Sunday, January 20, 2013

Jerome Gambit Doctor


Periodically in this new year we will be looking at different lines in the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) and be providing ideas (and study material) which may deliver "first aid" or heavier "fixes" in situations where White's play has been injured.

Here is a game by HauntedKnight, a regular player of things Jerome. He has 144 games in The Database, scoring an over-all 49%, which is the over-all average for White in those 27,400 games. With the Jerome Gambit proper he scores 42%, which is comparable to the 43% of all Jerome Gambit games in The Database.


HauntedKnight - Josue

standard game, FICS, 2012

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 



4...Kxf7 5.Nxe5+ Nxe5 6.d4 Be7 




Josue, the higher-rated player, chooses a very reasonable, if unpopular line. The Database has only 12 games with this move, but White has scored only 38% against it.


7.dxe5


White avoids the ostentatious 7.f4 which brings a lot of visual excitement, but more "flash" than "bang": 7...Nc6 8.d5 Nb4 9.a3 Na6 10.0-0 Nf6 11.e5 Ne8 12.Qh5+ g6 13.Qh6 Bf8 14.Qh3 d6 15.e6+ Kg7 16.b3 Be7 17.f5 Nf6 18.Bb2 c6 19.c4 cxd5 20.Nd2 dxc4 21.Ne4 Nc5 22.Nxf6 Bxf6 23.Bxf6+ Qxf6 24.bxc4 b6 25.Qg3 Bb7 26.Qxd6 Rad8 27.Qf4 Rd4 28.Qe3 Re4 29.Qd2 Rd8 30.Qf2 g5 31.Rad1 Red4 32.Qf4 Rxf4 White resigned, wirerabbit - SimpleOne, FICS, 2007


7...d6


Alternatives include:


7...g6 8.Qd5+ Kg7 9.b3 h5 10.Bb2 Kh7 11.Nd2 c6 12.Qd3 d6 13.exd6 Bf6 14.e5 Bg7 15.0-0-0 Bf5 16.Qe2 Be6 17.h3 b5 18.g4 h4 19.f4 Bd5 20.Ne4 Bxe4 21.Qxe4 Qa5 22.Kb1 Rd8 23.g5 Nh6 24.gxh6 Bxh6 25.f5 Rhg8 26.Rhg1 g5 27.f6+ Rg6 28.e6 Qb6 29.e7 Rxd6 30.e8Q Rxd1+ 31.Rxd1, Black resigned, gollydali - Letranite, FICS, 2011;


the sturdy 7...Nh6 8.Qd5+ (8.Qh5) 8...Kf8 9.Bxh6 gxh6 10.Nc3 c6 11.Qd3 d6 12.Qf3+ Kg8 13.0-0-0 Bg4 14.Qxg4+ Kf8 15.Qf4+ Ke8 16.e6 Bg5 17.Qxg5 Qxg5+ 18.Kb1 Qxg2 19.Rhg1 Qxe4 20.Nxe4 Ke7 21.Rxd6 Rhg8 22.Rxg8 Rxg8 23.c4 Rg4 24.Rd7+ Kxe6 25.Nc5+ Kf6 26.Rxb7 Rxc4 27.Nd3 Rd4 28.Kc2 Rh4 29.Rxh7 Rxh2 30.Kc3 Kf5 31.b4 a6 32.a4 Ke4 33.Re7+ Kd5 34.Re5+ Kd6 35.f4 h5 36.Rg5 h4 37.Kc4 Rc2+ 38.Kd4 h3 39.Rh5 h2 40.Rh6+ Kd7 41.Nc5+ Kc7 42.Rh7+ Kb6 43.Rb7 checkmate, exatapalov - MeTaLoV, FICS, 2011;


the solid 7...Ke8 8.0-0 h6 9.Qg4 Bf8 10.Qg6+ Ke7 11.Nc3 c6 12.Be3 Qe8 13.Qd6+ Kd8 14.Qd4 Kc7 15.Bf4 Qe6 16.Rad1 a6 17.Na4 b5 18.Qb6 checkmate, CoachCrupp - tuffnut, FICS, 2008;


