in 1926, he emigrated to germany. he won, ahead of akiba rubinstein that year at berlin. at bad kissingen 1928, he triumphed (+6 –1 =4) over a field which included capablanca, nimzovich and savielly tartakower. bogoljubov won two matches against max euwe (both 5.5–4.5) in 1928 and 1928/29 in holland. he played matches for the world chess championship twice against alekhine, losing 15.5–9.5 in 1929, and 15.5–10.5 in 1934.