Jerome Gambit: On the Way to Victory

Here is another fine win from the top player in the recent RedHotPawn.com Jerome Gambit tournament.

SeinfeldFan91 - junnujannu
Jerome Gambit Tournament, RedHotPawn.com, 2016

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6

7.Qd5+ Ke8 8.Qxc5 d6 9.Qe3 Nf6 10.O-O Qe7 

11.Nc3 c6 12.d4

Also seen in this position:

12.d3 Ng4 13.Qe2 Qh4 14.h3 N4e5 15.f4 Nf7 16.Bd2 Qe7 17.Rae1 Kd8 18.Qh5 Qh4 19.Qa5+ b6 20.Qb4 Kc7 21.d4 a5 22.Qc4 Qe7 23.Nd5+ Kd7 24.Nxe7 Kxe7 25.Qxc6 Bd7 26.Qxb6 Rab8 27.Qxa5 Rxb2 28.f5 Nh4 29.e5 dxe5 30.Qc5+ Kf6 31.dxe5+ Black resigned, shugart - volki, FICS, 2013; and

12.f4 Kd8 13.d4 Kc7 14.f5 Nf8 15.e5 dxe5 16.dxe5 Ng4 17.Qd4 Nh6 18.f6 gxf6 19.Bf4 Black resigned, Wall,B - HeHe, Chess.com, 2010.

12...Be6

Development (with a subtle flaw).

Black has also attacked the Queen, as a prelude to a push on the Kingside: 12...Ng4 13.Qg3 h5 14.h3 h4 15.Qd3 Nh6 16.f4 Kd8 17.Bd2 Bd7 18.Rae1 Kc7 19.f5 Nf8 20.Qc4 Kb8 21.Bf4 b5 22.Qc5 Nf7 23.a4 Kb7 24.Qa3 a5 25.axb5 cxb5 26.Nd5 Qd8 27.Bxd6 b4 28.Bxb4 axb4 29.Qxb4+ Kc8 30.Nb6+ Kc7 31.Nxa8+ Qxa8 32.Rf3 Rh6 33.Rc3+ Rc6 34.Rxc6+ Bxc6 35.Qe7+ Nd7 36.Qxf7 Qa5 37.c3 Qa2 38.Qxg7 Qxb2 39.d5 Qxc3 Black resigned, mrjoker - Mandragora, Internet Chess Club, 2009.

13.b3

To deny c4 to the Black Bishop. Also possible was 10.f4. 

13...b6 14.f4 Nf8 

Black has to do something about the threatened fork of his two pieces. Probably he should return the piece with 14...Bf5 15.exf5 Qxe3+ 16. Bxe3 Ne7 getting the Queens off of the board.

15.Qg3

White's threat is e4-e5, and he should probably enforce it directly with 15.Ba3!? and 16.Rae1. He eventually does this, but first he has to address Black harassing his Queen.

15...Nh5 16.Qf3 Nf6 17.e5 Nd5 18.Ba3

The text is okay, although White could have worked to blow things up right away with 18.f5!? Again, he finds the move later.

18...Nxc3 19.Qxc6+ Qd7 20.Qxa8+ Kf7 

White has 3 pawns and a Rook for 2 pieces (one of which he will recover immediately) - as well as an attack on the enemy King. 

21.f5 Ne2+ 22.Kh1 Bxf5 23.Qe4 Ng3+

One of the pieces has to go. Black returns the Knight with a spite check.

24. hxg3 Kg6 25.Qa8

Black resigned

Black's position is a mess, and the closer you look, the worse it appears. The Knight is pinned to the Rook, for example, and the Bishop is pinned to the Knight. The Queen's best move is 25...Qc8, to exchange Queens and get some air, but 26.Qxc8 Bxc8 27.Bxd6 has all the appeal of a root canal.

Jerome Gambit: Very Serious Business

In the current Giuoco Piano thematic tournament at Chess.com I am in first place (although this may change) and my only chance to finish on the top of the field is to win my last Jerome Gambit game - which is in the endgame stage. So far, I have 3 wins, 3 wins on time, and 2 losses with the Jerome.

I was surprised to find that I had not presented on this blog the following game with the Jerome Gambit, from the same tournament. In part this may be due to the fact that my opponent forfeited a significant number of his games - but not before he had won a full point from me. If only I had lost slower!  

perrypawnpusher - ulisimbolon
Giuoco Piano Thematic Tournament
Chess.com, 2016

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Kf8 

The is the defense played, successfully, by Alonzo Wheeler Jerome in two correspondence games against Daniel Jaeger in 1880.

