11 ms·

I would vouch for this being the correct interpretation, and the parent being quite wrong. It's originally from a study by W.G. Chase and H.A. Simon in 1973, b

• lmkg 17y ago
  After consulting GEB, I replied to parent with corrections, we're both largely right in point but got some details wrong. The text claims the study comes from Adriaan de Groot in the 1940's, the bibliography refers to a book published in 1965 by Mouton, under the title Thought and Choice in Chess. If you can summarize the other study, I'd love to hear it.
  • mquander 17y ago
    It's not the most scholarly thing in the world, but this Chessbase biography of de Groot suggests that where de Groot measured the distinction between novices and experts, Chase and Simon were the first to measure differences between random positions and game-like positions. http://www.chessbase.com/newsdetail.asp?newsid=3290 http://www.chessbase.com/newsdetail.asp?newsid=3290