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Lajos Portisch vs Samuel Reshevsky
Petropolis Interzonal (1973), Petropolis BRA, rd 14, Aug-12
Sicilian Defense: Accelerated Dragon. Maroczy Bind Gurgenidze Variation (B36)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Jul-04-05  jamesmaskell: Wow...brilliant game by Portisch. I know very little about Maroczy binds but after seeing this game perhaps its best to have a look at it.
Jul-04-05  iron maiden: Who was it that said all of Portisch's notable games were losses?
Jul-06-05  MrSifter: Korchnoi?
Jan-23-06  RookFile: I think 14. f4 is the best move of the game. Really sharp, very incisive.
Jan-23-06  Boomie: Portisch seems to have an unblemished record against Reshevsky, a claim Korchnoi can't make. I wonder if anyone else played more than 10 games against Reshevsky without a loss.
Jan-23-06  Dick Brain: I dont think Portisch ever met Reshevsky during the years when the latter was a serious world contender.
Jan-24-06
Premium Chessgames Member
  plang: That's because Portisch wasn't born yet.
May-01-07  noiselesion: <Kenkaku> (28...exf6 29. Qh8+ Kf7 30. Rh7+ Nxh7 31. Qxf7+ Kf8 32. Bh6#) It is: 29.Qh7+ not Qf7
Jan-07-08
Premium Chessgames Member
  chancho: Portisch also had the Indian sign on Petrosian for a while there.
May-06-08  Keano: Well, I wouldnt get carried away with this game - I know its quoted by Khalifman and others as a textbook example to prove Blacks move-order is inaccurate, but frankly I fail to see any problem with Blacks game.

I dont like Whites pawn on f4 - 17...Qb6! looks like the best way for Black to influence the dark squares. Verdict = No problems for Black.

May-27-08
Premium Chessgames Member
  whiteshark: <Keano> I doubt that your <<17...Qb6!> looks like the best way for Black to influence the dark squares. <Verdict = No problems for Black.>> will stand a deeper analysis.

<18.f5 Bd7 19.Rce1> as a first indication.

Aug-05-10  BISHOP TAL: Portisch plays the Maroczy almost perfectly here.
Jul-31-15
Premium Chessgames Member
  tpstar: White to Play and Win after 25 ... Nf8.
Aug-31-17  Toribio3: Portisch is one of the best grand master ever produced by Hungary to the world arena. We can learn a lot of lessons from his games.
Aug-31-17
Premium Chessgames Member
  offramp: <Iron maiden: Who was it that said all of Portisch's notable games were losses?>

Reshevsky.

Sep-01-17  Magpye: That's mean.
Sep-02-17  Albion 1959: After 25. Nf8, you just knew that fxg followed by Bxg6! and Rxf6! was coming:
Sep-02-17  RookFile: 17....Qb6 18. f5 is about 0.94 for white according to Stockfish. The basic idea is 18...gxf5 19. exf5 Bd7 20. Bxf6 followed by Nd5 from white with a bind.
Apr-04-20  jith1207: <<<Iron maiden: Who was it that said all of Portisch's notable games were losses?> Reshevsky.>>

Reshevsky was right after all. Just that the losses were his own.

Aug-15-20
Premium Chessgames Member
  zenwabi: This game is annotated by GM Michael Stean, in his excellent book, SIMPLE CHESS, at p. 149 in the chapter on SPACE.
Oct-27-20
Premium Chessgames Member
  kingscrusher: Great example of Space advantage use by Stean in Simple Chess indeed.
Oct-27-20
Premium Chessgames Member
  keypusher: Is there an echo in here? Speaking of echoes, this game reminds me of Larsen vs Petrosian, 1966.
Oct-27-20
Premium Chessgames Member
  offramp: Excellent example of a simple advantage used by Stean in SPACE CHESS, p.149.
Oct-27-20  SChesshevsky: As much as it's rumoured that Stean mentions space as an important factor in this lemon by Reshevsky, I'd say it's more wasted tempo by Sam that causes the demise.

It's hard enough to get anything timely going in these Dragon setups anyway. It always feels like your behind. So if one gives the opponent another tempo or two, Space might be only a minor worry. Mate or major material loss is probably likely. Think the same is shown in the earlier mentioned Larsen - Petrosian 1966 game.

Reshevsky also seems to fall behind and is punished in this nice win by Fischer:

Fischer vs Reshevsky, 1961

Oct-27-20
Premium Chessgames Member
  AylerKupp: <<SChesshevsky> As much as it's rumoured that Stean mentions space as an important factor in this lemon by Reshevsky, I'd say it's more wasted tempo by Sam that causes the demise.>

I would disagree. Compare the number of pieces developed after each of these moves:

Move White Black
1 0 0
2 1 0
3 1 1
4 1 1
5 1 1
6 1 2
7 2 2
8 3 2
9 3 3
10 4 3
11 5 3
12 6 4
13 6 4
14 6 5
15 6 5
16 6 5
17 6 6
18 6 6
19 6 6
20 6 5

So only twice in the first 20 moves did Black have 2 less pieces developed than White, and after 20 moves he only had 1 less piece developed than White.

Now look at the position after 20...Qd8:


click for larger view

White has 2 pieces and 1 P on the 5th rank and 2 pawns on the 4th rank. Black doesn't have any piece or pawn beyond the 3rd rank. And with respect to mobility White's pieces (excluding pawns) have 30 possible squares to move to, and Black's pieces have 25.

Therefore after 20 moves the difference between White's and Black's developed pieces is only 1 in White's favor. So it doesn't seem to me that Black has wasted too many tempi in development through move 20, at least compared to White. Yet White has a commanding space and mobility advantage, 5 pieces and pawns on the 4th rank and beyond compared to none for Black, and 30 possible moves by its pieces compared to only 25 for Black. And White is attacking 4 pieces or pawns compared to only 3 by Black.

So I think that White's demolition of Black's position in only 8 more moves was not made possible by an advantage in development or tempi lost by Black, but by White's greater command of space, piece mobility, and having more targets to attack. Which, given White's space advantage, made it harder for Black to sucessfuly defend.

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