Previously, I had faced 6...Kf8 31 times, winning 22 games, losing 6 games, and drawing 3; scoring 76%.

7.Qxe5 d6 8.Qg3 Nf6 9.d3 h5 

Very aggressive! Black does not worry about the position of his King, he attacks. While the move looks like a novelty, there are actually 3 earlier games in The Database.

10.Bg5 

Or 10.O-O Kg8 11.Bg5 Qf8 12.c3 Ng4 13.d4 Bb6 14.h4 c5 15.Be3 Bd7 16.Nd2 Re8 17.Rae1 Bb5 18.c4 cxd4 19.Bf4 Bc6 20.Bxd6 Qf7 21.e5 Rh6 22.Ne4 Bxe4 23.Rxe4 Rg6 24.c5 Bd8 25.Qf4 Qxa2 26.Rxd4 Qxb2 27.Rb4 Qe2 28.Rxb7 Qa2 29.f3 Nh6 30.Rf2 Qa1+ 31.Kh2 Qa6 32.Qc4+ Qxc4 White resigned,  MrJoker - PhlebasP, Internet Chess Club, 2011;

or 10.h3 Be6 11.O-O Qe7 12.Nc3 Ke8 13.Bd2 Kd7 14.Rae1 Raf8 15.a3 h4 16.Qg6 Kc8 17.Kh2 Qf7 18.Qxf7 Rxf7 19.f4 g6 20.b4 Bb6 21.Na4 Nh5 22.Nxb6+ axb6 23.Rf3 Rhf8 24.Ref1 Kd7 25.c4 c6 26.Bc1 Ke7 27.R1f2 b5 28.cxb5 cxb5 29.d4 Rc8 30.Bb2 Bc4 31.d5 Nf6 32.Re3 Kd7 33.g3 hxg3+ 34.Kxg3 Nh5+ 35.Kg4 Rcf8 36.Ref3 Nf6+ 37.Bxf6 Rxf6 38.Kg5 Ke7 39.f5 Rg8 40.fxg6 Rgxg6+ 41.Kh4 Rh6+ 42.Kg3 Rxf3+ 43.Rxf3 Be2 44.Rf4 Rg6+ 45.Kf2 Bd3 46.Rh4 Kd7 47.Rh7+ Kc8 48.Rh8+ Kc7 49.Rh7+ Kb6 50.Re7 Rh6 51.Kg3 Rg6+ 52.Kf4 Rg1 53.Rd7 Rf1+ 54.Ke3 Bb1 55.Rxd6+ Kc7 56.Re6 Rh1 57.Kd4 Rxh3 58.Kc5 Bd3 59.d6+ Kc8 60.Re8+ Kd7 61.Re7+ Kc8 62.e5 Bf5 63.Kxb5 Rxa3 64.e6 Bxe6 65.Rxe6 Kd7 66.Re7+ Kxd6 67.Rxb7 Rb3 68.Ka6 Ra3+ 69.Kb6 Rb3 70.b5 Ra3 71.Rb8 Ra1 72.Rd8+ Ke7 73.Rd4 Black resigned, MrJoker - PhlebasP, Internet Chess Club, 2012.

10...Be6

Or 10...h4 11.Qf4 Qe7 12.Nc3 Bd4 13.Nd5 Qf7 14.c3 Be5 15.Qd2 Nxd5 16.exd5 Bf5 17.d4 Bf6 18.Bxf6 Qxf6 19.O-O Re8 20.Rfe1 Kf7 21.Re3 Rxe3 22.fxe3 Qg5 23.Rf1 Kg6 24.Qf2 Re8 25.Qxf5+ Qxf5 26.Rxf5 Kxf5 27.Kf2 g5 28.h3 Ke4 29.Ke2 Rf8 30.c4 c6 31.dxc6 bxc6 32.b4 a6 33.a4 Rb8 34.b5 cxb5 35.axb5 axb5 36.cxb5 Rxb5 37.Kf2 Rb3 38.g3 hxg3+ 39.Kxg3 Rxe3+ 40.Kg4 Kxd4 41.Kxg5 Rxh3 42.Kf5 Re3 43.Kf4 Re8 44.Kf5 Kc4 45.Kf4 d5 White resigned, Petasluk - fluigi, FICS, 2009.

11.Nc3 b5 12.O-O 

Deciding that the Kingside would be safer for my monarch than the Queenside.