and the overly-casual 7...Nf6 8.exf6 Bxf6 returning the piece 9.0-0 Re8 10.e5 (10.Qd5+) Rxe5 11.Bf4 Re7 12.Qh5+ Kg8 13.Bg5 Bxg5 14.Qxg5 d6 15.Qh5 Re5 16.Qf3 Qe7 17.Nd2 Bd7 18.Nc4 Rf8 19.Qb3 Be6 20.Rfe1 Rxe1+ 21.Rxe1 Qf6 22.Ne3 Qxf2+ 23.Kh1 Qxe1+ 24.Nf1 Qxf1 checkmate, Howtocastle - svadali, FICS, 2003. 


8.Qf3+ 


Probably best, although after 8.exd6 White had interesting play 8...Qxd6 9.Qe2 (9.Qf3+ Nf6 10.0-0 Bg4 11.Qb3+ Be6 12.Qxb7 Rhb8 13.Qa6 Qxa6 14.Nc3 Qxf1+ 15.Kxf1 a6 16.Be3 Ng8 17.Rd1 Rxb2 18.Bd4 Rxc2 19.Ne2 Bc4 20.Kg1 Bxe2 21.Re1 Bb5 22.f4 Rd8 23.Bf2 Rdd2 24.Bg3 Rxg2+ 25.Kh1 Rgd2 26.e5 Bc6+ 27.Kg1 Bc5+ 28.Kf1 Bg2 checkmate, Idealist - fake, FICS, 2000) 9...Be6 10.Nc3 Nf6 11.0-0 Rhf8 12.e5 Qc6 13.exf6 Bxf6 14.Qh5+ Kg8 15.Be3 Bxc3 16.bxc3 Qxc3 17.Qh4 b6 18.Bd4 Qc4 19.c3 c5 20.Rac1 cxd4 21.cxd4 Qxa2 22.Qg5 Rf7 23.f4 Raf8 24.Rcd1 Qd5 25.Kh1 Qxg5 26.fxg5 White resigned, stretto - ifufocop, FICS, 2007 (26); 


Aggressive was 8.Qh5+ g6 9.Qf3+ Ke8 10.Nc3 c6 11.0-0 (11.Bf4) dxe5 12.Rd1 Qc7 13.Qg3 Nf6 14.Be3 Be6 15.Bh6 Rd8 16.Qf3 Rxd1+ 17.Rxd1 Kf7 18.Bg5 Rd8 19.Rxd8 Qxd8 20.Bxf6 Bxf6 21.h4 h5 22.Qe2 b5 23.Nd1 a5 24.Qe1 a4 25.Ne3 Bxh4 26.b3 Bg5 27.f4 Bxf4 28.Nf1 Kg7 29.g3 Bg5 30.c4 bxc4 31.bxc4 Bxc4 32.Qb4 Bxf1 33.Kxf1 Qd3+ 34.Kg2 Qd2+ 35.Kh3 Qxb4 36.a3 Qxa3 White forfeited on time, Stockholm - MorphyLives, FICS, 2007. 


8...Ke8 


9.Be3 


Alternatives:


9.Qh5+ g6 10.Qf3 dxe5 11.Nc3 Be6 12.0-0 c6 13.Be3 Nf6 14.Rad1 Qc7 15.Bh6 Bg4 16.Qd3 Bxd1 17.Rxd1 Rd8 18.Qc4 Rxd1+ 19.Nxd1 Qd6 20.Nc3 Qb4 21.Qe6 Qxb2 22.Bg7 Qc1+ White resigned, quixote - RRustyy1, Chess.com, 2012


9.exd6 Qxd6 10.Bf4 Qb4+ 11.Nd2 Qxb2 12.0-0 Nf6 13.Bxc7 Bg4 14.Qd3 Rc8 15.Nc4 Qb5 16.Nd6+ Bxd6 17.Qxd6 Nxe4 18.Rfe1 Be2 19.Qe6+ Kf8 20.Qxe4 Rxc7 21.Rxe2 Kf7 22.Qf4+ Kg6 23.Re5 Qb2 24.Qg5+ Kf7 25.Rae1 Qb6 26.Qf4+ Qf6 27.Rf5 g5 28.Qxc7+ Black resigned, jfhumphrey - JeversonM, FICS, 2012


