Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bc4/3...Nf6/4. d4/4...exd4/5. O-O/5...Nxe4/6. Re1/6...d5/7. Bxd5/7...Qxd5

= Scotch Gambit Accepted =

7...Qxd5
Qxd5 recaptures the bishop. Now the only sensible response by White is Nc3, using the d1 to d5 pin and the e1 to e8 pin to fork the queen and double attack the knight.

As mentioned, the only move for White is 8. Nc3.

Theory table

 * 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4.d4 exd4 5. O-O Nxe4 6. Re1 d5 7. Bxd5 Qxd5