Thanks qqrnprn. I had been convinced that 5...d5 6.exd5 Bd6 was a complete refutation, now I'm not so sure. It's certainly Black's best line so all analysis should probably start from this position:
1-I believe there is still a case to make for 5...Bd6 (without sacrificing the d pawn).
2-White is already facing serious problems, the two main being ...Bg5 and ...f3 (attacking c4). And even if both sides manage to castle without immediate damage, Black has a long-lasting attack on the kingside, not White.
For instance, 7.0-0 (?) Bg5 ? is a mistake because of Be2 and Black will lose castling rights due to a check, but something like this does not look thrilling for White :
Irontiger, after 5...Bd6 what will answer black to 6.Nc3( defending e4 pawn) with intention 7.d4 ?
Oops. Nothing, indeed (maybe it's playable, but not close to the other variant).
I mixed up the lines with 5...Nxe4 6.0-0 Nxf2 7.Rxf2 Bd6 (which has killed a central pawn).
This is really getting ridiculous! It's bad enough that after all these centuries, the King's Gambit, the most suspicious opening in all of chessdom, has never been satisfactorily refuted (or 'busted' as Bobby put it). Now, on top of that, this absurd knight move may not only be sound..... it might be good!? Ay caramba!
Maybe black can interpose 6...Bg4 before Bd6. It deflects the queen from the d-file, and there's some tactics on the e-file:
White stay good after 9.0-0 ( instead of 9.Nc3 ) and black can't castle ( at least - not immediately )
I'm not sure the KG in itself is suspect, but this opening, as it defies some many chess axioms, certainly is. However, like some other odd openings, proving it isn't as easy as it first seems. There have been more good ideas here than I expected and I'm grateful for them all.
I love your blog and I love your articles and the games you post. But you may be taking my comments too seriously. Calling the KG 'suspicious' is my attempt at humor. Apparently, a very inaffective attempt!
@qqrnprn: 9.O-O looks pretty good, but it's not all beer and skittles for white after 12.d4. I'm not so sure the queen can just charge off to black's queenside and try to wreak havoc without significant consequences......
I wasn't being so serious either but just wanted to emphasize the difference between the KG main lines and KG offshoots.
Here is my article on the Eisenberg Gambit. Thanks everyone.
Melvinbluestone, the things are going nice in your example for black , but 13.Re1 isn't the best white's move. I suggest 13.Bxf4 .
I'm not giving up the ghost just yet. 13.Bf4 may be better than Re1, but simply 13...Bf6 seems to hold everything for black:
Yes, i think, it is playable for white and black too. White can try also 14.g3