9.e6 Bxe6 10.Nc3 Nf6 11.0-0 Rf8 12.Qg3 Nh5 13.Qd3 Nf4 14.Bxf4 Rxf4 15.Nd5 Bxd5 16.exd5 Rh4 17.Rae1 Qd7 18.Re6 Kf8 19.Qf3+ Kg8 20.Rfe1 Re8 21.Qe3 Rh6 22.Rxh6 gxh6 23.Qxh6 Bf8 24.Qg5+ Bg7 25.Rf1 Qe7 26.Qg3 Qe2 27.f3 Qxc2 28.Qg4 Qg6 29.Qd7 Re2 30.Qc8+ Bf8 31.Qh3 Rxb2 32.f4 Rxa2 33.f5 Qg5 34.f6 Qxd5 35.f7+ Kh8 36.Qg3 Qd4+ 37.Kh1 Qg7 38.Qf3 c5 39.h4 c4 40.Qxb7 c3 41.Qf3 c2 42.h5 Rb2 43.Kh2 c1Q 44.Rxc1 Qe5+ 45.Kh3 Qe6+ 46.Kh2 Rb4 47.Qc3+ Qe5+ 48.Qxe5+ dxe5 49.Kh3 Kg7 50.Rf1 h6 51.g4 a5 52.Rf5 Rb3+ 53.Kh4 Be7+ 54.g5 Bxg5+ 55.Kg4 Rb4+ 56.Kf3 e4+ 57.Ke2 Rb2+ 58.Kd1 Kf8 59.Rxa5 Kxf7 60.Rf5+ Ke6 61.Rf8 Ke5 62.Re8+ Kd4 63.Rd8+ Ke3 White resigned, jfhumphrey - fischbroetchen, FICS, 2011


Probably best is 9.Bf4 dxe5 10.Bxe5 Nf6 11.0-0 Bd6 12.Bd4 c5 13.e5 cxd4 14.exd6 Qxd6 15.Re1+ Kf8 16.Na3 Kg8 17.Nc4 Qc6 18.Qb3 Be6 19.Rxe6 Qxe6 20.Qxb7 Rf8 21.b3 h5 22.Qxa7 Qg4 23.h3 Qf4 24.Re1 Rh7 25.Re7 g5 26.Rxh7 Nxh7 27.a4 Qxf2+ 28.Kh2 Rf7 29.Qa8+ Kg7 30.Qd5 g4 31.hxg4 hxg4 32.Qd6 g3+ 33.Qxg3+ Qxg3+ 34.Kxg3 Ng5 35.Kh2 Ne4 36.g3 Rf2+ 37.Kh3 Rxc2 38.Kg4 Rc3 39.Kf4 Rxb3 40.Ne5 Rb4 41.Ng6 Rxa4 42.Ne7 Kf7 43.Nf5 Nxg3 44.Nd6+ Ke7 45.Nf5+ Ke6 46.Nd6 Kd5 47.Kg4 Kxd6 48.Kg5 drawn, soonFM - vessoj, FICS, 2005.


9...Nh6


Black is planning something wicked, a threat that shows up in several of the above games. Probably his best move was 9...dxe5.


10.Nc3 


It is prudent to note here that White can take the draw with 10.Bxh6 gxh6 11.Qh5+ Kf8 12.Qf3+ Kg7 13.Qg3+ Kf7 14.Qf3+ Kg8 15.Qb3+ Kg7 16.Qg3+ Kf7, etc.


If White wants to play on, it would seem that 10.Qh5+ Nf7 11.exd6 followed by 12.Nc3 would be best.


10...Bg4 


The unhappy point: White will lose his Queen.


11.Qg3 Bh4 12.Qf4 Rf8 13.Qxf8+ Kxf8 




White continued the fight, but it was too much. 


