Blackmar-Diemer Gambit Accepted: Pietrowsky Defense
1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Nc6
The Blackmar-Diemer Gambit Accepted: Pietrowsky Defense is a chess opening line in the Blackmar-Diemer Gambit Accepted complex, reached after 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Nc6.
It is catalogued under code D00 in the Encyclopaedia of Chess Openings (ECO).
The defining move Nc6 is chosen by Black on move 5.
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