The last victory was significant, but this victory was far more significant. The professional dan scale isn't exactly linear and the ranks can't simply be compa

The last victory was significant, but this victory was far more significant. The professional dan scale isn't exactly linear and the ranks can't simply be compared numerically even when they are granted by the same organization - and Korea, China and Japan all have at least one organization of professional go players that each maintain their own rankings. Sedol is a current top player who has won many, _many_ titles and Fan Hui is 10 years out of regular professional play and doesn't have a title to his name. What people were saying before is still true today. All of the reporting has suffered from the usual problems of describing something specialized to the general public, and all the typical inaccuracies of such journalism (compounded by Google's PR department being the source of some of it). Congratulations to the team at Deepmind, and I'm wishing good luck for Sedol in the remaining matches - if he wins we would certainly get to see a second series rematch some months down the line, and that would be very exciting for go fans everywhere.