“Of course a great player like that has no weak spots. What a player like that does have are absolutely strong spots, so you surely do not want him to utilize his strengths, because then your chances decrease to zero. It is not surprising - chess being as complicated as it is - that Fischer had the greatest problems with positions, which were unclear in an unthematic way. When in effect everything just depended on accurate calculation. In those kinds of positions, he is still better than me of course, but the difference is not that great anymore, because it is just extremely difficult for both of us. The chance that he will make an error increases, whereas in a thematic or technical position he will just play perfectly from beginning to end and your chances of surviving are zero”