Sergey Karjakin vs Alexander Onischuk
World Cup Baku AZE round 2.3 2015.09.16
Ruy Lopez: Berlin Defense 1/2-1/2

Viktor Kupreichik vs Alexander Onischuk
Groningen op Groningen NED 1995.12.??
Ruy Lopez: Old Steinitz Defense, Semi-Duras Variation 0-1

Alexander Onischuk vs Alexander Morozevich
Bundesliga 1998/99 GER round 9 1999.01.31
French Defense: Guimard Variation, Thunderbunny Variation 1-0

Alexander Onischuk vs Dmitry Jakovenko
Aerosvit Foros UKR round 1 2008.06.08
Semi-Slav Defense: Meran Variation 1/2-1/2

Alexander Onischuk vs Marat Dzhumaev
Chess Olympiad Tromso NOR round 7.10 2014.08.09
King’s Indian Defense: Accelerated Averbakh Variation 1-0

Alexander Onischuk vs Smbat Gariginovich Lputian
Karpov It Poikovsky RUS round 3 2001.05.03
Queen’s Gambit Declined: Alapin Variation 0-1

Dmitry Jakovenko vs Alexander Onischuk
Karpov Poikovsky Poikovsky RUS round 4 2012.10.01
Queen’s Gambit Declined: Barmen Variation 1-0

Sandro Mareco vs Alexander Onischuk
Chess Olympiad Tromso NOR round 10.6 2014.08.12
English Opening: Agincourt Defense, Keres Defense 1/2-1/2

Alexander Onischuk vs Alexey Shirov
World Cup Khanty-Mansiysk RUS round 3.2 2007.12.01
Queen’s Gambit Declined: Alapin Variation 0-1

Sergei Vladimirovich Rublevsky vs Alexander Onischuk
3rd Karpov It Poikovsky RUS round 4 2002.04.19
Scotch Game 1/2-1/2