Grünfeld Defense – Russian System
In the Russian System, White plays 4.Nf3 and 5.Qb3 against the Grünfeld, emphasizing central tension and queenside pressure.

Line preview
38 moves in the full line
1.d2-d4
g8-f6
2.c2-c4
g7-g6
3.b1-c3
d7-d5
4.g1-f3
f8-g7
…and 30 more moves
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