 In 1930, he took 6th in San Remo (Alexander Alekhine won), tied for 4-5th in Scarborough (Edgar Colle won), and tied for 3-5th in Liege (Savielly Tartakower won).In 1931, he tied for 2nd-4th in Berlin (Herman Steiner won), and tied for 4-6th in Swinemünde (27th DSB Congress; Efim Bogoljubow and Ludwig Roedl won).Ahues represented Germany thrice in Chess Olympiads.