Chess opening · ECO D00
Blackmar-Diemer Gambit Accepted: Teichmann Defense
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1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bg4
Blackmar-Diemer Gambit Accepted: Teichmann Defense is catalogued under ECO code D00. It is reached after 5 moves (10 half-moves): 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bg4. After the last move it is White to play. White opens 1. d4. It is a named variation of the Blackmar-Diemer Gambit Accepted, which has 22 catalogued lines in total.