1.Nf3 f6 2.Nd4 Nh6 3.e3 Ng4 4.f4 c6 5.Nf5 e6 6.Nxg7

Black has to find counterplay since white has a winning material advance.

Black can try:

6...h5 7.h4 (7.d4) Nf2 8.Qf3 Nd1 9.Ba6 (the king can escape via f1 if black activates the queen with ...Qa5) 9...bxa6 10. Qg3 Qa5 and 11...Qd5 threatening Qxd2 or Qxg2 and black is fine,

6...Qa5 7.Nc3.