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Dibyendu Barua vs Viktor Korchnoi
6th Lloyds Bank Masters Open (1982), London ENG, rd 5, Aug-29
Italian Game: Italian Variation (C50)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Nov-02-15  Once: That was fun. After the knight "sacrifice", a cheeky little pawn push (54.e5) and black can't stop both passed pawns.

Knights are usually wonderful in crowded middlegames but considerably less good in (some) passed pawn endgames.

Nov-02-15  varishnakov: 53.Nxf7 NxN 54.e5 and a pawn will queen.

Disturbingly difficult for a Monday.

Nov-02-15  devere: <varishnakov: 53.Nxf7 NxN 54.e5 and a pawn will queen. Disturbingly difficult for a Monday.>

I saw it, but wouldn't call it "very easy" If the Black King were one square closer it would fail.

Nov-02-15
Premium Chessgames Member
  perfidious: Not difficult overall, but hardly a typical Monday POTD.
Nov-02-15  thegoodanarchist: For the third time this year, I am saying this is the hardest Monday puzzle ever.

Bad choice of a puzzle for Monday.

Nov-02-15  kevin86: Two things happen here: though black's king is inside "the square" the pawn attacks the knight and gains a valuable tempo to remove the king fron said square.

Second, the knight is in such bad position- he cannot stop the one pawn while holding the other pawn back.

Nov-02-15  starry2013: Like Once and varishnakov I thought just push the pawn at first. But if you don't move your king up it's more difficult. The black king is in time.

Here's a way to mess up (the opposite of a solution)

Nxf7 Ng6
e5 Kb8
e6 Kc7
e7 Kd7

Nov-02-15  rozzatu: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaargh! And this was the monday puzzle!
Nov-02-15  zanzibar: I like <starry2013>'s comments about ...Ng6.

Slight alteration makes for a different solution:

(White to play)


click for larger view

Nov-02-15  zanzibar: (Black to move after 42.Qc8-g4)


click for larger view

Knights on the rim aren't always dim, one might say, if they go away.

(Black has one move to keep an advantage - i.e. sharp position)

Nov-02-15  zanzibar: The NYTimes article mentions Black going astray at 40 (as do other posters), but doesn't mention how Black could still save the game at move 41 (see above).

http://www.nytimes.com/1982/10/24/a...

Nov-02-15  lost in space: I love Mondays, especially when being in Italia, eating nice food and drinking redwine.

53. Nxf7 and no defence.

Nov-02-15  patzer2: <Zanzibar> Deep Fritz 14 @ 26 depth shows 41...Nxe1 = (move played) and 41...Qxe1+ = both leading to a level game.

Where Black's game starts to go from level to losing is with 42...Qxg4+? (-1.49 @ 27 depth, Deep Fritz 14). Instead, 42...Qh2+ 43. Kxe1 Qxb2 = (0.00 @ 26 depth) holds it level.

Earlier, 40...Qf3+! would've won for Black.

Nov-02-15
Premium Chessgames Member
  Richard Taylor: Good thing I didn't try to do the insane one as I missed White's second move. Mind you I was up late analyzing a game where I thought I had blundered and it turned out I was under an illusion and was in fact = so my excuse in this very easy Monday one is fatigue.

Or is it simply called stupidity?

I thought the K could do the business although I did wonder if Black's a pawn might Q. Not so easy if you don't play e5 on the second move. Chasing the N with the K nearly loses the game!!

Nov-02-15
Premium Chessgames Member
  Richard Taylor: I saw the N sac tho - in fact I've played combinations like this myself to win games. Ridiculous I didn't see 2 e5 immediately. I'm getting old...
Nov-02-15  patfoley: My first thought was 53 Kf4 f6 54 Kf5 fxe 55 Kf6 ... 56 Kg7 etc., but I was too lazy to calculate the pawn race. It looked like a win for white.
Nov-02-15  patfoley: It looks like my N sacrifice also wins.
Nov-02-15  zanzibar: <patzer2> yes, typo on my part ... typing 41 when I meant 42.

The position I gave in the illustration in the previous post does correctly give the move as 42, with the solution you give (42...Qxh2+).

Of course Korchnoi really messes up at move 40, squandering a won game... but the knight sac at 41, leveraging the b6-pawn, is a nice defensive problem.

Nov-02-15
Premium Chessgames Member
  Bubo bubo: White creates another passed pawn with 53.Nxf7. Black has to capture, but after 53...Nxf7 54.e5 he is unable to stop both pawns: The black king may enter the e-pawn's square with 54...Kb8, but only for a moment, as 55.e6 gains the decisive tempo: 55...Nh8 56.e7 or 55...Kc8 56.exf7 (or 55...N~ 56.h8Q)
Nov-03-15  patzer2: The most difficult aspect of yesterday's Monday puzzle might be finding a clear losing move.

The only losing move out of 15 choices, according to Fritz, is 53. Ng6?? In contrast, 53. Nxf7 is the strongest winning move.

Jul-30-17  clement41: I simply am fond of this game. So tense, so much action going on, and what an endgame!
Jul-14-24
Premium Chessgames Member
  keypusher: Just one of those things, I'm sure, but Korchnoi happened to be +0=0-6 on the black side of the Giuoco Piano, at least based on games in this database.

https://www.chessgames.com/perl/che...

Jul-14-24
Premium Chessgames Member
  perfidious: While Korchnoi did not, it is true, fare well in this, I came up with far more games:

https://www.chessgames.com/perl/che...

Jul-14-24
Premium Chessgames Member
  keypusher: <perfidious: While Korchnoi did not, it is true, fare well in this, I came up with far more games:>

My fault for running the "Giuoco Piano" search term on the main page.

Jul-14-24
Premium Chessgames Member
  perfidious: Had no idea that made any difference; the tell that something was not quite right was Korchnoi's loss to Bronstein being missing, along with his win from Miles at Johannesburg.

I have not the slightest idea why I recall things like that. Been doing it my whole life, but still cannot make sense of it.

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