Blackmar Diemer Gambit is one of the hottest gambits in chess. White sacrifice pawn and in return he gets 3,4 free move. And you can imagine the situation when you castled and your opponent’s king is still in the center. This is the situation where you must win because if your opponent castles then all your advantages will vanish.

Blackmar Diemer Gambit Game 1:

[White "Blackmar Gambit"] [Result "1-0"] [ECO "D00"] [PlyCount "21"] 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Qxf3 Qxd4 6. Be3 Qb4 7. O-O-O Bg4 8. Nb5 e5 9. Nxc7+ Ke7 10. Qxb7 Qxb7 11. Bc5# 1-0 You must activate JavaScript to enhance chess game visualization.

Different Lines

Here some games with different move orders.

Blackmar Diemer Gambit Game 2:

[Event "Corr (Germany)"] [Site "?"] [Date "1955.??.??"] [Round "?"] [White "Stader, John"] [Black "Kaulich, Konrad"] [Result "1-0"] [ECO "D00"] [PlyCount "25"] [EventDate "1955.??.??"] 1. d4 d5 2. Nc3 Nf6 3. e4 dxe4 4. f3 Bf5 5. fxe4 Nxe4 6. Qf3 Nd6 7. Bf4 e6 8. O-O-O Qd7 9. g4 e5 10. gxf5 exf4 11. Re1+ Be7 12. f6 gxf6 13. Nd5 1-0 You must activate JavaScript to enhance chess game visualization.

Blackmar Diemer Gambit Game 3:

[Event "Berlin (Germany)"] [Site "?"] [Date "1996.??.??"] [Round "?"] [White "Lenz, Alarich"] [Black "Braun, Herbert"] [Result "1-0"] [ECO "D00"] [PlyCount "23"] [EventDate "1996.??.??"] [EventType "game"] 1. d4 d5 2. Nc3 Nf6 3. e4 dxe4 4. f3 Bf5 5. fxe4 Nxe4 6. Qf3 Nxc3 7. bxc3 Bg6 8. Qxb7 Nd7 9. Bb5 e6 10. Bf4 Bd6 11. Bxd6 cxd6 12. Bxd7+ 1-0 You must activate JavaScript to enhance chess game visualization.

Blackmar Diemer Gambit Game 4:

[Event "Corr (USA)"] [Site "?"] [Date "1993.??.??"] [Round "?"] [White "Purser, Tom"] [Black "Walmisley, Ray"] [Result "1-0"] [ECO "D00"] [PlyCount "23"] [EventDate "1993.??.??"] 1. d4 d5 2. Nc3 Nf6 3. e4 dxe4 4. f3 exf3 5. Nxf3 c6 6. Ne5 Nbd7 7. Qf3 Qb6 8. Bc4 e6 9. Qe2 Qxd4 10. Nxf7 Kxf7 11. Qxe6+ Kg6 12. Bd3+ 1-0 You must activate JavaScript to enhance chess game visualization.

Blackmar Diemer Gambit Game 5:

[Event "Corr (Germany)"] [Site "?"] [Date "1981.??.??"] [Round "?"] [White "Stapelford, Jurgen"] [Black "Schroer, Reinhard"] [Result "1-0"] [ECO "D00"] [PlyCount "21"] [EventDate "1981.??.??"] 1. d4 d5 2. Nc3 Nf6 3. e4 dxe4 4. f3 exf3 5. Nxf3 c6 6. Bc4 Nbd7 7. Ng5 Nd5 8. Nxd5 cxd5 9. Nxf7 Kxf7 10. Qh5+ g6 11. Qxd5+ 1-0 You must activate JavaScript to enhance chess game visualization.

Conclusion:

despite the Blackmar Diemer Gambit, in general when you castles early, you must attack your enemy’s king, and don’t let him castle, if he castles then your all opening’s advantages will vanish.