King's knight opening (C40)
e4 e5 Nf3
e4 e5 Nf3
| Damiano's defence (C40) f6 | Nc6 King's pawn game (C44) |
| Greco defence (C40) Qf6 | Nf6 Petrov's defence (C42) |
| Gunderam defence (C40) Qe7 | Qe7 Gunderam defence (C40) |
| King's pawn game (C44) Nc6 | Qf6 Greco defence (C40) |
| Latvian counter-gambit (C40) f5 | d5 QP counter-gambit (C40) |
| Petrov's defence (C42) Nf6 | d6 Philidor's defence (C41) |
| Philidor's defence (C41) d6 | f5 Latvian counter-gambit (C40) |
| QP counter-gambit (C40) d5 | f6 Damiano's defence (C40) |