Monday, February 24, 2014

Jerome Gambit: A Battle (Part 1)




After a series of Jerome Gambit games where either my opponent or I (once, both) blundered away our Queens (I will spare Readers, but include the games in The Database), I played the following exciting adventure.

As the nursery rhyme goes (the two characters can also be found in Lewis Carroll's chess-themed Through the Looking-Glas and What Alice found There)

Tweedledum and Tweedledee
    Agreed to have a battle...  

After playing almost 500 Jerome Gambit games, I again found myself in quite a battle. 

perrypawnpusher  - vermifugo
blitz, FICS, 2014

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


4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6


Black was looking to hold on to both extra pieces.

7.Qf5+ Kd6 8.f4 g6 

This is not Black's best play, even if it conjurs up visions of the venerable Blackburne Defense (6...g6). Yet it leads to largely unexplored territory, and play can become very uncomfortable for White if he is not careful. It is worth exploring more in depth.

9.Qxe5+ Kc6 10.Qxh8 

At this point, the game UNPREDICTABLE - zaboulef, blitz, FICS, 2010 ended with Black's resignation. 

The earliest game (of four) that I have with this variation in The Database is perrypawnpusher - spontex, blitz, FICS, 2009 (½-½, 59), where White bypassed capturing the Rook and went after the Black King, instead, with 10.Qd5+. As I noted in "The Opponent",
It was better to take the Rook, although play remains complicated, if in White's favor.
10...d6

The more aggressive 10...Qh4+ (also reminiscent of Blackburne's play in his 1885 game) was seen in Ghandybh - DVBLTTN, Online chess, 2009 (1-0, 17). As I noted,
The problem is that Black's Kingside will fall apart faster.
Best for Black seems to be 10...Qe7.

11.Qxh7

What to do?

I have found my Queen at h8, early in the game after grabbing a Rook, about 25 times, and I have always feared it getting trapped, and eventually captured (see the introductory note to this game, although they refer to different lines of play). My first thought has always been to get Her Majesty out of confined spaces!

One lesson I should have learned from a closer look at Blackburne's Defense is that White's Queen often escapes through the middle of the board (after a well-timed Qd8) - or after blocking the diagonal of Black's dark-squared Bishop with d2-d4.

In the current game, White's best was 11.d4.

Yet, that is not the end of the discussion, as Black has several possible replies, including the straight-forward 11...Bb6, seen in UNPREDICTABLE - farhadk, blitz, FICS, 2009 (1-0, 21).

What is more fun to look at is 11.d4! Bh3!?, when Black continues to play in Blackburne style. Can White actually then take the Bishop with 12.gxh3 ?  If he does, he can face, among other things, the energetic counter-attack 12...Qh4+ 13.Kd1 Nf6!? 14.Qxa8 Qh5+




Analysis diagram





Here, Black has sacrificed a couple of Rooks for a couple of pawns, but it is hard for White to escape a draw - while avoiding checkmate (remember, this is a blitz game). 

