English opening Agincourt variation (A13)
c4 e6 Nf3 d5
c4 e6 Nf3 d5
| English Wimpey system (A13) b3 Nf6 Bb2 c5 e3 | b3 Nf6 Bb2 c5 e3 English Wimpey system (A13) |
| English opening Agincourt variation (A13) g3 | g3 English opening Agincourt variation (A13) |