Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bc4/3...Nf6/4. Ng5/4...d5/5. exd5/5...b5/6. Bxb5/6...Qxd5

= Ulvestad Variation = 6 ... Qxd5. Attacking the Bishop on b5 and the pawn on g2.

Theory table
.
 * 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 b5 6.Bxb5 Qxd5

Estimated next move likelihood
Nc3 58%, Bxc6 17%, Be2 12%, Bf1 8%, Qe2 5%