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Peter Leko vs Boris Gelfand
4th FIDE Grand Prix (2009), Nalchik RUS, rd 10, Apr-26
Russian Game: Classical Attack. Chigorin Variation (C42)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Apr-26-09  drmariogodrob: And another angel gets its wings.
Apr-26-09  ILikeFruits: who is...
the angel...
Apr-26-09  messachess: Leko out-calculated Gelfand from move 34. on and won a piece! Great game by Ledo, especially to win like this against a super-GM.
Apr-26-09  Shams: <And another angel gets its wings.> Is that every time Leko wins, or the Petrov loses?
Apr-26-09  parmetd: everytime the Petrov loses - it is from an article on the Dailydirt blog by Mig.
Apr-26-09  notyetagm: http://nalchik2009.fide.com/round-1...

SHIPOV:

<Leko-Gelfand

The line of the Petroff that occurred in the well-known 15th game of the Karpov-Kasparov championship match in Moscow 1985, was recently reassessed in White’s favor. Even the fire-proof Kramnik lost two games (to Naiditsch and Ivanchuk)! Lately Black found some saving ideas, but today another blow came! Leko showed that White does not have to regain the b5-pawn. By 17.Be3! he completed the development and soon started to create serious threats. <<<I enjoyed the tricky 20.Qc2! with the idea to sacrifice the queen on h7 after the knight check from e7.>>> The march of the f-pawn to f7 (21.f4!) was also splendid. It became clear that Peter follows his home analysis, <<<when he instantly played 25.Kf1! not allowing the Black’s queen to f2, and solving the back rank problem.>>> Of course, sooner or later Peter had to start working at the board, but it did not prevent him from following the first suggested line of the best computer engines until the very end of the game. White’s final attack (started with 27.f6!), its pointe – 34.Qg7+!, and, last, but not least, <<<the sharp-minded knight maneuver 43.Na8! make it a real masterpiece>>>. Congratulations, Peter, bravo!>

Apr-26-09  notyetagm: Interesting in this game how Leko threatens both an <ANASTASIA MATE> after 20 ♕b3-c2!

20 ♕b3-c2! Δ 21 ♘d5-e7+, 22 ♕c2xh7+!, 23 ♖e3-h3#


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and a <LOLLI MATE> after 29 ♕g5-h6.

29 ♕g5-h6 Δ ♕h6xh7+!, ♖d3-h3#


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Apr-27-09  notyetagm: CT-3093

<20...Rfe8!?

20...Rfd8?? defends agaist 21.Ne7+
with a queen sacrifice on h7 (well, it is
really hard for Black to miss this
mating combination here!), but loses a
queen after 21.Ra3! .>

20 ... ♖f8-d8?? would <TRAP> the Black a5-queen by <SELF-BLOCKING> Her Majesty's d8-flight square.

<31.b3! Qg4

Not: 31...Qxc7? 32.Qxh7+ Kxh7
33.Rh3#; 31...Ng4? 32.bxc4 Nxh6
33.Nxa8 Rxa8 34.Rd8+>

31 ... ♕c4x♘c7? allows White to play the <LOLLI MATE>, while the second line <COUNTERATTACK> 31 ... ♘e5-g4? allows a <BACK RANK MATE> based on the <KILLER PAWN> White f6-pawn after 34 ♖d1-d8+.

Apr-27-09  notyetagm: (VAR)
20 ... ♖f8-d8?? <self-block: d8>


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21 ♖e3-a3! <queen trapped>


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Apr-27-09  notyetagm: 31 ... ?


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(VAR)
31 ... ♕c4x♘c7?


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32 ♕h6xh7+! ♔h8x♕h7 33 ♖d3-h3# <lolli mate>


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Apr-28-09  JohnBoy: I don't get <parmetd>'s comment: <everytime the Petrov loses - it is from an article on the Dailydirt blog by Mig.>

And, <messa>, it looks like Leko out-calculated Gelfand at move 26.

Jun-22-09  acirce: All preparation until and including 26.Qg3, Péter reveals in the latest New In Chess. He had only noticed that the computer said 26..Ne5 lost by force, but he had not taken the time to check why! There are so many different ways for Black to play after 17.Be3 (supposedly the novelty, haven't checked this) that of course you don't have time to look at everything, but at the board he still regretted not taking those few extra seconds. So he had to find the beautiful win on his own, and did.

Also interesting, as we noted during the tournament, that even though he has started to play other first moves he now returned to 1.e4 exactly when he could be expected to meet the Petroff (here and against Kasimdzhanov). He confirms it was not a coincidence - he used to be "having nightmares" about the opening, but after working on it with Kramnik (another piece of evidence that he had indeed planned to keep playing this in Bonn) he "felt ready to check my opponent's knowledge about some of the subtleties".

Same Lékó who played 2.Bc4 against Kramnik in the World Championship tournament because he thought the Petroff had basically been analyzed to a draw.

Apr-07-11
Premium Chessgames Member
  wordfunph: <acirce: All preparation until and including 26.Qg3, Péter reveals in the latest New In Chess.>

taken from NIC Yearbook #97..

GM Peter Leko admitted that he had found virtually every move at home and at the board was simply posing questions that his opponent did not manage to answer.

Apr-07-11
Premium Chessgames Member
  wordfunph: on this game..

"I think that Boris played normal moves, but his position was already too unpleasant to play at the board."

- GM Peter Leko

Feb-26-16  clement41: Nice combo Qg7+
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