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Teimour Radjabov vs Vassily Ivanchuk
Bazna King's Tournament (2011), Medias ROU, rd 6, Jun-17
Queen's Gambit Declined: Semi-Tarrasch Defense. Exchange Variation (D41)  ·  1/2-1/2
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Jun-17-11  virginmind: <haydn20> just like i predicted, nisi erred with 36...Red4 (he should have checked with the other rook) and now white has the advantage - or at least given by fritz. the engine may not understand the forced draw.

985: Karjakin,S - Nisipeanu,L, 5th Kings Tournament 2011


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Analysis by Fritz 11:

1. (1.74): 40.a6 Ra7 41.Rb1 Kf7 42.Rb6 Ke7 43.Re3+ Kd8 44.Rf3 Ke8 45.Rf4 Rc2 46.Rd4 g6 47.h4 Ke7 48.Rb7+ Rxb7 49.axb7 Rb2 2. (1.74): 40.Rb1 Ra7 41.a6 Kf7 42.Rb6 Ke7 43.Re3+ Kd8 44.Rf3 Ke8 45.Rf4 Rc2 46.Rd4 g6 47.h4 Ke7 48.Rb7+ Rxb7 49.axb7 Rb2

( 17.06.2011)

Jun-17-11
Premium Chessgames Member
  Domdaniel: <With all the pieces off the board this would be at least a draw for white> Only if the White King is near enough to pick off the a- and -b-pawns. And of course it's notoriously difficult to exchange *all* the pieces.
Jun-17-11  Ulhumbrus: White has a protected passed pawn. If this would give him a win in a pawn ending, this suggests that Black can't afford to exchange all of the pieces. This suggests that White can gain ground by offering exchanges which Black will want to avoid.
Jun-17-11
Premium Chessgames Member
  Domdaniel: <Ulhumbrus> - <This suggests that White can gain ground by offering exchanges which Black will want to avoid.> Correct, but hard to achieve in reality. Meanwhile, Black's a+b pawn pair is more dynamic and has to be watched closely.
Jun-17-11  haydn20: <Ulhumbrus> Nicely put.
Jun-17-11  Knight13: I agree with Domdaniel.
Jun-17-11
Premium Chessgames Member
  Domdaniel: <Knight13> Thanks. That's a phrase I don't hear every day - your one, that is.
Jun-17-11  virginmind: im sorry, i can't agree with <Domdaniel>
Jun-17-11  haydn20: Kd8 seems to accede to the draw.
Jun-17-11  haydn20: <virginmind> what is the theoretical status in the Nisi game?
Jun-17-11
Premium Chessgames Member
  Domdaniel: If 43.Rc1, I bet the King goes the other way this time, to b8. Chuky is still fishing.
Jun-17-11  virginmind: <Haydn20> from the engine's perspective, it's getting darker for black:

992: Karjakin,S - Nisipeanu,L, 5th Kings Tournament 2011


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Analysis by Fritz 11:

1. (2.04): 44.Ra5 Kf7 45.Rd5 Rec7 46.Kf5 Re7 47.Rbd6 Ra8 48.Rb5 Re2 49.Rb7+ Kg8 50.g4 Ra2 51.Rbb6 Ra3 52.h4 2. (2.00): 44.Re3 Rf7+ 45.Kg3 Rf5 46.Ra3 Kf7 47.Rf3 Rxf3+ 48.Kxf3 Ke8 49.Ke4 Kd8 50.Kd5 Kc7 51.Re6 Kc8 52.Kc5 Rc7+

( 17.06.2011)

Jun-17-11  Gordon1306: what is the theoretical status in the Nisi game?
Don't know about the theory, but Nisi is going to have a tough time defending
Jun-17-11
Premium Chessgames Member
  Domdaniel: 43...Kb8! Phew. For a moment there I thought Chuk was going to attempt a King invasion via b6 and c5. And either win or get mated.
Jun-17-11  haydn20: <Domdaniel> Good call on Kb8. Still, the pond seems fishless.
Jun-17-11
Premium Chessgames Member
  Domdaniel: <Haydn> Yep, all quiet in the pond. But you never know what might be lurking in the depths.
Jun-17-11
Premium Chessgames Member
  Gypsy: <haydn20: <virginmind> what is the theoretical status in the Nisi game?> Black saving chances are slim.
Jun-17-11  Ulhumbrus: One possible idea for making progress: White's N on c5 may be able to go to e6 if it is supported by White's B from a2
Jun-17-11  Kinghunt: <Gypsy: <haydn20: <virginmind> what is the theoretical status in the Nisi game?> Black saving chances are slim.>

Really? It seems to me that black can play Kh7 then just keep shuffling the rooks around on the 7th rank. How does white make progress?

Jun-17-11
Premium Chessgames Member
  Domdaniel: No fish today. Not even Karpov could extract a carp from these waters.
Jun-17-11  Gordon1306: Kinghunt
White to get a pawn on g6 - should compromise the Black king>
Jun-17-11
Premium Chessgames Member
  Domdaniel: <CG> Any chance of seeing the rest of the Nisi ending?
Jun-17-11  Kinghunt: A supported pawn on g6, sure, that would be a problem. But the moment g5 is played, black exchanges. A pawn by its lonely self on g6 would just be another liability for white. It may mean black has to switch to a different defensive strategy, but I think the weakness of the pawn compensates for that.
Jun-17-11
Premium Chessgames Member
  Gypsy: <Kinghunt: ... black can play Kh7 then just keep shuffling the rooks around on the 7th rank. How does white make progress?> Going for Kh7 and rook shuffling would probably not be wise for something like this:


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Jun-17-11  goldenbear: 18.d5!, for goodness sake...
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