Erik Ruben Lundin vs Karl Helling
Prague Olympiad Prague CSR round 12 1931.07.20
Grünfeld Defense: Exchange Variation, Classical Variation 1/2-1/2

Karl Helling vs Simon Rotenstein
Berlin-ch Berlin GER round 1 1932.??.??
Amazon Attack: Siberian Attack 1/2-1/2

Karl Helling vs Karel Opocensky
Prague Olympiad Prague CSR round 9 1931.07.17
Nimzo-Larsen Attack: Classical Variation 1/2-1/2

Paul List vs Karl Helling
It Cafe Koenig Berlin GER round 3 1928.09.24
Grünfeld Defense: Three Knights Variation, Hungarian Variation 0-1

Efim Bogoljubov vs Karl Helling
Dresden Dresden GER round 4 1936.06.09
Slav Defense: Bonet Gambit 0-1

Berthold Koch vs Karl Helling
It BSG Berlin GER round 7 1928.02.11
Queen’s Gambit Accepted: Classical Defense, Main Line 0-1

Gustav Rogmann vs Karl Helling
Berlin BSG Berlin GER round 1 1937.09.27
Scandinavian Defense 1/2-1/2

Efim Bogoljubov vs Karl Helling
It BSG Berlin GER round 9 1928.02.15
King’s Indian Defense: Larsen Variation 1-0

Lajos Steiner vs Karl Helling
It BSG Berlin GER round 2 1928.02.05
Ruy Lopez: Marshall Attack 0-1