12...Qd7 13.Kh1 Bd4 14.f4 Ng4 15.Ne2

After the game Stockfish 7 recommended a line that shows how complicated the game is, but which would lead to only an edge for Black: 15.h3 b4 16.Nd1 Qf7 17.a3 bxa3 18.Rxa3 Bd7 19.Qe1 Re8 20.c4 Nf6 21.Bh4 Kg8 22.Bf2 Bb6 23.b4 c5 24.bxc5 dxc5 25.Bh4 Bc6 26.Nc3 Qd7 27.Qe3 a5 28.e5 a4 This kind of play is above my head.

15...Bxb2 16.Rab1 Bf6 17.d4

After the game Stockfish 7 was critical of this move, but its suggested play - giving up a pawn (eventually the exchange), allowing a passed pawn on the Queenside, opening up the h-file for Black's Rook against my King - looks like a fever dream (although it claims Black is only 3/4 of a pawn ahead at the end): 17.h3 Bxa2 18.Rbe1 Bb2 19.hxg4 hxg4+ 20.Kg1 a5 21.f5 a4 22.Qxg4 a3 23.Qf3 Re8 24.Be3 b4 25.Nf4 Kg8 26.g4 Bc3 27.Re2 Bf7 28.g5 a2 29.g6 a1=Q 30.Rxa1 Bxa1 31.gxf7+ Qxf7 32.Ng6 Rh7. Whew!

17...Bxa2 18.Rbe1 Bc4 19.e5 Bxg5 20.fxg5+ Kg8 21.Qf3 

I wish I could say that I had seen Stockfish 7's recommendation, and merely rejected it, but I had no idea: 21.h3 a5 22.Kg1 dxe5 23.hxg4 hxg4 24.dxe5 a4 25.Rf4 a3 26.Nd4 a2 27 Ra1 Qe8 28.e6 Bxe6 29.Nxe6 Qxe6 30.Qb3 Qxb3 31.cxb3 g3 32.Rf3 Kh7 33.Rxg3 Rhe8 34.Kf2 Kg6 35.Rc3 Re7 36.Rc6+ Kxg5. The computer sees Black as up 2 3/4 pawns. 

21...Re8 22.g6 dxe5 White resigned

I had been looking at 23.Qf7+ here, "winning" a Rook, when I suddenly realized that the f7 square was protected by Black's light-squared Bishop. Discouraged, and down a piece and a  pawn, I gave the game up. 

Jerome Gambit: Theory and Practice (Part 2)

Another game from Vlastimil Fejfar. His opponent fearlessly offers a piece (matching the one Vlasta offered in the opening) for active counter-play, but the followup is marred by some inaccuracies, and once again the Jerome Gambit - and the gambiteer! - triumphs.  

Vlastous 2344 - Iva 1816
ChessManiac.com, 2016

1 e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 7.Qd5+
Ke8 8.Qxc5 d6 9.Qe3 Nf6 10.Nc3 

Varying from the previous game of Vlasta's that we took a look at, which saw 10.0-0 instead.

10...Rf8 

Alternately:

10...Kf7 11.f4 (11.d4 Re8 12.O-O Bd7 13.f4 Kg8 14.f5 Ne7 15.Qf3 Nc6 16.Be3 Qe7 17.Nd5 Nxd5 18.exd5 Qxe3+ 19.Qxe3 Rxe3 20.dxc6 Bxc6 21.c4 Rae8 22.d5 Bd7 23.b3 Re2 24.f6 gxf6 25.Rxf6 Rf8 26.Rff1 Rxf1+ 27.Kxf1 Rb2 28.Re1 Kf8 29.Re3 Rxa2 30.Rf3+ Ke8 31.Re3+ Kf8 32.Rf3+ Kg7 33.Re3 Kf6 34.Rf3+ Ke5 35.Rf7 Bf5 36.Rxc7 b6 37.Re7+ Kf6 38.Re3 a5 39.h3 h5 40.Rf3 Ke5 41.Rg3 a4 42.bxa4 Rxa4 43.Rb3 Rxc4 44.Rxb6 Kxd5 45.Rb5+ Ke4 46.Rb8 d5 47.Rh8 Bg6 48.Rg8 Kf5 49.Rf8+ Kg5 50.Rd8 d4 51.Rd5+ Kh6 52.g4 hxg4 53.hxg4 d3 54.g5+ Kh5 55.Ke1 Rg4 56.Kd2 Rxg5 57.Rd8 Rg2+ 58.Kd1 Kg5 59.Rd5+ Kf4 60.Rd8 Ke3 White resigned, mrjoker - serge57, Internet Chess Club, 2008) 11...Rf8 12.O-O Ng4 13.Qg3 Kg8 14.f5 N6e5 15.d4 Nf6 16.dxe5 Nxe4 17.Nxe4 dxe5 18.Bh6 Qe7 19.f6 Qf7 20.fxg7 Qxf1+ 21.Rxf1 Rxf1+ 22.Kxf1 Black resigned, shugart - Amanchous, FICS, 2013); or

