from the biography of bobby fischer

[Emeka Nweze]

There was a boy, a chess player once, who revealed that his gift consisted
partly in a clear inner vision of potential moves of each piece as objects
with flashing or moving tails of colored light. He saw a live possible
pattern of potential moves and selected them according to which ones made
the pattern strongest, *the tensions greatest*. His mistakes were made when
he selected not the toughest, but the most beautiful lines of light. –
virgin in the garden by a.s byatt.