Ortiz Q, Johnny Alexander vs Dominguez Aguilar, Guillermo
Chess Olympiad Batumi GEO round 5.47 2018.09.28
Sicilian Defense: Accelerated Dragon 1/2-1/2

Ortvin Sarapu vs Predrag Nikolic
Thessaloniki Olympiad Thessaloniki GRE round 1 1984.11.19
French Defense: MacCutcheon Variation, Wolf Gambit 1/2-1/2

Oscar Chajes vs John Homer Stapfer
American National New York, NY USA round 4 1913.01.24
Philidor Defense 1-0

Osmel Garcia vs Juan Manuel Bellon Lopez
XXXVI Capablanca Mem Premier II Havana CUB round 1 2001.05.05
Modern Defense 1-0

Ostrovsky vs Rashid Gibiatovich Nezhmetdinov
22nd RSFSR Ch Cheliabinsk URS 1963.10.??
East Indian Defense 1/2-1/2

P Munster vs Barulin
Tournament of Cities Workers group (final) Moscow URS 1924.??.??
Grünfeld Defense: Counterthrust Variation 0-1

P Topholm vs R Pape
FS 1987/88 FS 1987/88 1988.??.??
Elephant Gambit 0-1

P V Nandhidhaa vs Ni Hua
14th Dubai Open Dubai UAE round 1.10 2012.04.15
French Defense: Advance Variation 0-1

Paivi Walta vs Veronika Exler
European Team Championship (Women) Novi Sad SRB round 4 2009.10.25
Nimzo-Indian Defense: Normal Variation, Gligoric System, Exchange at c4 0-1

Pal Benko vs William James Lombardy
US Championship 1958/59 New York, NY USA round 3 1958.12.??
Queen’s Gambit Declined: Ragozin Defense 0-1