Drag a piece to play a move, or pick one from the list. Arrow keys step through the line.
Blackmar-Diemer Gambit: Diemer-Rosenberg Attack is a chess opening that arises after 1.d4 d5 2.e4 dxe4 3.Be3. It is classified D00 in the ECO system, and the position after these moves has black to move.
This line is a variation within the Blackmar-Diemer Gambit 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.Be3.