14.g3 Bg5 15.f4 Be7 16.Kf2 Qe8 17.h3 Bd7 18.Ke2 dxe5 19.fxe5 Qh5+ 20.Kd2 Bg5 21.Rae1 Bxe3+ 22.Rxe3 Qxe5 23.Kc1 Kg8 24.Rd1 Bxh3 25.Rd5 Qf6 26.b3 Rd8 27.Rc5 Qf2 28.Nd5 Rxd5 29.Rec3 Rxc5 White resigned






Friday, January 18, 2013

All that is necessary...


It has been said that "All that is necessary for the triumph of evil is that good men do nothing". Relating this to the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+), it can be said that while there are many ways for the opening to fail (it is refuted, after all), the most effective way for White to lose is to play tepidly.

We have looked at the play of RRustyy1 (see "Toss 'Em in The Database" and "Another Puzzler") in the 2nd Jerome Gambit Race at Chess.com. Here is one of his wins, with Black.


DeDrijver - RRustyy1 
2nd Jerome Gambit Race, Chess.com, 2012

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 




4...Kxf7 5.d3 d6 6.h3

This passive play may be a psychological ploy to encourage Black to over-reach his counter-play, but it already looks a bit "iffy".

6...Nf6 7.Bg5 h6 8.Bxf6 Qxf6 9.c3 Rf8 10.Nbd2 Ke8



Black has decided to not-castle-by-hand (otherwise 10...Kg8) while White's plan, at least for now, is not to self-inflict further injury (beyond 4.Bxf7+).

11.Qe2 Be6 12.g4 g5 13.Rf1 Kd7


14.Rd1

Possibly planning on trapping Black's Bishop, but it does not work out. Watch how this leads to the unraveling of his position.

14...Bxa2 15.b3 Qe6 16.c4 Na5 17.Ra1 Nxb3 18.Nxb3 Bxb3 19.Rb1 Ba4

20.Rxb7

This attempt to recover one of the two lost pawns goes awry.

20...Bb6 21.Qa2 Bc6 22.Rxb6 axb6 23.Qb3

Allowing more loss.

23...Rxf3 24.Ke2

At this point as I was playing over the game, the wise guy Houdini 2 announced a checkmate in 18 moves. White is down a Rook and a Bishop and would be okay striking his colors.

24...Bxe4 25.Rd1 Rxh3 26.Qb5+ Bc6 27.Qb2 Bf3+ 28.Ke1 Rh1+ 29.Kd2 Rxd1+ 30.Kc3 Qxg4 31.Qb5+ c6 32.Qb3 Qd4+ 33.Kc2 Qxf2+ 34.Kc3 Qd2 checkmate



Wednesday, January 16, 2013

Just Like That


Sometimes a Jerome Gambit game unfolds rather simply, as jfhumphrey shows in the game below.

jfhumphrey - chalomaria
blitz, FICS, 2012

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 


4...Kxf7 5.Nxe5+ Nxe5 6.d4 Bd6 



I was surprised to see this "reasonable" move appear 64 times in The Database. White scores 67% against it.

7.dxe5 Bxe5 8.Qd5+ Kf6 9.f4 Qe7 10.fxe5+ Qxe5 11.O-O+ Black resigned

Black will lose his Queen and/or be checkmated.

graphic by Jeff Bucchino, The Wizard of Draws

Monday, January 14, 2013

Whazzat?


The following game is played at lightning speed, where just about anything can happen. Black's improvised defense to the Jerome Gambit costs a Rook, but there are plenty of moves to play in the game - all of them quickly.

Petasluk, a regular Jerome Gambiteer, has a better feel for the resulting positions, can find his moves faster - and can outlast his opponent.


Petasluk - otllz
lightning, FICS, 2012

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 



4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ g6 7.Qxe5 Be7 


We have seen this defense previously (e.g. Mrjoker - parseltongue, blitz, ICC, 2008, [1-0, 15]) and it is not as sturdy as either Blackburne's Defense, 7...d6 or Whistler's Defense, 7...Qe7.

8.Qxh8 Nf6 9.Qxd8 Bxd8 10.d3 d5 



White is up the exchange and a couple of pawns, but that is small potatoes in a lightning game. He has to keep making good moves.

