D92
Grunfeld Defense: Three Knights Variation, Hungarian Attack
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4
The Grunfeld Defense: Three Knights Variation, Hungarian Attack is a chess opening classified under ECO code D92. It is reached after the moves 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4.
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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