29 MAY 1964, Page 16

5 P — Q 5 l' x P

6 Pxl.' OX0

7 P—K 4

II—K I. O'Kellv comments that the sacri-

nee 7 . Kt s,KP; 8 l'x Kt, Q—R 5 chi; 9 K---K 2 is unsound.•8 let-K 2 P—Q 3 9 Kt—Kt 3 . . . White's idea is a king's side attack based on IS—K13 4; Black must try to pot enough pressure on his K 4 and B 5 to restrain the pawns and to counter-attack with his queen s side pawn majority.

9 QKt—Q 2 10 B—K 2 Kt—K 4 11 0-0 Kt—Kt 3

12 B—QKt 5 . .. he could not do this on move 10 because of the reply Q—R 4; now he has castled, it is safe and--his pawns being on white squares—this bishop is White's least useful piece.

1210—Q 2

13 ,>< Kt XB. 13 ... Qh II; 14 B--Kt 5 is inferior,

85 P X 11 Q—B 3? This natural-looking move is the