11.e5 Ng4 12.f4 Bh4+ 13.g3 Be7 14.Nc3 c6 15.O-O Bf5 16.Kg2 h5 17.h3 Nh6 18.Bd2 Rg8 



19.Rae1 Be6 20.Ne2 Nf5 21.Rf3 h4 22.g4 Nh6 23.Nd4 Bc8 24.f5 



The "Jerome pawns" put on the pressure.

24...gxf5 25.Nxf5 Nxf5 26. Ref1 Black forfeited on time 



After 26...Ke8 27.Rxf5 Bxf5 28.Rxf5 White will be a couple of protected passed pawns up.

Saturday, January 12, 2013

CYWAT?



The Jerome Gambit is full with psychological ploys. With 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+  the first player announces "Welcome to the Jerome Gambit". Black, for his part, can immediately (if not strongly) respond "No thank you" with 4...Kf8.

Typical is Black's plan with 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ g6 7.Qxe5 when 7...Bxf2+ 8.Kxf2 Qf6+ forces the exchange of Queens. Black abandons his material advantage - actually, going down a pawn - to take the excitement out of the position and ask his opponent "Can you win against this?"

We have also recently seen how annoying "The Annoying Defense" - curiously, quite popular among computer programs which are supposedly bereft of "psychology" - can be.

Below, Bill Wall's opponent returns some of his material advantage,  remaining with a Rook against a Knight and a pawn, and posing the question "Can you win against this?"

Wall,B - Filipmihov 
FICS, 2012

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 


4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Kf8 




7.Qxe5 d6 8.Qg3 Nf6 9.d3 

Bill has also played 9.Nc3, in Wall,B - Ahmadi,S, Chess.com, 2010,(0-1, 59)

9...Ng4

Also seen: 9...Kf7 as in Wall,B - Badbeat994, Chess.com, 2010 (1-0, 48); and 9...Be6 as in Wall,B - Milsrilion, Chess.com, 2010 (1-0, 50).

Black has a specific idea in mind.

10.0-0 Qf6 11.c3 Bxf2+ 12.Rxf2 Qxf2+ 13.Qxf2+ Nxf2 14.Kxf2 Be6 

Can you win against this?

15.Nd2 Ke7 16.Nf3 Rhf8 17.h3 Rf7 18.Bg5+ Kd7 19.Kg3 h6 20.Bd2 g5 21.Rf1 Raf8 

22.c4 c6 23.b4 b6 24.c5 g4?!

He probably should have grabbed the a-pawn.

25.hxg4 Rg8 26.g5 hxg5 27.Rh1 g4 28.Ng5 Re7 29.cxd6 Kxd6 30.Rh6 Kd7 31.a4 Bf7 

Black's aggression on the Kingside has not yielded anything. In the meantime, White's pieces have become more active, and he has a protected passed pawn at e4. White is for choice here.

Now Black's attention slips.

32.a5 b5?! 33.Bf4 Rg6??

Rybka 3 recommends 33...Bg6 34.Kxg4 Reg7, with White better.

34.Nxf7 Rxh6 35.Nxh6 c5 36.bxc5 Kc6 



37.Nf5 Re8 38.Bd6 Rd8 39.Nd4+ Black resigned



Thursday, January 10, 2013

Another Puzzler


As previously mentioned, the top scorer in the 2nd Jerome Gambit Race at Chess.com was RRustyy1, with a score of 6 wins and two losses, clearly ahead of oleppedersen and Jordi-I, each with 4 wins and 4 losses. Curious was one of the losses the leader experienced: take a look, as it is interesting to see what each player saw (and overlooked), and it is unclear what White observed at the end.

RRustyy1 - oleppedersen
2nd Jerome Gambit Race, Chess.com, 2012

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 



4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 7.f4 Nf6 



This apparently knee-jerk reaction will cost Black two pieces.

