Drag a piece to play a move, or pick one from the list. Arrow keys step through the line.
1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4 · ECO D00
Blackmar-Diemer Gambit Accepted: Teichmann Defense is a chess opening that arises after 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4. It is classified D00 in the ECO system, and the position after these moves has white to move.
This line is a variation within the Blackmar-Diemer Gambit Accepted family. The strategic ideas above describe the family as a whole; this particular line reaches them by the move order 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4.
Each of these is a named opening reached by playing on from 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4. Open any of them to load the position on the board.