Najdorf Black
1 • Sesquipedailian •- English Attack
- Bg5 Najdorf
- Be2 lines
- Christopher's Line
- Sesquipedailian
Nimzo/Queens Indian System
1 • Sesquipedailian •- Nimzo Main
- Nimzo Classical
- Nimzo Saemich
- Reshevsky - 5. Ne2
- Sesquipedailian
Sicilian Responses
1 • Sesquipedailian •- McDonnell Attack
- Closed Sicilian
- 3. Bc4
- Wing Gambit
- Sesquipedailian