Career
Ahues represented Germany thrice in Chess Olympiads. In 1930, at first board in 3rd Chess Olympiad in Hamburg (+4 –3 =7), team bronze;
In 1931, at second board in 4th Chess Olympiad in Prague (+3 –2 =8);
In 1936, at second board in 3rd unofficial Chess Olympiad in Munich (+4 –1 =12), team bronze. In 1936, he took 3rd, behind Alexander Alekhine and Paul Keres, in Bad Nauheim.
In 1944, he tied for 2nd-3rd, behind Elsas, in Luxembourg.
After World World War II, he lived in West Germany. In 1947, he tied for 2nd-3rd, behind Ludwig Rellstab, in Stuttgart.
Awarded the IM title in 1950.