8.Qxe5+ Kf7 9.Qxc5 d6 10.Qe3 



10...Re8

It is interesting that here and in none of the games in The Database did Black snap off the e-pawn with 10...Nxe4. To protect against this move, Houdini 2 suggests an odd line of play instead of 10.Qe3 for White: 10.Qb5 a6 11.Qb3+ Be6 12.Qf3 Bg4 13.Qg3 h5 14.d3 h4 15.Qf2 h3 16.Nc3 Qe7 17.Bd2 c5 18.Rg1 Rae8 19.gxh3 Rxh3 20.Rg3 Rxg3 21.Qxg3 Qd7 22.Be3 Kg8 23.f5 b5 with advantage to the first player.

11.d3 b6  12.Nc3

Running similar risks with the Queen and King on the same file. Prudent was 12.0-0 Kg8 13.Qg3.

12...Kg8 


Finding safety for his King. Stronger was 12...d5, taking advantage of the pin on the White e-pawn.

13.Bd2 c5

There was still time for 13...d5 and an equal game.

14.0-0-0 

14...d5 

Still good.

15.Qf3 

Played too quickly, as Black shows.

15...Bg4 16.Qg3 Bxd1 17.Rxd1 dxe4 18.Nxe4 Nxe4 19.dxe4 Rxe4 



White has a pawn for the exchange. The game is roughly equal.

20.Bc3 Qe7 21.Be5 Re8 22.Qf3 Ra4 



23.b3 White resigned.

It is difficult to explain White's sudden capitulation, unless he was upset over having missed 23.Qb3+, winning Black's Rook. In the game, even after 23...Rxa2, White would not be worse.

Tuesday, January 8, 2013

Update: Old Dog Can Still Bite


Most chess players, if they have ever heard of the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+), know of the game Amateur - Blackburne, London, 1885, where the British master dismantled the opening and then destroyed it with a Queen sacrifice. They have a pretty good assessment of the Blackburne Defense, 4...Kxf7 5.Nxe5 Nxe5 6.Qh5+ g6 7.Qxe5 d6!?, giving up the Rook to distract, and, eventually trap out of play, White's Queen.

Players more familiar with the Jerome Gambit may have seen analysis that indicates that White, not Black, is better in this line.

Players very familiar with the Jerome Gambit may have seen analysis that indicates Black can draw, or force a draw, in a very, very complicated position.

All of which suggests that White can be happy when facing the Blackburne defense - if he knows what he is doing. Otherwise, that old dog is likely to bite, as in the following game.

burraburra  - rsiemon
blitz, FICS, 2012

1.e4 e5 2.Bc4 Nc6 3.Nf3 Bc5 4.Bxf7+ 




4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ g6 7.Qxe5 d6 




8.Qxh8 Qh4 9.g3

White's Queen-escape line is, instead, 9.0-0 Nf6 10.Qd8 Bb6 11.e5 dxe5 12.Qd3.

This seems a lot saner than 9.d4, e.g. 9...Nf6 (or 9...Qxe4+) 10.e5 dxe5 11.Nd2 Bxd4 12.0-0 Be6!? when there is plenty of madness in the position after 13.Nf3 (or 13.Qxa8 Bd5 14.Qc8 Ng4 15.Qxc7+ [15.Nf3 Bxf3 16.Qxc7+ Kg8 17.Qc4+ Kf8 18.Bh6+ Qxh6 19.Qc8+ Ke7 20.Qc7+ etc] 15...Ke8 16.Nf3 Bxf3 17.Bf4 Bxf2+ 18.Kh1 Qh3 19.Qc8+ Ke7 20.Bg5+ Kf7 21.Qxg4 Qxg4 22.Rxf2 Qxg5 23.Rxf3+ Kg7 24.Re1) 13...Bxf2+ 14.Rxf2 Qxf2+ 15.Kxf2 Rxh8 16.Nxe5+. The game is even, if White survives.

However, the text in the game, 9.g3 wins - for Black.

9...Qxe4+ 10.Kf1 Qxh1+


Or 10...Bh3+, Black resigned, facing 11.Kg1 Qg2# as in LukeWarm - blackburne, Jerome Gambit Thematic, 2010.


11.Ke2 Qe4+ 12.Kd1 Bg4+ 13.f3 Bxf3 checkmate


graphic by The Wizard of Draws