Reverting to the position after Black's 5th move, White has two other
attacks here--viz., 6. Q to B 3, and 6. P to K Kt 3.
Q to B 3
6. ----------
P to Q B 3
Q to Q B 3[101]
7. ---------------
P to B 3
B takes Kt
8. ----------
R takes B
Q takes P
9. ---------
B to K 2
{402}
Q to B 3
10. ---------
P to Kt 5
P to Q 4[102]
11. -------------
P to B 6
B to K 3[103]
12. -------------
B to K 3
Kt to Q 2
13. ---------
Kt to Q 2
With advantage for Black.