g15713: D. 1.1
Black to move. Last: 45.Ra4
 click for larger viewHere we have a divergence of opinions:
I. 45...Kg5?
<"An instructive error. The king heads for the queenside, but a safer road was via g7.">
<"The position of the king in front of the pawns contributes, as we shall see, to the adversary's counterplay."> (Dvoretsky) By Black going by this route Kg7, Kf7, Ke6, Kd5
<"which would avoid an exchange of pawns on the K-side and would have retained good winning chances."> (Levenfish, Smyslov) I. 45...Kg5
<"This move was condemned by everyone, but it does not seem to be inferior to 45...Kg7."> (Poghosyan) White to move. Last: 45...Kg5
 click for larger view46.f3!
<"Very strong move made by Botvinnik. White should organize without delay counterplay in the kingside."> (Poghosyan) B) 46...f5! <"looked better"> (Levenfish, Smyslov) 47 Kf2 Kf6
48 Ke3 Ke5 49 h4 Kd5 50 g4 fxg 51 fxg Kc5 52 gxh gxh  click for larger view
However now 53 Ra1 or Kd2 or Kd3 is a draw according to FinalGen A) 46...Kf5
D. 1.2
 click for larger view47.g4+! <"White immediately takes advantage of the chance to reduce the pawn material and split up the connected Black pawns."> (Levenfish, Smyslov) 1) 47...hxg4?
<"This move has been considered by many analysts as a decisive mistake throwing away the win. „Black's desire to avoid a weakness on h5 is perfectly understandable, but with this exchange he forfeits any winning chances“ (Marin). White’s defense is after the exchange of pawns much easier than in case of 47...Ke6 (2)."> (Poghosyan) 48.fxg4+ Ke5
<„This allows White to create a dangerous passed pawn on the h-file, ensuring a draw by just one tempo“> (Marin). D. 1.3
 click for larger view49.h4 Kd5 50.h5 gxh5 51.gxh5
<"The goal is reached - White has created a passed pawn"> (Dvoretsky).  click for larger view51...Ke6 52.h6 Kf7 53.Rg4 Kf8 54.Rf4 Ra6 55.Rg4! Ra7 56.Rf4 Kg8
57.Rxf6 a4 58.Rf2 Kh7 59.Ra2 Kxh6 60.Kf2 Kg5 61.Ke3. Draw. |