Openings
- Owen Defense
- Owen Defense: Guatemala Defense
- Owen Defense: Hekili-Loa Gambit
- Owen Defense: Matovinsky Gambit
- Owen Defense: Naselwaus Gambit
- Owen Defense: Smith Gambit
- Owen Defense: Unicorn Variation
- Owen Defense: Wind Gambit
- Pirc Defense
- Pirc Defense
- Pirc Defense
- Pirc Defense: Roscher Gambit
- Rat Defense: Antal Defense
- Rat Defense: Fuller Gambit
- Rat Defense: Harmonist
- Rat Defense: Petruccioli Attack
- Rat Defense: Spike Attack
- St. George Defense
- St. George Defense: Polish Variation
- St. George Defense: San Jorge Variation
- St. George Defense: Zilbermints Gambit
- Van Geet Opening: Berlin Gambit
- Ware Defense
- Ware Defense: Snagglepuss Defense
- Scandinavian Defense
- Scandinavian Defense
- Scandinavian Defense: Anderssen Counterattack
- Scandinavian Defense: Anderssen Counterattack, Collijn Variation
- Scandinavian Defense: Anderssen Counterattack, Goteborg System
- Scandinavian Defense: Anderssen Counterattack, Orthodox Attack
- Scandinavian Defense: Blackburne Gambit
- Scandinavian Defense: Blackburne-Kloosterboer Gambit
- Scandinavian Defense: Boehnke Gambit
- Scandinavian Defense: Bronstein Variation
- Scandinavian Defense: Classical Variation
- Scandinavian Defense: Grünfeld Variation
- Scandinavian Defense: Gubinsky-Melts Defense
- Scandinavian Defense: Icelandic-Palme Gambit
- Scandinavian Defense: Kiel Variation
- Scandinavian Defense: Kloosterboer Gambit
- Scandinavian Defense: Kádas Gambit
- Scandinavian Defense: Lasker Variation
- Scandinavian Defense: Main Line
- Scandinavian Defense: Main Line, Leonhardt Gambit
- Scandinavian Defense: Main Line, Mieses Variation
- Scandinavian Defense: Marshall Variation
- Scandinavian Defense: Mieses-Kotroc Variation
- Scandinavian Defense: Modern Variation
- Scandinavian Defense: Modern Variation
- Scandinavian Defense: Modern Variation, Gipslis Variation