Searching for improvements in play against the ...Ng6 defense to the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+), the computer grabs a pawn – and has to struggle mightily not to fall to a crushing counter-attack.
Crafty 19.19 - RevvedUp
blitz 2 12, 2006
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+Ng6

7.Qxc5 Nf6 8.0-0

Crafty 19.19 prefers safeguarding the King over protecting the King's pawn, as 8...Nxe4 could be met with 9.Qd5+
8...d6 9.Qe3 Rf8

Likewise, RevvedUp castles his King by hand.
The alternative Rook placement on the e-file has been seen: 9...Re8 10.d3 ( 10.Nc3 d5 11.d3 d4 12.Qf3 dxc3 13.bxc3 Ne5 14.Qg3 g6 15.Bg5 Kg7 16.Qh4 Rf8 17.f4 Nf7 18.e5 Nxg5 19.exf6+ Kg8 20.fxg5 Bf5 21.Rfe1 Rf7 22.Re5 Qd6 23.Qd4 Qa6 24.Rae1 Qxa2 25.c4 Qxc2 26.Re8+ Rf8 27.f7+ Kxf7 28.R1e7+ Kg8 29.Qg7 checkmate, blackburne - Sir Osis of the Liver, www.chessworld.net 2008) 10...Ng4 ( 10...d5 11.f3 Bd7 12.Qf2 Kg8 13.Bg5 Bb5 14.Bxf6 Qxf6 15.Nc3 Bc6 16.exd5 Bxd5 17.Nxd5 Qxb2 18.Nxc7 Rec8 19.Nxa8 Rxc2 20.Qg3 Qd4+ 21.Kh1 Qxd3 22.Qb8+ Nf8 23.Qxb7 Qg6 24.Qb3+ Kh8 25.Rg1 Qc6 26.Rab1 Rc3 27.Qf7 Qxa8 28.Rb7 Ra3 29.Qxg7 checkmate, perrypawnpusher -MoonCat, FICS, 2007) 11.Qe2 Qh4 12.h3 N4e5 13.f4 Nd7 14.Nc3 c6 15.f5 Nge5 6.d4 Nf6 17.dxe5 Black resigned, Schlenker - Sfrd, from Randspringer
The thematic 9...d5 was also possible.
Now Crafty 19.19 goes pawn-hunting, allowing RevvedUp to unleash a powrful attack.
10.Qb3+ Be6 11.Qxb7 Kg8 12.Nc3 Ng4 13.h3 Nxf2 14.Rxf2 Rxf2 15.Kxf2 Qh4+ 16.Kg1 Rf8 17.Nd1
As I've mentioned (see "Jerome Gambit: Don't open that door!") sometimes when I play over a Jerome Gambit game, I secretly root for Black... Here RevvedUp is pounding his adversary (who is rated over 1,000 points higher than he is).

It was not obvious at blitz speed that Black had a mate-in-9 here: 17...Nf4 18.Qa6 Qg3 19.Ne3 Nxh3+ 20.Kh1 Qe1+ 21.Nf1 Rxf1+ 22.Qxf1 Qxf1+ 23.Kh2 Nf4 24.Kg3 g5 25.d4 Qxg2 checkmate. He still has the better game after the text, though.
18.Qb3+ Be6
A humorous echo of move 10! However, after the safer 18...Kh8 the computer cannot escape mate.
19.Qxe6+ Kh8 20.d3 Qe1+

Good enough for the win, but 21...Rf1 instead was crushing.
22.Qd5 h6 23.Qe6 Rf1

Tough guy! Why not sac a piece?
24.Qxg6 Rh1+ 25.Kg3 Qe1+ 26.Kg4

26...Rh4+
Arrrgh! How unfortunate: 26...Qf2, hemming in the enemy King and threatening the pawn at g2 was the move that still won.
But this is blitz, and such things happen.
Crafty 19.19's King can escape – into enemy teritory – and RevvedUp is done for.
27.Kf5 Qf1+ 28.Ke6 Qf8 29.Kd7 Rh1 30.Kxc7 Qe7+ 31.Kc6 Rf1 32.Bg5 Qf8 33.Rxf1 Qxf1 34.Be3 Black resigns

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