This is the line that mihail Marin gives in his book beating the open games.So these are his notes and ideas. So. 3...Nc6 4.fxe5 d6!? (chessgames Opening explorer gives 4...g6 as the only move,but this isn't so bad.4...Nd4 5.Bd3 d6 6.c3 Ne6 7.exd6 Qxd6 looks promising for Black in view of his better development,but after 8.Bc2 Nf6 9.Qe2 Bxg1 10.e5! because of his pawn center he has chances for an advantage after the simplications.)bad FEN: r1b1k2r/ppp2ppp/3qnn2/4P3/8/2P5/PPBPQ1PP/RNB1K1bR 5.Bb5 (5.exd6?! Qxd6 looks to dangerous for White) 5...Bd7

click for larger view

(5...g6 6.Qe2 dxe5(6...Nge7 7.exd6 Qxd6 8.e5 Qe6 9.Nf3 ⩲) 7.Bxc6+ (7.Nf3 Qd6 8.Bxc6+ Qxc6!? 9.Nxe5 Qd6 compensation .) 7...bxc6 8.Nf3 Bg4 9.d3 ⩲)

(5...Qe7 6.Nc3 (6.d3 dxe5 7.Nf3 Bd6 8.Nc3 g6 9.Qg5 Qxg5 10.Bxg5 f6 11.Be3 Bd7 12.d4 1/2-1/2 Neffe-Stockfleth, Germany 1991) 6... Qxe5+ 7.Qxe5+ dxe5 8.Nf3 f6 9.Bxc6+ bxc6 10.Ne2 Rb8 11.b3 ⩲) In these two lines Black is in no immediate danger,but the weakness of the doubled pawns is an annoying long-term disadvantage.

(5...Nh6!? Δ Bg4 is an interesting way to achieve rapid development.6.h3 (6.exd6 Qxd6 7.c3 Bxg1 8.Rxg1 O-O compensation)6...O-O 7.Bxc6 bxc6 8.d3 f5 White has troubles stabilising the position the position,which offers Black good chances of activating his Bishops .9.Bxh6 gxh6 10.Nf3(10.Nd2 Rb8 11.0-0-0 Bd4 12.c3 Bxe5 ∞)10...Rb8 11.b3(11.exf5 Rxf5 12.Qg4+ Kh8 13.d4 Rxe5+ 14.dxe5 Nxe5 ∞)11...fxe4 12.dxe4 Qe7 13.Nbd2 Qg7 14.0-0-0 a5 compensation)

click for larger view

6.Bxc6 (6.exd6 can be met by the slightly paradoxical 6...cxd6!? opening the a5-d8 diagonal for the queen. The relative weakness of the d6 pawn is not so relavent,since Black will probably use it to undermine White's center. 7.Bxc6 (White has to strengthen the enemy's central structure. 7.c3 Qb6 8.Bxc6 Qxc6! offers Black a strong initative after 9.d3 Nf6 10.Qe2 11.Nf3 Rae8 12.Nbd2 Bg4 13.h3 d5! ∓)7...bxc6 and ...Nf6 and ...O-O with strong counterplay)6...Bxc6 7.d3(7.e6 g6 8.exf7+ Kxf7 9.Qf3+ Kg7 10.d3 d5 compensation (editors note: while Black may look good right now,his king can become exposed.A regular king's gambit and/or attacking player might like this position as White.)7.exd6 Qxd6 compensation) 7...g6 8.Qe2 dxe5 9.Nf3 Heinola-Asomaki Jarvempaa 1988 9...Qe7 Δ O-O-O with good play for Black.(Marin)

click for larger view

There is still a lot of game left to be played though Black is still weak on the dark squares on the kingside,but he has the two Bishops Chances are equal(editor)