His first achievement was first place in a tournament in Nuremberg in 1906.
He took 16th place in the 3rd Polish Chess Championship at Warsaw 1935 won by Savielly Tartakower, and 11th place in the 4th Polish Championship at Jurata 1937, won again by Tartakower.
He scored excellent results in major international tournaments, including first at Amsterdam 1926, ahead of Savielly Tartakower and future world champion Max Euwe; first at Meran 1926, ahead of Esteban Canal; and first at Scarborough 1930, ahead of Maróczy and Rubinstein.
He was 1st= in Vienna (1920) with Savielly Tartakower; 1st in Margate (1923); 1st in Meran (1924); 1st in Budapest (1926) with Mario Monticelli; 1st in Vienna (1927) and he shared first spot in the Vienna tournaments of 1928 and 1933 (Trebitsch Memorial)—the former with Sándor Takács and the latter with Hans Müller; and finally he was 1st in the tournament at Ostrava of 1933.