tpstar: 9. Nf3 e4 10. Ne5 Opening Explorer
10 ... Bd6 Opening Explorer
11. f4 exf3 12. Nxf3 Opening Explorer
11. d4 exd3 12. Nxd3 Opening Explorer
<LDJ> I used to play 10 ... Bd6 until a few years ago when one of my games was published in the state magazine, and an annotator said I should have known how 10 ... Bc5 is theoretically much better than 10 ... Bd6. However I haven't played amy games in that line since then. The idea is 10 ... Bc5 (intending 11 ... Bxf2+! 12. Kxf2 Qe5+) 11. 0-0 Qd6 pointing at h2 Opening Explorer .
After 11. f4, one of my pet lines was 11 ... 0-0 12. 0-0 Bxe5 13. fxe5 Qd4+ regaining the Pawn, although this doesn't score well in the database Opening Explorer .
After 11. d4, Black typically plays ... Qc7 followed by ... Rfd8 & ... Rab8. There are Chess Cafe articles claiming that 13. b3 & 14. Bb2 is an effective line for White, making good use of the QB while clutching the extra Pawn for the endgame Opening Explorer .