Alexander Onischuk vs Bela Lengyel
Budapest FS07 GM Budapest HUN round 9 1993.07.??
English Opening: Four Knights System, Nimzowitsch Variation 1-0

Alexander Onischuk vs Radoslaw Wojtaszek
World Cup Tbilisi GEO round 2.1 2017.09.06
Catalan Opening 1/2-1/2

Alexander Onischuk vs Valerij Sergeyevich Popov
World Cup Khanty-Mansiysk RUS round 1.1 2005.11.27
Slav Defense: Bonet Gambit 1-0

Alexander Onischuk vs Sipke Ernst
Corus Group B Wijk aan Zee NED round 4 2005.01.18
Queen’s Gambit Declined: Tartakower Defense 1/2-1/2

Alexander Yevgenyevich Stripunsky vs Alexander Onischuk
US Championship St. Louis, MO USA round 1 2012.05.08
Caro-Kann Defense: Two Knights Attack, Mindeno Variation 0-1

Hikaru Nakamura vs Alexander Onischuk
US Championship St Louis, MO USA round 4 2010.05.17
Vienna Game: Heyde Variation 1/2-1/2

Alexander Onischuk vs Mikhail Gorozhanin
Pro Chess League chess.com INT round 2 2018.01.25
Queen’s Gambit Declined: Alapin Variation 1-0

Sergey Karjakin vs Alexander Onischuk
Aerosvit Foros UKR round 10 2007.06.28
Ruy Lopez: Closed 1/2-1/2

Alexander Onischuk vs Abhijit Kunte
Pro Chess League chess.com INT round 3 2018.01.31
Nimzo-Indian Defense: Leningrad Variation, Benoni Defense 1/2-1/2

Gata Kamsky vs Alexander Onischuk
US Chess Championship St Louis, MO USA round 4 2016.04.17
Amazon Attack: Siberian Attack 1/2-1/2