Original sentence: After the war, he won the 4th Dutch Chess Championship at The Hague 1919.During the World War I, he played only in neutral The Netherlands and Denmark.In 1915, he took 2nd in Amsterdam, won in Scheveningen, and took 2nd in Rotterdam.In 1916, he tied for 2nd-4th, behind Paul Johner, in Copenhagen (the 9th Nordic Chess Championship), and won in Amsterdam.In 1917, he took 3rd in Scheveningen.In 1918, he won in Amsterdam, shared 1st in Arnheim, took 3rd in 's Hertogenbosch, and tied for 5-6th in Scheveningen (Rudolf Loman won).In 1920, he won and tied for 2nd-3rd, behind George Alan Thomas, in Bromley, took 5th (Réti won) and 4th in Amsterdam (Quadrangular, Max Euwe won), took 4th in Göteborg (P.In that year, he also shared 1st with Richard Réti in Amsterdam, took 9th in Hastings (José Raúl Capablanca won), tied for 3rd-4th in Scheveningen, won in Amsterdam, and tied for 2nd-3rd in Amsterdam.Johner won), and took 4th in Scheveningen
Edited sentence: After the war, he won the fourth Dutch Chess Championship at The Hague 1919.During World War I, he played only in the neutral Netherlands and Denmark.In 1915, he took second in Amsterdam, won in Scheveningen, and took second in Rotterdam.In 1916, he tied for second-fourth, behind Paul Johner, in Copenhagen (the ninth Nordic Chess Championship), and won in Amsterdam.In 1917, he took third in Scheveningen.In 1918, he won in Amsterdam, shared first in Arnheim, took third in 's Hertogenbosch, and tied for fifth-sixth in Scheveningen (Rudolf Loman won).In 1920, he won and tied for second-third, behind George Alan Thomas, in Bromley, took fifth (Réti won) and fourth in Amsterdam (Quadrangular, Max Euwe won), took fourth in Göteborg (P.In that year, he also shared 1st with Richard Réti in Amsterdam, took ninth in Hastings (José Raúl Capablanca won), tied for third-fourth in Scheveningen, won in Amsterdam, and tied for second-third in Amsterdam.Johner won), and took fourth in Scheveningen