After 3...dxe4Blackmar-Diemer Gambit players will recognize this as a position that can also result from the normal BDG sequence 1.d4 d5 2.e4 dxe4 3.Nc3 when Black plays to hold the e4 pawn with 3...f5. Diemer called this line in the BDG the Pöhlmann Defense, after one of his correspondence opponents. When I first began to play the BDG I thought this was a pretty lame defense--until I saw how strong players handled the same line in the Dutch. But if Black is a little careless, White can still get some quick wins. (When is that not true?) Here are a couple of examples. White is a Hungarian player who also plays the BDG now and then. Meszaros,Guyla - Weteschnik Kecskemet, 1994 Dutch Defense [A80} BDG, Pöhlmann Defense by transposition 1.d4 f5 2.Nc3 d5 3.e4 dxe4 4.Bf4 e6 5.f3 Nf6 6.fxe4 fxe4 7.Bc4 Bb4?!
7...Bd6 Correct--Meszaros.8.Nge2 0-0 9.0-0 Bxc3? 10.Nxc3 Nd5 11.Nxd5 exd5
12...Rxf1+ was better.; 12...Qxc7?? 13.Bxd5+ Rf7 14.Qh5 (Or 14.Rxf7 )13.Rxf8+ Kxf8 14.Qe2 Be6
14...dxc4? 15.Rf1+ Ke7 16.Qxe4+ Be6 17.Qxb7+-15.Rf1+
15...Ke7 16.h4 Qh6 17.Bf4 Qg6 18.Bg5+16.Qxe4! 1-0 Just for fun, another miniature: Meszaros,Guyla - Kriszany IM Bern, blitz, 1994 Dutch Defense [A80} BDG, Pöhlmann Defense by transposition 1.d4 f5 2.Nc3 d5 3.e4 dxe4 4.Bf4 g6 5.Be5 Nf6 6.f3 Nbd7 7.Nb5! Nxe5 8.dxe5 Nd7 9.e6 Ne5 10.Qxd8+ Kxd8 11.0-0-0+ 1-0