Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bc4/3...Nf6/4. Ng5/4...d5/5. exd5/5...Nxd5/6. Nxf7/6...Kxf7/7. Qf3/7...Ke6/8. Nc3/8...Nb4

=Fried Liver Attack=

8. Nb4
Defending d5 with tempo and preparing c6. White can either sacrifice the rook with 9. a3, with unclear compensation, or defend c2 with 9. Bb3. White should be able to gain back some material and has a strong initiative, but is down a knight and black has survived the attack.

Theory table
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 * 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nxd5 6. Nxf7 Kxf7 7. Qf3+ Ke6 8. Nc3 Ncb4