Analyze with me (and Houdini): 15.Ke1 (Not 15.Kd2 Nxe4+ 16.Kd3 Qf3+ 17.Be3 [17.Kc4 d5#] 17...Nf2+ 18.Kd2 [18.Kc4 Qe2+ 19.Kb3 Qb5+ 20.Kc3 Qb4#; 18.Kc3 Qxe3+ 19.Kc4 d5#] 18...Ne4+ 19.Kd3 draw) 15...Qh4+ 16.Ke2! (16.Kf1 Bxd4 17.Ke2 Qf2+ 18.Kd3 Qf3+ 19.Kxd4 Qxe4+ 20.Kc3 Nd5+ 21.Kd2 Qg2+ 22.Kd3 Qf3+ 23.Kd2 draw; 16.Kd2 Qf2+ 17.Kd1 [17.Kc3 Qxd4+ 18.Kb3 Qb4#; 17.Kd3 Qxd4+ 18.Ke2 Qf2+ 19.Kd1 Qf3+ 20.Kd2 Nxe4+ 21.Ke1 Bf2+ 22.Kf1 Bg3+ 23.Kg1 Qf2#; 16.Kd1 Qh5+ 17.Ke1 Qh4+ 18.Ke2 as in the main line17...Qf3+ 18.Ke1 [18.Kd2 Nxe4+ 19.Ke1 Qxh1+ 20.Ke2 Qg2+ 21.Kd3 Qf1+ 22.Ke3 Qe1+ 23.Kf3 Qd1+ 24.Kxe4 Qxd4+ 25.Kf3 Qf2+ 26.Kg4 Qg2+ 27.Kh4 Bf2#] 18...Qxh1+ 19.Ke2 [19.Kf2 Nxe4+ 20.Ke2 Qg2+ 21.Kd3 Qf1+ 22.Ke3 Qf2+ 23.Kd3 Qxd4+ 24.Ke2 Qf2+ 25.Kd3 Qf1+ 26.Kxe4 Qe2+ 27.Be3 Qxe3#] 19...Qxh2+ 20.Kd1 Qg1+ 21.Ke2 Qg2+ 22.Ke1 Qxe4+ 23.Kd1 Qf3+ 24.Ke1 Bxd4 25.c4 a6-+) 16...Qh5+ 17.Kd3! Qf3+ 18.Be3! Qxe4+ 19.Kd2 (Not as strong is 19.Ke2 Bxd4 20.Re1 Qxe3+ 21.Kd1 Qf3+ 22.Kc1 Qxf4+ 23.Nd2 Be3 24.Rxe3 Qxe3 25.c4 Qe1+ 26.Kc2 Qxa1 27.Qf8 Qxa2 28.Qxf6 Qa4+ 29.Kc3 Qa5+ 30.Kd3 Qh5 31.Qf3+ Qxf3+ 32.Nxf3) 19...Qg2+ (19...Qxh1? 20.Nc3!? Qxa1 21.dxc5 Qh1 22.Qxa7 Qg2+ 23.Kc1 Qh1+ 24.Nd1) 20.Kc3 Qe2 21.b4! Qxe3+ 22.Kb2 Bxd4+ 23.c3 Qe2+ 24.Kb3 Qe6+ 25.Ka3 Qe3 26.Ka4! Nd5 27.Qg8 b5+ 28.Ka3 Bxc3 29.Qa8+ Kd7 30.Qxd5 Bxa1+ 31.Qb3 and it looks like White may survive. What a mess!

All of the above suggests that White should answer 11.d4! Bh3!? with the sober 12.0-0!, when his King will be safe, and all of Black's problems - down the exchange and two pawns, unsafe King, two Bishops hanging - will remain. The computer suggests 12...Nf6 13.Qxd8 Bxd4+ 14.Kh1 Rxd8 15.gxh3 Nxe4, but what fun is there in that?

11...Bg4?! 

Development toward the enemy King, but more to the point would have been 11...Qe8! and White would have to give back a couple of pawns to free his Queen - again, while negotiating some very complex play (without Houdini's help, which I had after the game) - 12.e5 (12.d3 Nf6 13.Qh4 Nxe4!? 14.Kf1 Bf2 [14...Nf2 15.b4 g5 16.Qh7 Bg4 17.Nc3 Bxb4 18.Qg7 Nxh1 19.Rb1 a5 20.a3 Bc5 21.d4 unclear, perhaps even] 15.g3 Bc5 16.h3 g5 17.fxg5 Qf7+ 18.Bf4 Qd5 19.Rh2 Bf5 20.g4 Bg6 21.dxe4 Qxe4 22.Nd2 Qxf4+ 23.Rf2 Qe5 24.Nf3 Qxb2 25.Re1 Qxa2 26.Rfe2 b5 even, whew!) 12...dxe5 13.f5 Bxf5 14.Qh4± but White is still uncomfortable, say after 14...e4 15.b3 Rd8 (15...Qe5 16.Nc3 Nf6 17.Bb2 Ng4 18.0-0-0 Bf2 [18...Nf2 19.d4] 19.Qg5 Bd4 20.Rhf1 Nxh2 21.Rf4) 16.Bb2 Qd7! 17.Qf4 g5 18.Qe5 b6 19.b4 Bxb4 20.0-0 Bc5+ 21.Kh1. 


[to be continued]

Saturday, February 22, 2014

Opening Innovation Resource


Adventurous chessplayers looking for innovations in their openings should hurry to the Bruno's Chess Opening Articles link on this page, where whey will find a feast of interesting ideas put together by Yury V. Bukayev, Moscow (маэстро Букаев Юрий Вячеславович, Москва).

Here is a list of inventions, current as of today's post (but growing). Surprise an opponent today!

Vienna game C26 theory: reflectogen No.1: bomb!  

C28 Vienna game? 4.Nf3! (Italian V) Discovery  [auxiliary]

Four knights game: bomb! C42 Petrov’s defence  [auxiliary]

Giuoco pianissimo C50 theory: strong gambits!

Italian game: four knights variation C50: bomb 1  

Giuoco piano: four knights variation C50: bomb 2  

Evans gambit C51,C52 & new gambit, C50: bomb1  

C54/C50,C53 Italian [giuoco piano] Discovery 1  

Italian game C54/C50,C53 ['modern' GP] Bomb 2  

Two knights defence C55-C59 theory Nc3!: bomb!  [auxiliary]

C46,C47 Four knights (Bc4! Italian) Discovery 1

Italian variation C46,C47/C55! Discovery 2

C50 Hungarian: old Steinitz defence jC62 idea N!

