Info Tnk
It transpires that White loses a piece after 31 gt c8 stedS 32 gt xb6 steel. The only defence against 32 Ac2. On 33 gt d3 there would have followed 34 Ac2. If 34 d5 Black has the decisive 34 the13 . 34 bxc5 35 stee2 gt c6 36 Ag8 h6 37 e6 sted6 38 sted3 gt e5 39 stee3 g5 Black wants to eliminate the e6 pawn, without allowing the white king across to the queenside pawns. 40 b3 gt c6 41 stete gt e5 42 steel steel 43 g3 amp g6 Smyslov embarks on decisive action, which demanded precise calculation....
Info Bsg
The correct decision. Jansa allows the creation of a weak isolated pawn on the c-file, but gains the chance to successfully complete his queenside development. 17 hxc6 bxc6 18 2hcl e6 19 Ac4 2fe8 20 2b7 f8 21 f4 c5 22 e4 2eb8 Black courageously allows a further worsening of his pawn formation, for the sake of exchanging the opponent's active pieces. Now, however, the Czech grandmaster must be especially careful, since both the bishop ending and the rook ending may be lost for Black. 23 2xb8...
Info Kjb
The evaluation of this position is surprising - White stands slightly worse. The point is that he can prevent the freeing advance b5 only by a2-a4, but then the black knight will occupy an ideal post at c5. 17 f3 amp c6 18 Aa3 amp a7 19 foci d5 Black gets rid of his weak pawn on the d-file and completely seizes the initiative. 20 Axe7 2xe7 21 foe3 2ec7 22 foz4 Ec6 Karpov is attentive to the opponent's counterplay. The careless 22 b5 would have handed White the initiative after 23 fob6 2b8 24...