The game quickly becomes as sharp and as theoretical as any modern opening line.
AsceticKingK9 - blackburne
ChessWorld, JG6 tournament, 2011
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, harking back to Amateur - Blackburne, London, 1885. See "Nobody Expects the Jerome Gambit!"
Not surprisingly, the modern "blackburne" has played this sacrificial line as well. See "blackburne as Blackburne with black".
8.Qxh8 Qh4 9.0-0
An alternative, but still complicated, line of play (see "Update: Blackburne Defense") is preferred by Houdini (who prefers White): 9.d4 Nf6 10.Nd2 Bxd4 11.0-0 Ng4 12.Nf3 Qxf2+ 13.Rxf2 Bxh8 14.Ne5+ Kg8 15.Nxg4 Bxg4 16.c3 Bg7 17.Be3 Re8 18.Re1 Rxe4 19.Rf4 Rxf4 20.Bxf4 Kf7 where Black has the two Bishops and a pawn for the exchange.
9...Nf6 10.Qd8 Bh3
Having sacrificed one Rook, Black now offers the other.
Not quite as strong is 10...Bb6 as with 11.e5 White frees his Queen: 11...dxe5 12.Qd3 e4 13.Qc3 Nd5 14.Qg3 Qf6 15.Nc3 Nxc3 16.dxc3 Be6 17.a4 Rc8 18.Re1 Bf5 19.a5 Bc5 20.Bg5 Qc6 21.Be3 Bd6 22.Bf4 Bxf4 23.Qxf4 h5 24.h3 Qf6 25.g4 hxg4 26.hxg4 Be6 27.Rxe4 g5 28.Qg3 Bd5 29.Re5 Be6 30.Rae1 Re8 31.Qd3 Kg7 32.Rxe6 Rxe6 33.Qd7+ Black resigned, Wall,B - Foo,N, Palm Bay, FL, 2010.
11.Qxc7+
Of course, 11.Qxa8? would have led quickly to mate after 11...Qg4.
Equally disastrous was the related 11.g3 Qxe4 12.Qxc7+ Kf8 White resigned, Siggus - toe, FICS, 2007.
11...Kf8
The proper retreat square, not 11...Kg8 12.Qxb7 Qg4 (12...Re8 13.d4 d5 14.gxh3 Qxh3 15.Qb3 Qg4+ 16.Qg3 Qxe4 17.dxc5 Black resigned, Hiarcs 8 - RevvedUp, blitz 2 12, 2006) 13.Qb3+ and White won, Chandler,G - Dimitrov,T, 5 minute special game, 2004.
12.Qxb7
The critical position.
White is ahead the exchange and four pawns, and threatens to grab a Rook – with check. Still, he should realize that he is on the defensive.
Black's pieces are very active, but the best he can do now is to force White to sue for peace with checks and repetitions.
12...Re8
Instead, 12...Qg4, threatening mate, seems essential.
White's only viable response is to grab the Rook, and then check like crazy, for example, 13.Qxa8+ Kf7 14.Qb7+ (14.e5 d5 and Black will mate) 14...Kf8 15.Qa8+ draws by repetition.
13.gxh3 Qxh3
Black probably figured that with mating threats like ...Nf6-g4 and drawing threats like ...Qh3-g4+-f3+ he would be okay.
White does not give him a chance, however.
14.e5 Rxe5 15.Qg2
Dumping cold water on the attack. When White gets his pieces developed, his extra Rook will tell.
15...Qf5 16.d3 Re2 17.Bh6+ Kf7 18.Nd2 Rxd2 19.Bxd2 Ke6 20.Qb7 Ng4 21.Rae1+ Kf6 22.Qe7 checkmate
