I was looking at the interesting career of Bela Berger. On this oral history site, Bela Berger talks in an interview.
Here is a quote from the site:
"Berger, international chess master, speaks about learning to play chess as a child in Hungary; becoming a professional chess player; coming to Australia in 1957; becoming an international master in 1963; playing in Philippines, 1967; correspondence, blitz and blindfold chess; preparing for tournaments; personality of chess players; and the future of chess."
I was particularly interested in his comments about blindfold chess where he says he did not see the board and pieces as such, but experienced them as "pulsating energies".
I had previously heard comments from Ivanchuk along similar lines. Not very enlightening for me!
Berger comments that he could play as many as 10 games at a time blindfolded.
Could anyone who experience with, or knowledge of, such feats tell me what blindfold players "see" on the board?