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Paul Keres vs Tigran Petrosian
USSR Championship (1950), Moscow URS, rd 16, Dec-09
French Defense: Tarrasch Variation. Guimard Defense (C03)  ·  0-1

ANALYSIS [x]

FEN COPIED

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Given 22 times; par: 55 [what's this?]

Annotations by Stockfish (Computer).      [35437 more games annotated by Stockfish]

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Kibitzer's Corner
Mar-02-06  mormonchess: What a sharp game! I'm definitely going to have to turn Junior and Fritz on for this one. A true battle of the pieces. Petrosian's Knight sacrifice on 17...Nb4 is extremely interesting.
Dec-01-08  Antonius Blok: Howhowhow !!!

I'll have for hours to try to undrestand what's beneath all these moves!

Such sharp positions exists just to let you despair!

However: Like how Petro takes his time on 9...Qc8 and 10...Bd7. And the position: very strange !!

If someone can telle me what happens if 34... Bxe4

Dec-01-08
Premium Chessgames Member
  sleepyirv: <Antonius Blok> Black is more interested in the mate
Jan-08-09  Lt.Surena: 29.. f4!! Wow, Excellent move. White's king is locked up now. Petrosian calculates the next 7 moves. Chokes off the white position like a boa constrictor. 30.Ne5 Forced move by Keres in desperation.

Holy batman, what a game !!

Nov-12-09  Garech: Holy Batman indeed, took the words right out of my mouth there Surena! ;0)
Jun-04-12  Wyatt Gwyon: Yeah, this is nuts. Somebody think of a pun.
Jun-05-12
Premium Chessgames Member
  yiotta: So that's how you play the Guimard variation.
Jun-05-12  DrGridlock: Getting out Komodo, one discovers a very interesting twist in this game. At move 28 it is White, not Black who is winning. However, in order to maintain his initiative, White has to sacrifice the exchange. He may do this immediately, by taking on d7 (and then playing his rook to e6 to drive away the queen and pick up the d-pawn), or he may delay the exchange sac one move by playing g3, and then his rook to e6 where it is captured by Black's bishop. (It is also this threat of Re6 and an exchange sac which forces Rd8 in response to Qb1 in Komodo's third favorite white line).

In "Secrets of Modery Chess Strategy," John Watson writes, "The increasing frequency of the exchange sacrifice is probably the most widely-acknowledged change in modern chess technique." In some instances, the exchange sacrifice is not only a tactical tool, but what the position demands. Keres did not sac the exchange, and Petrosian was able to develop an overwhelming attack.


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Analysis by Komodo32 3 32bit (depth = 27):

1. ² (0.50): 28.g3 Rb7 29.R1e6 Bxe6 30.Rxe6 Qd8 31.Nh4 f4 32.Nf5 Rd7 33.gxf4 Qc7 34.Ke2 Rf8 35.Kf3 Qc1 36.Qb1 Qa3 37.Re3 Qa8 38.Be4 Nc4 39.Re2 Qa5 40.Kg2 Na3 41.Qd3 Nxb5 42.Ne7+ Rxe7 43.Bh7+ Kh8

2. ² (0.40): 28.Rxd7 Nxd7 29.Re6 Qd8 30.Rxd6 Qa5+ 31.Ke2 Rc3 32.Qb1 Qa3 33.Ra6 Re8+ 34.Re6 Ra8 35.Bxf5 Rc1 36.Qd3 Rc3 37.Qd2 Qb3 38.Re3 Rxe3+ 39.fxe3 Qxb5+ 40.Qd3 Ra2+ 41.Ke1 Qxd5 42.e4 Qf7 43.Qb5 Nf6

3. ² (0.27): 28.Qb1 Rd8 29.Rxd7 Rxd7 30.Bxf5 Rdb7 31.Be6+ Kh8 32.Ke2 Na8 33.Kf1 Rxb5 34.Qe4 Rb2 35.Rc1 Nb6 36.Kg1 Re8 37.Re1 Rf8 38.Rf1 Nc4 39.Qd3 Rb4 40.Re1 Ra8 41.Bd7 Rab8 42.h3 g6 43.Nd2 Nb6

Jun-05-12  Wyatt Gwyon: <Dr. Gridlock> Interesting stuff.

Anybody have a pun yet? This should be a GOTD.

Jul-02-14  Everett: Dr.Gridlock, thanks, for the find, how white can maintain an advantage (not winning) at move 28.
May-11-17  dashjon: what a great game
Jun-18-20  Baahubali: Keres thought he wd use the connected passed pawns but forgot petrosian had a checkmate coming before any of that.
Jun-18-20
Premium Chessgames Member
  Fusilli: <yiotta: So that's how you play the Guimard variation.> My thought exactly.
Jun-19-20
Premium Chessgames Member
  perfidious: Keres had a curious affinity for the innocuous 4.c3, though he would score a crushing victory in Keres vs Botvinnik, 1955 after the more common rejoinder 4....e5.

The most celebrated game of all in the Guimard is doubtless Fischer vs Robert E Byrne, 1965, which featured an improvement on Botvinnik's play.

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