Original sentence: Siegbert Tarrasch (March 5, 1862 – February 17, 1934) was one of the strongest chess players and most influential chess teachers of the late 19th century and early 20th century
Edited sentence: Siegbert Tarrasch (March 5, 1862 – February 17, 1934) was one of the strongest chess players and the most influential chess teacher of the late 19th century and early 20th century