The Brinckmann Attack, Grünfeld Gambit Accepted is a variation of the Grünfeld Defense, catalogued as ECO D84. The line runs 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. cxd5 Nxd5 7. Nxd5 Qxd5 8. Bxc7, reaching the position shown below after 15 half-moves.
White holds the centre with pawns on d4. Development is level at two minor pieces each, and White is up a pawn of material. It is Black to move after eight moves. Black has castled while White’s king is still uncommitted; the c-file file is fully open.
On the Grünfeld Defense generally: A hypermodern defense where Black allows White a big center then undermines it with ...d5.
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The Brinckmann Attack, Grünfeld Gambit Accepted goes 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. cxd5 Nxd5 7. Nxd5 Qxd5 8. Bxc7. It is a variation of the Grünfeld Defense and is catalogued as ECO D84.
The Brinckmann Attack, Grünfeld Gambit Accepted is ECO D84. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Grünfeld Defense.
Stockfish evaluates the position after 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. cxd5 Nxd5 7. Nxd5 Qxd5 8. Bxc7 at +0.22 at depth 18, which is balanced. Engine evaluation is only a starting point — at club level the practical value of a line is mostly about whether you know its plans better than your opponent does.
White holds the centre with pawns on d4. Development is level at two minor pieces each, and White is up a pawn of material. It is Black to move. Black has castled while White’s king is still uncommitted; the c-file file is fully open.