11.
B takes P: ch.
K takes B
12.
Kt to Q 5
R to K sq.
13.
B takes Kt
R takes B
14.
Kt to Kt 5: ch.
K to Kt sq.
15.
Q to R 5
P to K R 3
16.
Q to Kt 6
P takes Kt
17.
Kt to B 6: ch.
K to B sq.
18.
Kt to R 7: ch.
K to Kt sq.

And White draws by perpetual check.

The "Compromised" Defence to the Evans Gambit.
WHITE.BLACK.
1.P to K 41.P to K 4
2.Kt to K B 32.Kt to Q B 3
3.B to B 43.B to B 4
4.P to Q Kt 44.B takes P
5.P to B 35.B to R 4

By retiring the Bishop to R 4, instead of to B 4 as in the previous variations, Black reserves the option of adopting either the "Compromised" or the "Normal" Defence.

6.P to Q 46.P takes P
7.Castles7.P takes P

The capture of this, the third Pawn, constitutes the "Compromised" Defence, so called because it was formerly considered that this capture compromised Black's game.

8.Q to Kt 38.Q to B 3
9.P to K 59.Q to Kt 3

If 9. ... Kt takes P, White would win with 10. R to K sq., P to Q 3. 11. Kt takes Kt, P takes Kt. 12. Q to R 4, or Kt 5: ch., winning a piece.