New York Times, New York, New York, Thursday, May 24, 1962 - Page 32
Small Advantages Pile Up
“It is the accumulation of these small advantages that often decides contest. In this instance, 9…Kt-KKt5 was more severe than usual because after 10 …KtxB White's black squares are seriously compromised. White failed to find the best continuation, which was 10 B-Kt5, P-B3 11 P-Q5, PxB 12 P-KR3. (This, incidentally was suggested by Bobby Fischer.)”