English Caro-Kann defensive system (A12)
c4 c6 Nf3 d5 b3
c4 c6 Nf3 d5 b3
| English Caro-Kann defensive system (A12) Nf6 Bb2 | Bg4 English Caro-Kann defensive system, Bogolyubov variation (A12) |
| English Caro-Kann defensive system, Bogolyubov variation (A12) Bg4 | Nf6 Bb2 English Caro-Kann defensive system (A12) |
| English London defensive system (A12) Nf6 g3 Bf5 | Nf6 g3 Bf5 English London defensive system (A12) |
| English Torre defensive system (A12) Nf6 g3 Bg4 | Nf6 g3 Bg4 English Torre defensive system (A12) |