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Alexander Riazantsev vs Sergey Karjakin
Karpov Poikovsky (2010), Poikovsky RUS, rd 8, Jun-10
Queen's Indian Defense: Fianchetto. Nimzowitsch Variation (E15)  ·  0-1



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Given 13 times; par: 47 [what's this?]

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Kibitzer's Corner
Jun-10-10  Ezzy:

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Riazantsev (White) missed a win against a fortunate Karjakin today. Riazantsev played 33 Qf7? when 33 Bf8!! wins 33 Bf8!! <To stop the king escaping via c5.> Rxf8 34.Rxe6+ Rd6 (34...Kc5 35.Rc7+ Kb4 36.Rxb6+ Kxa4 37.Ra7+ Qa5 38.Qc2#) 35.Qh7 Kc5 36.Qc7+ Kb4 37.Qxd6+ Qxd6 38.Rxd6 Winning.

To end up losing must give you some kind of 'shell shock.'

Jun-10-10  PAWNTOEFOUR: always nice reading your comments<Ezzy> and you're right..crafty,after 1.7 billion nodes comes up with this,after 33. Bf8... pv 33...Rxf8 34.Rxe6+ Rd6 35.Qh7 Kc5 36.Qc7+ Kb4 37.Qxd6+ Qxd6 38.Rxd6 Kc5 39.Re6 Kd5 40.Rxb6 Ke4 41.Rc7 Kd3 42.Rbc6 Rb8 43.a5 Rxb2 44.Rxc4 +528 Crafty
Premium Chessgames Member
  tamar: 32 Qf7 also wins, with the added benefit that if as in the game 32...c4 33 Qc7+ is mate in 3

Black therefore has to exit stage left with 32...Kb5 (32...d3 33 Rxe6 Qxe6 34 Qb7+ is another web) 33 b3! d3 34 Bd2 Qd4+ 35 Rf2 Rb8 36 Bc3!

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Queen cannot take or mate. Tough to see. Riazantsev had the general ideas, but mixed up the move orders.

Jun-11-10  amateur05: This game was very complicated. I wouldn't be upset too much to lose as white. Only the computers can find the right moves in such complex positions where you have minutes left on your clock. Some of the moves suggested by rybka on are rather counterintuitive. You have to calculate long lines with multiple variations.
Jun-12-10  Octal: White's pieces had infiltrated so far into Black's position that the safest place for the king was on White's side of the board!
Jun-17-10  ThomasZ: You may be wrong with 33.Bf8 :

-33.Bf8 Rxf8 34.Rxe6+ Rd6 35.Qh7? Qxe6
-33.Bf8 Rxf8 34.Rxe6+ Rd6 35.Qg7 Qxe6 36.Qxf8 and the position is almost equal

even after : 33..Rxf8 34.Rxe6+ Rd6 35.Qh7 Kc5 36.Qc7+ Qc6! I tried some variations and it is not very clear for me that white is winning

But I may be wrong too !

Jun-26-10  arjh: Not quite Thomas Z - Ezzy has it right - after 33.Bxf8 Rxf8 34.Rxe6+ Rd6 35.Qh7! Qxe6? White has 36.Qb7+ Kc5 37.Ra5+! Kb4 (37...bxa5 38.Qb5 mate) 38.Rb5+ Kxa4 39.Qa6 mate
Jul-15-10  pistraurder: 33.Bf8 Rxf8
34.Rxe6+ Rd6
35.Qh7 ...Kc5
38.Rxd6 Kb3
Kc2 40.Rd7
Jul-22-11  qqdos: This game has won Most Important Theoretical Novelty of Chess Informator 109 for White's 12.Nf5! A great pity for Riazantsev that he missed those wins at moves 32. and 33. - then made a series of later mistakes (perhaps demoralized?) 35.Rc7?; 37.c4?; and 38.Rb7?
Jul-23-11  qqdos: Having studied this highly complicated game a little further, I feel the pressure on Riaz must have been very great, particularly from moves 29-to-40 or so. Karjakin, having equalised by move 17 and getting ahead by move 20, was slightly lucky to bag the full point although he deserves every credit for exerting that pressure on Riaz for move after move. The rot set in with 29...d4? allowing White's major pieces to surround the black King and 32...c4?? (better 32...d3) allowed the brilliant shot 33.Bf8!! Perhaps on balance, divided spoils was fair - scrappy point to Sergey; prestige and Theoretical award to Alexander!

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