Lajos Portisch vs Tigran Petrosian (1964)

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Lajos Portisch vs Tigran Petrosian
Tel Aviv Olympiad Final-A (1964), Tel Aviv ISR, rd 4, Nov-13
Nimzo-Indian Defense: Panov Attack. Main Line (E54) · 1/2-1/2

ANALYSIS [x]

FEN COPIED

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Oct-04-12		wordfunph: "I believe in victory, but I'll never forget the game against Petrosian. I was so near to a great triumph...but that's chess." - GM Lajos Portisch

Oct-04-12		paul1959: Up to the 1974 candidate match, Portisch was +4 with no loss against Petrosian.

Jul-22-13		jerseybob: 30.Qxh7? throws away the win. White should drop back with 30.Qf3, consolidate his shaky pawns and start the positional squeeze.

Jul-22-13		cunctatorg: @jerseybob; the important fact isn't what White should play in order to consolidate his decisive advantage, it is the fact that a Grandmaster of the caliber of Lajos Portisch missed the path to victory...

Jul-22-13		jerseybob: cunctaorg: Dealing with just your second point, the reason any of us, whether GM or woodpusher, "misses the path to victory", is that we're human and fallible. That's not just true of chess, but much more important life and death issues.

Jul-23-13		offramp: Portisch certainly should've won this. The moves just before move 40 look as if they may have been in time trouble. If he'd had time he may have found a way to avoid the perpetual.

Jul-23-13		jerseybob: offramp:As great as Portisch was in his prime, at times he was just unrecognizable, like in his match against Korchnoi in the USSR vs World Match 1970, when he blew two wins. But, you haven't really played chess until you've done that!

Jul-23-13		perfidious: Absent clearly weak play, one great player can make another appear unrecognisable as well.

Feb-18-18		sachistu: According to Clarke's account in BCM 1965, both players were in time trouble on move 30. The move 30.Qf3! was pointed out by Clarke. In Barcza's notes (Magyar Sakkelet, 1965), he also suggests 30.Qf3! with the following continuations 30...g6 31.Qa8+ Kg7 32.Rd8! or 30...Qe8 31.Qb7 Ne7 32.Rd7! Still in zeitnot, Portisch missed 31.Rd3! a5 32.Rf3 b4 33.ab ab 34.Qxg6! as pointed out by Barcza. Portisch still had a chance to play Rd3 on subsequent moves. It's always easier to find these moves when not pressed for time. Another source gave the weaker 37...Qf5? when White could still have won e.g. 38.Rd8+ Ke7 39.Rxg8! (but not 39.Qxg8? which would transpose into the game).

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