Blackmar-Diemer Gambit: Diemer-Rosenberg Attack

1.
1. d4
2. d5
2.
3. e4
4. dxe4
3.
5. Be3

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The Blackmar-Diemer Gambit: Diemer-Rosenberg Attack is a chess opening classified under ECO code D00 (Closed & Semi-Closed games). It is a variation of the Blackmar-Diemer Gambit family. Step through the moves on the board above, then play the line yourself or review it with the built-in engine.