5 36.Rxe5#.

C) 35... Re7 36.Ne3+ followed by Rde4 and Nc4.

Jul-31-19  Cheapo by the Dozen: Another fun one! Material is even, so when White captures with Rxd4 Black must recapture. But once he does, there's a nice mate in 2.
Jul-31-19
Premium Chessgames Member
  An Englishman: Good Evening: 32.Rd2 sets a nifty little trap into which Black falls; 32...Rd8; 33.Ne3,Re8 *might* prevent immediate disaster, but White has a better minor piece and pawn structure.

7...g6 and 8...Bg7 looks like a good plan until you see 9.Ba3!, because ...cxd4 means Black can't castle. Amazing how Petrosian can transform pressure on the c5 pawn in the opening into a horrible pawn structure for Black in the middle game, and from into a mating attack in the endgame. It's all connected; one follows the other.

Jul-31-19  Cheapo by the Dozen: So basically Black's pawns were so weak that he stumbled into a position where he had to lose one and, not accepting that fact, brought his king into trouble and lost more dramatically instead.
Jul-31-19  AlicesKnight: Being a CG puzzle, look for a sac - Rxd4 - and suddenly the mating-net shows up. Ivkov kicking himself? Been there, done it too often....
Jul-31-19  Ratt Boy: Pretty danged easy for a Wednesday.
Not that I'm complaining.
Jul-31-19  malt: Clocked this game before, with 35.R:d4
35...f6
(35...R:d4/ed4/cd4 36.Re5+ K:g4 37.h3#/f3# )

36.Ne3+ Ke6 37.Ra4

Jul-31-19
Premium Chessgames Member
  thegoodanarchist: Seen it before, and it’s a nice refutation by Tiger of Black’s play
Jul-31-19  King.Arthur.Brazil: My guess is: 35.♖xd4 exd4 36.♖e5+ ♔xg4
37.f3# Obviously: cxd4 or ♖xe5+ or h3 will not change the final answer. Time to check it.
Jul-31-19  eblunt: 34 .... Kf5 is quite a blunder. g7 or e6 maybe. Yes, a losing position, likely to lose a pawn, but could struggle on for a but. f5 is like resigning.
Jul-31-19  TheaN: Sneaky moves to watch out for when centralizing the king, especially when there are still multiple pieces on the board. For clarification, after <35.Rxd4> Black loses the bishop on account of <35....xd4 36.Rxe5+ Kxg4 37.h3#>.

<eblunt> Ivkov probably just missed the combination altogether and wanted to push for an advantage or at least counter play; after all the practically stronger piece is anchored in the center and White has no easy way to exploit the weaker pawns.

Jul-31-19  lentil: Petrosian game? Look for an exchange sac!
Jul-31-19  csmath: I saw the hook immediately but then I think "my knight is not protected" and then again, hey it is pawn-rank mate combination after the knight is taken. Very nice combination of two different mate patterns - when hook does not work, pawns come to rescue. I don't remember seeing this game before and I do have some Ivkov's books.

So 34. ...Kf5? is a blunder.

Jul-31-19  1stboard: I love the fact the Petrosian's rook can be captured any of three ways and it does not matter , it is still mate.
Jul-31-19
Premium Chessgames Member
  Breunor: Csmath,

Computer says yes 34 ... Kf5 is the losing move. If he plays Ke6 the valuation is white ahead 0.8 after 35 Nxe5 Bxe5 36 Rd2 Rd5 37 f4 Kd6 38 Rxe5 Rxe5 39 Rxe5

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