Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bb5/3...f5/4. Nc3/4...fxe4/5. Nxe4/5...d5/6. Nxe5/6...dxe4/7. Nxc6/7...Qd5/8. c4/8...Qd6/9. Nxa7/9...Bd7/10. Bxd7/10...Qxd7/11. Qh5

All of Black's moves in this position look terrible! 11...Qf7?? runs into 12.Qb5+. Moving the king out to e7 also loses at least a pawn to 12.Qe5+. The computer recommends 11...Kd8 as the least bad option, although White could then swing the queen over to a5 threatening Nc6+ and so forcing the king straight back to e8, while potentially saving a tempo by not having to move the knight immediately.

So the modern, active way of defending this position as Black is with 11...g6!? It doesn't sacrifice a whole rook, "only" an exchange, because White hasn't got time to capture on h8 and also save the knight.