SWJediknight wrote on 09/26/12 at 12:51:35:
With some assistance from Rybka I have found another possibility for Black (apologies if someone else found it earlier in the thread).
The point is that with 5...Nge7, Black avoids the transposition to the Belgrade Gambit with 5...Nf6, and the main advantage of this is that 6.Bg5 is hit by 6...f6. I feel that White is able to get some, but not enough, compensation for the pawn.[...]
My "intended solution" was
5.Qh5 Bb4+ 6.Nxb4 Nxb4 7.Qe5+ Ne7 8.Bd3 0-0 9.Qxd4 Nec6 10.Qc3 d5 11.Ne2 Re8 12.f3 Nxd3+ 13.cxd3 dxe4 14.dxe4 f5 15.0-0 fxe4 16.fxe4 Rxe4 17.Ng3. Since 17...Qd4+ 18.Qxd4 Rxd4 19.Bf4 Be6 20.Bxc7 leads to an equal position, Black might prefer 17...Re8 18.Bf4 Be6 19.b3, but I thought that White has enough compensation for the pawn. - Okay, this line is drawish, but nevertheless somewhat disappointing for White.
I had embraced 5.Qh5 because I wasn't sure about
5.Nf3. However, after checking your analysis, the latter move could indeed be White's best option:
5...Nge7 6.Bc4 Nxd5. Your proposal, but isn't this just a transposition to the Belgrade Gambit? 7.exd5 Qe7+ 8.Be2 (instead of your continuation 8.Kf1) 8...Nb4 9.0-0 0-0 10.c3 Nxd5 11.Re1, about =.
Can Black avoid to go into the Belgrade?
6...0-0 7.Bg5 Kh8 looked good at first, but White has a surprise:
8.Nf6!. For example: 8...h6 9.Bxh6 d5 10.Bg5 dxc4 11.Nd2! g6 12.Qf3 Bb6 13.Qg3 Kg7 14.Nh5+ Kh8 15.Nf6 = Kg7 16.Qh4!? Rh8 17.Ne8+ Kg8 18.Nf6+, draw.
White has a third option:
5.a3 Nf6 (5...Nge7 6.b4; 5...a5? 6.Qh5)
6.Bg5 Be7 7.Bxf6 Bxf6 8.Qd2 0-0 9.0-0-0 Re8 10.f3, when the computer suggests the amusing 10...Bg5!? 11.f4 Bf6 12.e5 Bh4 13.g3 Be7 =.
SWJediknight wrote on 09/26/12 at 12:51:35:
I can certainly see merit in this Fyfe Gambit analysis, as we've already seen that the lines 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d4 and 4.0-0 Nf6 5.d4 were under-rated by theory for a long time, so how about 2.Nc3 Nc6 3.d4? It seems playable enough for casual and blitz games, but if White is after a reasonably sound d4-gambit then the Italian/Max Lange lines are better. For this reason I doubt that the Fyfe Gambit will ever gain much popularity.
Disagreements about risky openings will remain. Is 1.c4 g5 +0.70 or +0.30? Hard to say. However, it is easier to achieve consensus about the relative merits of openings. When you say: Soller-Gambit < Hübsch Gambit < BDG, I'll agree, and it seems possible that Bibs and Markovich would agree, too. - So what you are saying in effect is: Fyfe Gambit < Max Lange Gambit. I'd agree and add: German Ouch Gambit < Bulgarian Ouch Gambit < Fyfe Gambit. But where in this relation-chain belongs the Belgrade Gambit? I'd say it is very close to the Fyfe Gambit in my present "relative order". So if the Belgrade can be played otb, why not the Fyfe?