10...Be6 11.d4 Qd7 (11...Qe7 12.O-O Kf7 13.f4 Bc4 14.Re1 Rhe8 15.e5 dxe5 16.fxe5 Nd5 17.Qf3+ Kg8 18.b3 Rf8 19.Qg3 Nxc3 20.Qxc3 Bd5 21.Qe3 c6 22.c4 Be6 23.Bd2 b6 24.Rf1 Rxf1+ 25.Rxf1 Rf8 26.Rxf8+ Qxf8 27.Qf3 Qxf3 28.gxf3 Nh4 29.Kf2 Nf5 30.Be3 Nxe3 31.Kxe3 Kf7 32.Ke4 Ke7 33.d5 cxd5+ 34.cxd5 Bh3 35.f4 g6 36.a3 Bf5+ 37.Kd4 h5 38.b4 Kd7 39.a4 a6 40.a5 bxa5 41.bxa5 Kc7 42.Kc5 Be4 43.e6 Bf5 44.d6+ Kd8 45.Kd5 Bh3 46.Ke5 Bg4 47.Kf6 Bf5 48.Kf7 Bxe6+ 49.Kxe6 Ke8 50.Kf6 Kd7 51.Kxg6 Kxd6 52.f5 Ke7 53.f6+ Kf8 54.f7 h4 55.h3 Ke7 56.Kg7 Black resigned, perrypawnpusher - chesstraininglab, FICS, 2008) 12.f4 Bf7 13.f5 Ne7 14.O-O Bc4 15.Re1 Kf7 16.h3 Rhe8 17.Qf2 Nc6 18.b3 Ba6 19.Bb2 b5 20.Rad1 b4 21.e5 bxc3 22.e6+ Black resigned, MrJoker - DamjanBlazeka, Internet Chess Club, 2011; or

10...Qe7 11.O-O Kf7 12.Nd5 Nxd5 13.exd5 Qxe3 14.fxe3+ Ke7 15.d4 Bd7 16.g3 Bb5 17.Rf5 Rhf8 18.Rxf8 Rxf8 19.Bd2 Kd7 20.e4 c6 21.dxc6+ bxc6 22.d5 cxd5 23.exd5 Bc4 24.Bc3 Ne5 25.Rd1 g6 26.b3 Be2 27.Rb1 Nf3+ 28.Kg2 Ng5 29.Re1 Bf3+ 30.Kg1 Bxd5 31.Rf1 Rxf1+ 32.Kxf1 Be4 33.Bd4 a6 34.c4 Bb1 35.a3 Ba2 36.b4 Bxc4+ 37.Kf2 d5 38.Ke3 Kc6 39.a4 Ne6 40.Be5 Bb3 41.a5 Kb5 42.Bd6 d4+ 43.Ke4 Bc2+ 44.Kd5 d3 Black resigned, Haroldlee123 - Knight32, ChessWorld JG6, 2011. 

11.d4 Ng4 12.Qg3 Qf6 

Black builds his pressure on f2. Perhaps he avoided the reasonable 12...Nxf2 because of 13.O-O!? 

13.f3 h5 

Bold! Daring White to open up his King by taking the piece. (The "objective" Stockfish 7 prefers the Knight retreat 13...Nh6.)

After White chases the enemy Queen away from her attack on the pawn at d4, he accepts the piece. 

14.Nd5 Qf7 15.fxg4 Bxg4 16.Be3 Rc8 

Both Kings will remain in the center, but White's will be safer, and the first player has an extra pawn.

17.Kd2 Qd7 

This is a tactical oversight, as it un-protects his Knight, making his Bishop loathe to move.

Vlasta is quick to respond.  

18.h3 h4 19.Qxg4 Qxg4 20.hxg4 c6 21.Nc3 b6

White is clearly better.

22.Raf1 Rc7 23.Rf5 Rh8 24.Rg5 Nf8 25.d5 c5 26.Nb5 Rd7 27.Bf4 Rh6 28.Rf5 Rf6 29.g5 Rxf5 30.exf5 

30...g6

Allowing checkmate, but Black's position was untenable. White's material advantage is too great; Black's King is too vulnerable.

