Members · Prefs · Laboratory · Collections · Openings · Endgames · Sacrifices · History · Search Kibitzing · Kibitzer's Café · Chessforums · Tournament Index · Players · Kibitzing
Lajos Portisch vs Dieter Keller
Moscow Olympiad Final-A (1956), Moscow URS, rd 9, Sep-21
Queen's Gambit Declined: Exchange. Positional Variation (D35)  ·  1-0



explore this opening
find similar games 1 more Portisch/D Keller game
sac: 29.a6 PGN: download | view | print Help: general | java-troubleshooting

TIP: You can get computer analysis by clicking the "ENGINE" button below the game.

PGN Viewer:  What is this?
For help with this chess viewer, please see the Olga Chess Viewer Quickstart Guide.

Kibitzer's Corner
Mar-17-04  rochade18: This is what I call attacking play by by white.
Apr-28-04  Dudley: if 30...Qc7 31. b6! Qb8 32. Qa4! and white wins. Very cute- the pawn move sets up the fork of the knight and rook. A passed pawn is not always an end in itself- it creates other opportunities.
Premium Chessgames Member
  Honza Cervenka: After 30...Qc2 (30...Qc7 31.b6 Qb8 32.Qa4 ) 31.Rf1 Qc7 32.b6 Qb8 33.Rd1 black has no satisfactory defence against 34.Qa4 winning the Knight. Of course, 33...Qxa7 34.bxa7 is hopeless for black.
Premium Chessgames Member
  patzer2: With 29. a3!, White initiates a winning passed pawn combination.

After 29. a3! the key variations are

(1) 29...bxa6 30. Qd7! (not 30. b6? Qxc3 31. Qd7 Rb8 32. Qxd5 Qc2 33. Re1 a5 ) 30...Rf8 31. bxa6 Qxc3 32. Qxd5 [Play might continue 32...h6 33. a7 Qc2 34. Rf1 Qa2 35. h3! Qa4 36. Qb7 Nd2 37. Rc1 Qa3 38. Rd1 Kg7 39. d5 etc. ]

(2) 29...Qxc3 30. axb7 (or 30. Qxb7 ) as in the game. [Play could continue 29...Qxc3 30. axb7 Qc2 31. Rf1 Qc7 32. b6 Qb8 33. Qa2 .]

(3) 29...b6 30. Qd7 (or 30. Qxb6 ). [Play could continue 29...b6 30. Qd7 Rf8 31. Qxd5 Qxc3 32. Qxg5+ Kh8 33. Qe5+ f6 34. Qd6 Qc8 35. Qxb6 .]

(4) 29...Na5 30. axb7

(5) 29...Kg7 30. axb7

Apr-30-20  Marcelo Bruno: Hi, friends! Why didn't Keller take the b5 Pawn in his 17th move?
May-01-20  Muttley101: <Marcelo Bruno: Hi, friends! Why didn't Keller take the b5 Pawn in his 17th move?>

I suspect that if black played 17 ... c:b5, 18. Qb3 regains a pawn. Black is either left facing central pawns, or a weak d-pawn and open lines against the a- and b-pawns.

Black's 17 ... c5 was instead an attempt at counterplay, which involved ditching the a-pawn, of course. I don't know which is better, frankly, as black looks worse anyway, but it needs a more detailed and concrete analysis to answer your question comprehensively.

It is worth looking at earlier improvements- black can play ... a6 to hold up the b-pawn and exchange pawns, lessening the impact of the minority attack, and also play less stereotypically with 11 ... Na6 idea ... Nc7 and possibly Nb5-d6 later (see - Portisch vs Kasparov, 1989 and there are other examples of more successful QGD exchange for black linked in that game).

Hope that helped.

May-06-20  Marcelo Bruno: <Muttley101>: I believe your opinion is right, because, if after 18.Qc3 Black wants to protect the b5 Pawn with …a6, 19.Qxd5 is good for White, that gets two dangerous central Pawns, and that may be decisive during the endgame.

NOTE: Create an account today to post replies and access other powerful features which are available only to registered users. Becoming a member is free, anonymous, and takes less than 1 minute! If you already have a username, then simply login login under your username now to join the discussion.

Please observe our posting guidelines:

  1. No obscene, racist, sexist, or profane language.
  2. No spamming, advertising, duplicate, or gibberish posts.
  3. No vitriolic or systematic personal attacks against other members.
  4. Nothing in violation of United States law.
  5. No cyberstalking or malicious posting of negative or private information (doxing/doxxing) of members.
  6. No trolling.
  7. The use of "sock puppet" accounts to circumvent disciplinary action taken by moderators, create a false impression of consensus or support, or stage conversations, is prohibited.
  8. Do not degrade Chessgames or any of it's staff/volunteers.

Please try to maintain a semblance of civility at all times.

Blow the Whistle

See something that violates our rules? Blow the whistle and inform a moderator.

NOTE: Please keep all discussion on-topic. This forum is for this specific game only. To discuss chess or this site in general, visit the Kibitzer's Café.

Messages posted by Chessgames members do not necessarily represent the views of, its employees, or sponsors.
All moderator actions taken are ultimately at the sole discretion of the administration.

This game is type: CLASSICAL. Please report incorrect or missing information by submitting a correction slip to help us improve the quality of our content.

<This page contains Editor Notes. Click here to read them.>

Featured in the Following Game Collections[what is this?]
QGD Ex Minority Attack
from RickL's favorite games by RickL
More 1. d4!
by Benjamin Lau
29. a3!
from Passed Pawns by patzer2
QGD - Exchange Variation
from Games to Memorize by starscream74
Chessman1's favorite games 2
by Chessman1
QGD: Exchange. Positional Var (D35) 1-0 Outsider passer
from Queenside Attacks, Mates & Resignations A, D, E by fredthebear
29. a3!
from Passed Pawns by Jaredfchess
QGD: Exchange. Positional Var (D35) 1-0 Outsider passer
from .30-30 Winchester Lever-Action by fredthebear
29. a3!
from Passed Pawns by trh6upsz
29. a3!
from Passed Pawns by kingscrusher
QGD: Exchange. Positional Var (D35) 1-0 Outsider passer
from 1 Lunch-O-Bunch Fredthebear Munched by Littlejohn

Home | About | Login | Logout | F.A.Q. | Profile | Preferences | Premium Membership | Kibitzer's Café | Biographer's Bistro | New Kibitzing | Chessforums | Tournament Index | Player Directory | Notable Games | World Chess Championships | Opening Explorer | Guess the Move | Game Collections | ChessBookie Game | Chessgames Challenge | Store | Privacy Notice | Contact Us

Copyright 2001-2023, Chessgames Services LLC