Hans Olav Lahlum vs Geir Sune Tallaksen Ostmoe
Bergen Bergen NOR round 5 2000.07.25
Catalan Opening: Closed 1/2-1/2

Stein Arild Aarland vs Geir Sune Tallaksen Ostmoe
Bergen Bergen NOR round 7 2000.07.27
English Opening: Anglo-Indian Defense, Grünfeld Formation 0-1

Leif Erlend Johannessen vs Geir Sune Tallaksen Ostmoe
Norwegian Championship Sandnes NOR round 1 2005.07.02
Catalan Opening: Closed 1/2-1/2

Sverre Heim vs Geir Sune Tallaksen Ostmoe
Norwegian Championship Molde NOR round 3 2004.07.05
Ruy Lopez: Closed, Bogoljubov Variation 1/2-1/2

Geir Sune Tallaksen Ostmoe vs Carl Fredrik Ekeberg
Norwegian Championship Sandnes NOR round 2 2005.07.03
Blackmar-Diemer Gambit: Netherlands Variation 1/2-1/2

Dag Madsen vs Geir Sune Tallaksen Ostmoe
Norwegian Championship Moss NOR round 2 2006.07.09
Catalan Opening: Open Defense 0-1

Geir Sune Tallaksen Ostmoe vs Roy Harald Fyllingen
Bergen Bergen NOR round 8 2000.07.28
Bogo-Indian Defense 0-1

Magnus Carlsen vs Geir Sune Tallaksen Ostmoe
Norwegian Championship Sandnes NOR round 5 2005.07.05
Queen’s Indian Defense: Buerger Variation 1-0