Diemer–Duhm Gambit

The Diemer - Duhm Gambit (DDG ) is a chess opening, either with the trains (see also: Chess notation)

The Gambit is assumed if Black plays 3 ... dxe4, the main line continues with 4 Nb1 - c3 - f6 Ng8 5 f2 -f3. After 5 f2 -f3, the gambit is divided into three main variants, the variant Kmoch 5 ... Bf8 - b4, the Keres variation 5 ... c7 - c5 and the Exchange Variation 5 .. e4xf3.

The name goes back to the opening of the German chess player Andreas Duhm (1883-1975), who introduced it 1907-1911 in local and remote chess into practice. 1948 turned the German champion Emil Joseph Diemer, the "father " of the Blackmar - Diemer Gambit, Gambit at this for the first time.

The Diemer - Duhm Gambit is a double-edged opening, which is based similar to the Blackmar - Diemer Gambit on the resulting white attack. However, Diemer himself held in the French defense the Alapin gambit ( 3 Le3 ) for more, playing mainly against the Caro -Kann opening the Diemer - Duhm Gambit.