hmm found this old interesting game with 4. d4 d6... Black wins, but perhaps shouldn't have done
Jules Arnous de Rivière – Adolf Anderssen
Paris, 1859
Rousseau Gambit
1 e4 e5 2 Nf3 Nc6 3 Bc4 f5 4 d4 d6 5 dxe5 fxe4 6 Qd5 Qe7 7 Bg5 Be6 8 Qxe4 d5 9 Bxd5 Bxd5 10 Qxd5 Nf6 11 Bxf6 gxf6 12 O-O fxe5 13 Nc3 Qd6 14 Nb5 Qxd5 15 Nxc7+ Kd7 16 Nxd5 Bd6 17 Rad1 Raf8 18 Nd2 Kc8 19 c3 Bb8 20 b4 Rf7 21 b5 Nd8 22 Rfe1 Rhf8 23 f3 Rg7 24 Re4 b6 25 a4 Ne6 26 a5 Kb7 27 axb6 axb6 28 Rc4 Rd8 29 Ne4 Nf4 30 Nef6 Rxg2+ 31 Kh1 Rb2 32 Rg1 Nxd5 33 Nxd5 Rd7 34 Nf6 e4 35 Re1 Rxh2+ 36 Kg1 Rg7+ 37 Kf1 Rh1+ 38 Ke2 exf3+ 39 Kd2 Rg2+ 40 White resigns.
Originally posted by jaenischfanAfter 4...d6 white can play 5.Ng5 and after 5...Nh6 - 6.d5! (with idea Ne6) and white will get advantage
hmm found this old interesting game with 4. d4 d6... Black wins, but perhaps shouldn't have done
Jules Arnous de Rivière – Adolf Anderssen
Paris, 1859
Rousseau Gambit
1 e4 e5 2 Nf3 Nc6 3 Bc4 f5 4 d4 d6 5 dxe5 fxe4 6 Qd5 Qe7 7 Bg5 Be6 8 Qxe4 d5 9 Bxd5 Bxd5 10 Qxd5 Nf6 11 Bxf6 gxf6 12 O-O fxe5 13 Nc3 Qd6 14 Nb5 Qxd5 15 Nxc7+ Kd7 16 Nxd5 Bd6 17 Rad1 ...[text shortened]... 5 Rd7 34 Nf6 e4 35 Re1 Rxh2+ 36 Kg1 Rg7+ 37 Kf1 Rh1+ 38 Ke2 exf3+ 39 Kd2 Rg2+ 40 White resigns.