Modern Defense (Robatsch) – Main Line
Black allows White to occupy the center and plans a later counterstrike with ...c5, ...d5, or direct piece pressure.

Line preview
28 moves in the full line
1.e2-e4
g7-g6
2.d2-d4
f8-g7
3.b1-c3
d7-d6
4.g1-f3
c7-c6
…and 20 more moves
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