Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bc4/3...Nf6/4. Ng5/4...d5/5. exd5/5...Na5/6. Bb5/6...c6/7. dxc6/7...bxc6/8. Qf3

= Two Knights with 8.Qf3 =

8. Qf3?!
Develops the queen and pins the c6 pawn, as ...cxb5 gives Qxa8.

This variation has become popular in light of the game Nigel Short vs Mark Hebden in which Short won convincingly. Apparently, computer analysis has suggested that Black hasn't enough compensation for the pawn. Black now faces the prospect of giving up a second pawn or the a8 Rook in order to maintain a development advantage.

Theory table
.
 * 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5+ c6 7. dxc6 bxc6

Statistics
Estimated next move likelihood Rb8 60%, Be7 11%, h6 9.5%, Qc7 7%, Bb7 7%, cxb5 3.5%, Qd5 2%