[FEN "rn1qk1nr/pp3ppp/2p1p3/3p1b2/1bPP1B2/2N2N2/PP2PPPP/R2QKB1R w KQkq"]

6. Qb3 a5 7. e3 dxc4 8. Bxc4 b5 9. Be2 Nf6 10. O-O Bd6


w b wb bw | w b wb bw

w     an



6. Qb3      an



6...a5      an



7. e3      an



7...dxc4      an



8. Bxc4      an



8...b5      an



9. Be2      an



9...Nf6      an



10. O-O      an



10...Bd6      an