Dee ihe na-aga n'ihu maka paragraf a - N'asọmpi ndị dị mkpa ọ bụ nke mbụ na Hilversum 1903, Hamburg 1905, na Copenhagen 1907 (n'ihu Maróczy na Schlechter), na-eme ka ọ bụrụ Nordic Champion; nke atọ, n'azụ Rubinstein na Maróczy, na Carlsbad
1907; nke abụọ, n'azụ Milan Vidmar, na Gothenburg 1909 (7th Nordic-ch); nke abụọ, n'azụ Rudolf Spielmann, na Stockholm 1909; na nke abụọ, n'azụ Carl Ahues, na Duisburg (DSB Congress) 1929.