Tarrasch

Siegbert Tarrasch was one of the strongest players of the 1890s while also working as a physician. He declined a possible world-title match in 1892 because of the demands of his medical practice. He eventually challenged Emanuel Lasker for the World Championship in 1908 but lost the match.

The classical school

As a teacher and writer, Tarrasch presented clear principles: occupy or control the center, develop pieces early, gain space, and keep the pieces active. These rules helped organize difficult decisions and spread positional thinking to a wide audience.

The hypermodern generation, represented by writers such as Richard Réti, challenged rigid use of those rules and showed that the center could also be controlled from a distance. That did not make Tarrasch's teaching useless. His principles remain practical foundations when treated as position-dependent guidance rather than laws without exceptions. His influence as an educator earned him the name Teacher of Germany.