D97
Grunfeld Defense: Russian Variation, Prins Variation
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Na6
The Grunfeld Defense: Russian Variation, Prins Variation is a chess opening classified under ECO code D97. It is reached after the moves 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Na6.
It belongs to the Grunfeld Defense family — one of many ways the line can branch. Understanding the parent system’s plans is the fastest way to play this variation well.
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