The Bogoljubow Defense, Studier Attack is a variation of the Blackmar-Diemer Gambit Accepted, catalogued as ECO D00. The line runs 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. O-O O-O 8. Qe1, reaching the position shown below after 15 half-moves.
White holds the centre with pawns on d4. Development is level at three minor pieces each, and Black is up a pawn of material. It is Black to move after eight moves. Both kings have castled kingside, so play tends to shift to the centre and the opposite flank.
On the Blackmar-Diemer Gambit Accepted generally: ECO D00. A chess opening with 21 known variations.
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See all 21 Blackmar-Diemer Gambit Accepted variations →
The Bogoljubow Defense, Studier Attack goes 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. O-O O-O 8. Qe1. It is a variation of the Blackmar-Diemer Gambit Accepted and is catalogued as ECO D00.
The Bogoljubow Defense, Studier Attack is ECO D00. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Blackmar-Diemer Gambit Accepted.
Stockfish evaluates the position after 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. O-O O-O 8. Qe1 at -0.86 at depth 18, which is a small but real edge for Black. 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 three minor pieces each, and Black is up a pawn of material. It is Black to move. Both kings have castled kingside, so play tends to shift to the centre and the opposite flank.