wn ▁without ▁the ▁difficulties ▁encountered ▁in ▁this ▁game . ▁▁▁ 1 2 . O - O ▁O - O ▁ 1 3 . B f 3 ▁B f 5 ▁▁ ▁After ▁ 1 3 ▁B g 5 ▁N b x d 5 ▁ 1 4 ▁N x d 5 ▁Q x d 5 ▁ 1 5 ▁B xf 6 ▁Q x d 1 ▁ 1 6 ▁R fx d 1 ▁g xf 6 , ▁Black ▁should ▁draw ▁easily . ▁ ▁Kas par ov ▁commented ▁that ▁he ▁thought ▁that ▁Kar p ov ▁felt ▁obliged ▁to ▁play ▁for ▁the ▁win ▁in ▁this ▁position . ▁▁ 1 4 . B g 5 ▁Re 8 ▁ 1 5 . Q d 2 ▁b 5 ▁ 1 6 . Rad 1 ▁N d 3 ▁▁ ▁( see ▁diagram ) ▁The ▁" oct opus ▁kn ight " ▁begins ▁to ▁domin ate ▁White ' s ▁position . ▁▁ 1 7 . N ab 1 ▁ ▁Kar p ov ▁could ▁have ▁played ▁more ▁act ively ▁here . ▁▁ 1 7 . ▁d 6 ▁would ▁have ▁been ▁better , ▁although ▁Black ' s ▁position ▁is ▁still ▁superior ▁after ▁ 1 7 . ▁... ▁Q x d 6 ▁ 1 8 . ▁B xa 8 ▁R xa 8 . ▁▁ 1 7 . ▁... ▁h 6 ▁ 1 8 . B h 4 ▁b 4 ▁ 1 9 . Na 4 ▁Bd 6 ▁ ▁Kas par ov ▁said ▁that ▁he ▁had ▁reached ▁this ▁position ▁in ▁his ▁home ▁prepar ation : ▁" A ▁position