31.Nxd6+ Kd8 32.Rxh4 gxf5 33.Rh8 Ke7 34.Be5 Ng6 35.Re8 checkmate

Jerome Gambit Toolbox

There are a number of recurring tactical ideas in the Jerome Gambit which I like to think of as tools in a toolbox - at hand to help White construct an effective game.

perrypawnpusher - subhann

10 5 blitz, FICS, 2016

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 7.Qd5+

The "nudge", a small, but useful tool in the Jerome Gambit toolbox. A good number of opponents take time trying to figure out what the move means. White uses a tempo, but he will get it back against 7...Kf8 or 7...Ke8 if Black later castles-by-hand; while if Black chooses 7...Ke7 or 7...Kf6, his King will be in  the way of effective development.

7...Kf8 8.Qxc5+ N8e7

A relatively rare move. See "Wilderness". I have only met this once, in perrypawnpusher - Jaqueperpetuo, blitz, FICS, 2011 (1-0, 25)

9.O-O d6 10.Qe3 Be6

A bit careless, encouraging White to pull out another tool.

11.f4

Of course: the threatened pawn fork.

11...Bd7

Instead, 11...Bf7 was seen in mrjoker - cherryhead/Internet Chess Club, 2008 (1-0, 50).

White can still use the center pawn press.

12.f5 Ne5 13.d4 Nc4 14.Qd3

14...b5 15.b3 Nb6 16.f6 

The "Jerome pawn" advances to open up the enemy position. It is not immediately decisive, as White still has to complete his development to follow through on the open lines, but the advantage it provides is clear.

16...gxf6 17.Rxf6+ Kg7 18.Qf3 

18...Rf8

This move turns the game over to White. Stockfish 7, after the game, suggested 18...Bf5!? returning the extra piece, although after 19.Bg5 Bg6 20.Re6 Rf8 21.Bf6+ Kg8 22.Rxe7 Qxe7 23.Bxe7 Rxf3
24.gxf3 White would have a two pawn advantage.

19.Bh6+ 

One last tool - the Bishop check from h6.

19...Kh8 20.Rxf8+ Ng8 21.Rxd8 Rxd8 Black resigned

White wins the exchange after 22.Qf7 Nxh6 23.Qf6 Kg8 Qxd8+ with an overwhelming material lead 

What Can We Learn From the Robots?

Torneo tematico GaJero00-A  2009

                      1 2 3 4 5 6 7 8
1 Rybka 2.3.2a (2 CPU) ** 11 01 01 1½ 11 11 11 11.5/14
2 WB Nimzo 2000b       00 ** 01 11 1½ 11 ½1 11 10.0/14
3 SOS 5.1              10 10 ** 00 11 11 11 ½1 9.5/14
4 Comet B48            10 00 11 ** 10 01 11 11 9.0/14
5 Zarkov 4.70          0½ 0½ 00 01 ** 1½ 01 11 6.5/14
6 DrunkenMaster 1.2 00 00 00 10 0½ ** 10 11 4.5/14
7 La Dame Blanche 2.0c 00 ½0 00 00 10 01 ** 01 3.5/14
8 Demon 1.0            00 00 ½0 00 00 00 10 ** 1.5/14


The crosstable above is for the Jerome Gambit thematic chess tournament presented at the Scacchi64.com website, referred to in a couple of earlier posts (see "The Macbeth Attack" and "From the Scacchi64.com Jerome Gambit Thematic").

It is not surprising that the tournament leader, Rybka, had the best score with the Jerome Gambit, with 4 wins and a draw. (It climbed to the top by beating the Jerome 7-0. I know how that goes: see "Overrated!")

The next finishers - WB Nimzo, SOS and Comet - all had 3 wins. They were followed in the standings by Zarkov and DrunkenMaster, each with 1 Jerome Gambit win.

Of note, half of the games featured the "classical" 5.Nxe5+, with White scoring 34% (versus 54% in The Database) while half had the "modern" 5.0-0, with White scoring 29% (versus 38% in The Database). 

Interestingly, Rybka played 5.0-0 in all 7 of its games with White and scored 64%, WBNimzo and Comet, the #2 and #4 finishers, all played 5.Nxe5, while 3rd place finisher SOS stuck with 5.0-0.

Perhaps the most "psychological" opening move played in a winning effort - and here I mean the kind of move that would emotionally effect an opponent, if the opponent, indeed, were succeptible to feeling emotions - came in the following game.

