Adolf Anderssen vs. Wilhelm Steinitz (Part 7)

Steinitz match, 1866

In 1866 Anderssen lost a close match with 30-year-old Wilhelm Steinitz (6 wins, 8 losses, no draws; level at 6-6, then Steinitz won the last 2 games)^[28] Although Steinitz is now known for inventing the positional approach to chess and demonstrating its superiority, the 1866 match was played in the attack-at-all-costs style of the 1850s and 1860s. This is generally seen as the point at which Steinitz succeeded Anderssen as the world's leading active player. Although ideas of a contest for the world championship had been floating around since the 1840s, the 1866 Anderssen-Steinitz match was not defined as being for the world championship and such a claim could not easily be made while Morphy was alive.

http://en.wikipedia.org/wiki/Adolf_Anderssen