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Vassily Ivanchuk vs Anish Giri
Tata Steel Group A (2012), Wijk aan Zee NED, rd 9, Jan-24
Queen's Gambit Declined: Charousek (Petrosian) Variation (D31)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Jan-24-12  bubuli55: Herezzz Chucky!
Jan-24-12  Marmot PFL: An ending where one tempo makes all the difference. After 47...Rb7? the BK is one sq too far away than it would be if the trade happened on c7.
Jan-24-12  bubuli55: Wonderful Game!
Jan-24-12
Premium Chessgames Member
  Penguincw: In the end, Ivanchuk down a pawn still wins due to better king position.

The h-pawn is just far enough to promote. If it were a g-pawn, black would win.


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57.g6 ♔xe7 (eliminating one passed pawn) 58.g7 ♔f7 59.g8=♕+ ♔xg8 60.♔e5 [60.♔c3 (trying to chase the a-pawn) a2 61.♔b2 a1=♕+ 62.♔xa1 f3 63.♔b2 f2 64.♔c3 f1=♕ wins (see diagram 2)] 60...a2 61.♔xf4 a1=♕ 62.♔xf5 ♕d4 and mate to follow soon.

Diagram 1


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Diagram 2


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Jan-24-12  iking: 46. Rh6! deninished Giri's chances for a draw ....

Chucky! chucky! chucky! LOL ....

Jan-24-12  iking: 52.f4 is a winner .... but Giri kept on moving to the end.... hoping Chucky will blunder ....
Jan-24-12  roninmb: Funny again.
Black choose "complications" with 33...Rc7 instead of simplifying bxc6 and subsequently clearing Queen side which would be enough to equalize without any danger of losing the game.
Jan-25-12  xthred: Why not 34...KxN?
Jan-25-12  King Death: < xthred: Why not 34...KxN?>

White takes the rook on d8.

Jan-25-12  4tmac: It looks like white's last 6 Pawn moves must be precise.
Jan-25-12
Premium Chessgames Member
  Troller: It's difficult to imagine Anish didn't consider f4 when playing Rb7??

After gxf4 Black's king is obviously outside the square of White's h-pawn, while White sort of controls the Black passers. But Giri may have counted on White simply pushing the h-pawn and missed the zwischenzug e6!, eventually forcing Black's king to the 8th row, allowing White to queen his h-pawn with check.

Jan-25-12  solskytz: doesn't 37. cxb7 win immediately? I mean, it looks like 37...Nxb7 is obligatory, and then 38. bxa6 would be a classical case of the pathetic knight on b7 trying to spot a prodding rook pawn on the 6th - here in an improved version, as it's also supported by a rook... what did I miss guys?
Jan-25-12
Premium Chessgames Member
  Sastre: If 37.cxb7, Black is still alive after 37...Nxb5 38.Nxd5 (38.b8=Q Nc3+ 39.Kd2 Rxb8 40.Kxc3 Rc8) Nd6 39.Rxa6 Nxb7 40.Rxf6+ Kg7.
Jan-25-12
Premium Chessgames Member
  HeMateMe: Black is "outside the square."
Jan-25-12  solskytz: Oh I see... missed the discovered attack on the new queen...

still, following your analysis, for some reason I like 37. cxb7 with the variation you give, better than the game continuation...

Sep-11-17  clement41: OMG I just came across this much under-rated game. What an endgame! Look at the number of critical moments and ending transpositions! A titanic fight. 37 cb is interesting, as 37...Nxb7? fails to 38 ba +- but 37...Nxb5 holds: A 38 Nxb5 39 Rxb5 leads to a drawish rook endgame B 38 b8Q Nc3+ 39 Kd3 Rxb8 40 Kxc3 (or Rxa6) Rc8 = C 38 Nxa6 Nc3+ 39 Kd3 Nxa2 40 b8Q Rxb8 41 Nxb8 = just to show a few lines.

But the true gem in this game to me is the position after black's 47th, or, in its purer form, after black's 53rd:


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White to move and win

As quite often in pawn endgames, the position is EXTREMELY tempo-based, extremely sharp (one slight inaccuracy and the advantage changes side), and here the move order is unique.

This position stuns me quite a lot.

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