1
2
3
4
5
6
7
h8
g
f
e
d
c
b
a
7.c3: the defense that holds

Against 7.c3, IMRosen follows up with 7…Ng4 and 8…Qh4: 7 games, 79%, but Stockfish keeps White's advantage.

Recall: after 6.Be2, which move supports the …Ng4 jump?