Mezue ahịrịokwu na-esonụ:
Carlsbad 1907 chess tournament, nke abụọ Carlsbad 1911 chess tournament) emere na ebe ezumike nke Carlsbad ("German:" Karlsbad, "Czech:" Karlovy Vary), Czechoslovakia. Mmadụ iri na asatọ ndị sonyere, n'okpuru nduzi nke Viktor Tietz, na-egwu egwuregwu ha na Helenenhof Imperial Hotel, site na Eprel 27 ruo Mee 22, 1923.