The following game (and its notes) tests the assertion that It's not a blunder if it isn't refuted - the theme song of those who play the Jerome Gambit, after all.
fehim - BlkSabb
blitz, FICS, 2013
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+
4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ g6 7.Qxe5 d6
The Blackburne Defense to the Jerome Gambit, based on the famous game, Amateur - Blackburne, London, 1885.
8.Qxh8 Qh4 9.0-0 Nf6 10.d3
Fehim, who has been playing the Jerome Gambit on FICS since at least 2005, had only encountered the Blackburne Defense once before, and that game was something he probably wanted to improve upon, as it is a story all itself.
fehim - zsifkovitspeter, blitz, FICS, 2007, continued 10.d4 Bxd4 (the "only" move for Black was 10...Bh3 11.gxh3 Rxh8 12.dxc5 Nxe4 13.cxd6 cxd6 when he would be better) 11.Be3 (Leads to a big Black advantage, while 11.Qd8 Bb6 12.Nd2 Bh3 13.Nf3 Rxd8 14. Nxh4 Bd7 would let White hold on) 11...Bd7 (Continuing the friendly "give aways," when, instead, 11...Ng4 would be crushing.) 12.g3 (Instead, grabbing the Rook with 12.Qxa8 gives White the clear advantage.) 12...Qh3 13.Qxa8 Ng4 14.Rd1 Qxh2+ 15.Kf1 Nxe3+ 16.Ke2 Bb5+ 17.Kf3 Qh5+ 18.Kf4 Qg4 White was checkmated.
After the Blackburne game, the Jerome Gambit was largely seen as busted by the Rook sacrifice - although commentary at the time, suggesting 10.Qd8, actually gave White the advantage.
10...Ng4
Previously I noted
The problem with this move is that White has 32 possible responses: 31 lead to an advantage (most of them mate) for Black. However, one leads to a win for White.As seen before, 10...Bh3 wins, RevvedUp-Hiarcs 8, blitz 2 12, 2006 (0-1, 12).
10...Ke6 led to a sustained battle in Knightpusher - MiloBot, FICS, 2011 (1-0, 47).
11.Bf4
White tried another defense with 11.h3 - 11...Bf5 (Black would consolidate, instead, with 11...Ne5 12.Nd2 Bxh3 13.Qxe5 dxe5) 12.Qxa8 (Instead, White is saved by the electric 12.Bg5!? Qxf2+ - what else? - 13.Rxf2 Bxf2+ 14.Kf1 Rxh8 15.hxg4 Bd4 16.c3 Bxe4 17.dxe4 Bf6) 12...Bxf2+ 13.Rxf2 Qxf2+ 14.Kh1 Qf1 checkmate, Kriton - Schoenwettermatt, FICS, 2013.
11...Nxf2
Black could have gone for the cheapo, 11...Bxf2+, since 12.Rxf2? (12.Kh1 is sufficient - if White can find, after 12...Bf5 13.Qxa8 Nxh2 the return 14.Qd8!? when he gets sufficient material for his Queen: 14...Qxd8 15.Bxh2 Bd4 16.c3 Be5 17.Nd2 Bxh2 18.Kxh2 Qg5 19.Rad1 Ke7 20.exf5 gxf5) Qxf2+ 13.Kh1 Qf1 is checkmate.
12.Bg3 Black resigned
The play was not over, however, for the earlier game, stampyshortlegs - blackburne, JG Tourney5, ChessWorld, 2010, continued further 12...Qh6 13.Bxf2 Bf5 14.Bxc5 Rxh8 15.Bd4 Re8 16.exf5 gxf5 17.Rxf5+ Ke6 18.Rf6+ Qxf6 19.Bxf6 Kxf6 20.Nc3 c6 21.Ne4+ Ke5 22.Re1 Kd4 23.Kf2 d5 24.Nd6 Rb8 25.Re7 Kc5 26.Nxb7+ Kb6 27.Rxh7 Rxb7 28.Rxb7+ Kxb7 29.h4 when Black resigned.
