Alexander Vladilenovich Goldin vs Igor Borisovich Efimov
? 1982.??.??
Nimzo-Indian Defense: Three Knights Variation, Duchamp Variation 1-0

Igor Borisovich Efimov vs Sergei Yuryevich Shipov
Yalta op Yalta UKR round 5 1995.??.??
English Opening: Anglo-Indian Defense, Grünfeld Formation 0-1