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Alexander Riazantsev vs Magnus Carlsen
6th European Individual Championship (2005), Warsaw POL, rd 13, Jul-01
Queen's Indian Defense: Kasparov-Petrosian Variation. Romanishin Attack (E12)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
Nov-04-05  avidfan: The critical point in this game seems to be 29...Rc8-c3. White options here are:

30.Rd7-d3 parrying the attack on the Queen

30.Rd7xb7 Rxe3 31.Bxe3 when the endgame will be 2B,N,R, 4P vs n,b,q,5p with a slight edge for Black and a fairly open position.

The text move 30.Qe3-e1 is too passive and 31.f3 only weakens the position more by opening the g1-h7 diagonal.

Position after 30...Rc8-c3


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34...Rc3-f3, 35...Rf2 and 36...Bxg2+ puts the finishing touch to the game.

Dec-17-05
Premium Chessgames Member
  Mateo: <avidfan> In fact, White has a won game after 33. Nb7! (x e4, d8), instead of 33. Bd2?.

33. Nb7! Rc7 (33... Qa7 34. Kh1 Bd5 (34... Rd3 35. Qe4! Rd7 36. Qe6 Rf7 37. Nd8 wins) 35. Bd2 Qd4 36. Qe6! Be6 37. Rd4 wins) 34. Qe4! Rd7 35. Qe6 Rf7 36. Bd6! wins.

Dec-17-05
Premium Chessgames Member
  Mateo: 35. Bc3? loses. Riazantsev should still play 35. Nb7! Bb7 (or with another move order: 35... Rf1 36. Qf1 Bb7 37. Ba5 Qa7 (37... Bc8? 38. Rd8 Kf7 39. Qf3! Qf3 40. gf wins) 38. Rd8 Kf7 39. Qd1) 36. Ba5! (xd8) Rf1 37. Qf1 Qa7 (only move) 38. Rd8 Kf7 39. Qd1 with a complicated game.
Dec-17-05
Premium Chessgames Member
  Mateo: <avidfan> <30.Rd7-d3 parrying the attack on the Queen> is not good. Black just plays 30... Rd3 and White is a pawn down.

<avidfan> <30.Rd7xb7 Rxe3 31.Bxe3 when the endgame will be 2B,N,R, 4P vs n,b,q,5p with a slight edge for Black and a fairly open position.> 30. Rb7? Re3 31. Be3 Qd8! 32. Ba6 Bb4! 33. Rb4 Qa5 34. Rb8 Kf7 with winning chances for Black.

<The text move 30.Qe3-e1 is too passive and 31.f3 only weakens the position more by opening the g1-h7 diagonal.> Not at all. 30. Qe1 and 31. f3 are strong moves. It is not at this point that Riazantsev lost his way but later on move 33 and on move 35.

Jul-04-06  notyetagm: 34 ... ♖c3-f3! is a great <RELOADING> example.

The White g2-pawn must <BLOCK> the h1-a8 diagonal to the cornered White h1-king and so it cannot also <DEFEND> the f3-square to keep the Black rook out.

Jul-04-07  notyetagm: 34 ... ♖c3-f3! must have been a terrible surprise for Magnus' opponent.

Position after 34 ... ♖c3-f3!


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The Black f3-rook is taboo since White is mated on the light-squared a8-h1 diagonal if it is taken by 35 g2xf3?? ♗e4xf3+ <reload> 36 ♗f1-g2 ♗f3x♗g2#.

(VAR) Why the Black f3-rook is taboo


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Nov-25-08  notyetagm: 34 ... ?


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34 ... ♖c3-f3!


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34 ... ♖c3-f3! is one of my favorite tactical blows by Carlsen.

34 ... ♖c3-f3! exploits the non-obvious fact that the White g2-pawn is <OVERWORKED>. The White g2-pawn must meet the threat to the h1-square/White h1-king posed by the Black e4-bishop and a8-queen by <BLOCKING> the a8-h1 diagonal at g2. The White g2-pawn must also <DEFEND> the f3-square, to keep the Black c3-rook out of this square.

<Hence the White g2-pawn is <OVERWORKED>, having to meet the threat to the <<<h1-square>>> by <BLOCKING> the line a8-h1 while also meeting the threat to the <<<f3-square>>> by <DEFENDING> f3.> The White g2-pawn by itself cannot meet these threats to both the h1- *and* f3-squares and Carlsen's 34 ... ♖c3-f3! hits the nail on the head on how to exploit this tactical shortcoming.

Oct-09-10  sevenseaman: 33. Bc3 is the move of a defeated man in lieu of resignation or a hope...33. RxB. But Magnus has a much better move that compromises all resource available to White with more options to Black.
Aug-12-20  aliejin: "The text move 30.Qe3-e1 is too passive"
Today stockfish gives this move like the better
with +1.35......

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