DrunkenMaster 1.2 - La Dame Blanche 2.0c
Torneo tematico GaJero00-A, 2009

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 7.f4 d6

The "Silicon Defense", very popular with computers.

8.fxe5 dxe5 9.Qh3+ Ke7 10.Qg3 Qd4

Not the best move, but good and scary - if your opponent can be scared. I doubt that La Dame Blanche shook to its bits, but it might be a good move to try against a human!

11.Qxg7+

White blunders immediately, but surely this must be a coincidence?

Two other choices: 11.Nc3 Kf7 12.d3 Nf6 13.Rf1 Be6 14.Bd2 Rhf8 15.O-O-O Kg8 16.Nb5 Bb6?? 17.Nxd4 Bxd4 18.c3, Black resigned, MrJoker - rgiblon, Internet Chess Club, 2013; and

11.d3 (best) Kf7 12.c3 Qd8 13.d4 exd4 14.b4 Be7 15.O-O+ Ke8 16.Qxg7 Bf6 17.Qg3 Qe7 18.Bf4 a5 19.e5 Bh4 20.Qf3 axb4 21.cxd4 Qf7 22.g3 Be7 23.Rf2 h5 24.Qe4 h4 25.Nd2 Qf5 26.Qf3 Nh6 27.Nf1 Ng4 28.Ne3 Nxe3 29.Qxe3 Be6 30.Qf3 hxg3 31.hxg3 c6 32.g4 Qg6 33.Bh2 Rh4 34.Rg2 Bd5 35.Qf5 Qxf5 36.gxf5 Bxg2 37.Kxg2 Rxd4 38.Bg1 Rd2+ 39.Kf1 b3 40.f6 b2 41.Rb1 Rad8 42.Be3 Rd1+ 43.Kf2 Rxb1 44.fxe7 Rd5 White resigned, Junior 7 -Fritz 8, The Jeroen Experience, 2003.

11...Kd6

Somewhat better was 11...Ke8, 12. Nc3 Qf2+ 13. Kd1 Nf6 14. Re1 Rg8 15. Qxg8+ Nxg8 16. Ne2 Qxg2 17. d4 Bxd4 White resigned, Fritz 5.32 - Fritz 8, The Jeroen Experience 2003. 

12.Kd1

The text is better than White's other choice in the tournament: 12.d3 Qf2+ 13.Kd1 Nf6 14.Bg5 Bg4+ 15.Kc1 Be3+ 16.Bxe3 Qxe3+ 17.Nd2 Raf8 18.d4 Rhg8 19.dxe5+ Kc6 20.Qe7 Nxe4 21.Qb4 Nxd2 22.Qxd2 Qxd2+ 23.Kxd2 Be6 24.g3 Rf2+ 25.Ke3 Rf5 26.Rhe1 Rxe5+ 27.Kf2 Rf5+ 28.Kg1 Bd5 29.c4 Bf3 30.Re6+ Kd7 31.Rae1 h5 32.Re7+ Kc8 33.R1e5 Rff8 34.Rc5 c6 35.Ra5 Kb8 36.Ra3 Rg5 37.Rae3 Bg4 38.b4 Bc8 39.c5 Rd5 40.R7e5 Bh3 41.Re8+ Rxe8 42.Rxe8+ Kc7 43.Kf2 Rd2+ 44.Re2 Rxe2+ 45.Kxe2 Bg4+ 46.Ke3 b6 47.Kd4 a5 48.a3 a4 49.Kc3 b5 50.Kd3 Kd7 51.Ke3 Ke7 52.Kd3 Kf6 53.Ke4 Bf5+ 54.Kf4 Bh3 55.Ke4 Ke6 56.Kd4 Bf5 57.h3 Bxh3 58.Ke4 White resigned, Zarkov 4.70 - La Dame Blanche 2.0c, Torneo tematico GaJero00-A, 2009. 

12...Qxe4 13.h3 Qg6

14.Qxh8

This leads to checkmate in 11 moves. (These are computer chess players we are talking about.) 

14...Qh5+ 15.Ke1 Qh4+ 16.Ke2 Bxh3 17.Rxh3 Qf2+ 18.Kd3 Qf1+ 19.Ke4 Qxg2+ 20.Rf3 White resigned

There follows 20...Qg4+ 21.Rf4 Qxf4+ 22.Kd3 Qf3+ 23.Kc4 Qe4+ 24.Kc3 Qd4+ 25.Kb3 Kb4 checkmate