Modern bishop’s opening C55, 2 knights: bomb 1  


Two knights defence c57: Fritz variation: bomb!

C57: new strong gambit: chess opening analysis 2  

C63 Yanish [Schliemann Defence] Discoveries  

C70 Morphy: Schliemann defence deferred: bomb!  

D35, D36 [Exchange Variation] Discovery 1

D38,D51 [Westphalia Variation] Discovery 1  

D38 Ragozin Variation [Defence] Discovery 1  

D39 Vienna Variation [Ragozin] Discoveries  

D50, D51 Queen’s Gambit [QGD] Discoveries  

D52 [Cambridge Springs defence] Discovery 1

Queen's gambit declined QGD theory: bomb!

English opening theory? 1.c4 e6! bomb in QGD


Thursday, February 20, 2014

This is Your Brain. This is Your Brain on the Jerome Gambit...


There's always something interesting about a Bill Wall Jerome Gambit game. The following game has several enlightening points, but the most enduring one for me is the sad career of Black's light-squared Bishop that never leaves home, and is hardly ever able to - a tell-tale sign that the second player is in trouble. 

Wall, Bill - Dad88
PlayChess.com, 2014

1.e4 e5 2.Nf3 Nc6 3.Bc4 h6 


The Semi-Italian Opening.


4.O-O Bc5 5.Bxf7+ 


The Semi-Italian Jerome Gambit.


5...Kxf7 6.Nxe5+ Nxe5 7.d4 




I was surprised to see that Houdini prefers this to 7.Qh5. Of course, Bill has played that, too. See Wall,B - Castro,S, Chess.com, 2010 (1-0, 23) and Wall,B - Guest473534, PlayChess.com, 2011 (1-0, 21).


7...Bb6


Or 7...Bxd4 as in Wall,B - Merdiyev,F, Chess.com, 2010 (1-0, 17), Wall,B -Foman, Chess.com, 2010 (1-0, 16) and Wall,B -Ratebabb, Chess.com, 2010 (1-0, 28).


8.dxe5 Ne7 9.Nc3 c6


Bill suggests, instead, a step toward castling-by-hand with 9...Rf8.


10.Qh5+


He also offers 10.Kh1 followed by 11.f4.


10...Ng6


Casually giving the piece back, probably unintentionally.


11.Qf5+ Kg8 12.Qxg6 Qf8 13.Ne2 Qf7




14.Qg3 


As an alternative, Bill mentions 14.Qxf7+ Kxf7 15.Be3. It is worth extending that line one move further, with 15...Bxe3 16.fxe3+. White's advantage in material then consists of tripled, isolated e-pawns, but they help him dominate the board






analysis diagram






14...Kh7 15.b3 Rf8 16.Bb2 Qg6 17.Qd3 a5 18.Ng3 a4 19.Nf5 axb3

Black would have done better to open his position with 19...d5 20.exd6 Bxf5 21.exf5 Qxf5 22.Qxf5+ Rxf5, as Bill notes. 

20.axb3 Rxa1 21.Bxa1 Rd8 22.Nd6 


Keeping things clamped down.

22...Bc5 23.Rd1 

Or 23.Nxc8 Rxc8 24.Qxd7, but it seems a shame to relieve Black's light-squared Bishop of its misery. 


23...Rf8 


Making his own threat of 24...Rxf2. The alternative, 23...Bxd6 24.exd6 Re8 seems self-punishing. 


24.Nf5 Qe6 
25.h3 g6 26.Nd6 Bxf2+ 

Better says Bill, is 26...Rxf2


27.Kh2 Bc5  


Missing the line in the game that allows for winning simplification. His last try to hold on was 27...Qe7 28.Nxc8 Rxc8 29.Qxd7 Rc7


28.Nxc8 Rxc8 29.Qxd7+ Qxd7 30.Rxd7+ Kg8 31.Rxb7 Re8 32.Rc7 Re6 33.g4 Be3 34.Kg3 Black resigned




The end may be a ways off, but it is inescapable.

Tuesday, February 18, 2014

Breaking News!


Chessfriend Julio Alberto González (NotiChess Ediciones, Web: www.notichess.com.ar, Email: notichess@gmail.com) has published his "NotiChess Diario" newsletter (with chess news, games and tactical puzzles) since early 2005.

His website has recently been discontinued, but he will continue to publish the NotiChess Journal (and with it, the "Club del Gambito Jerome").  

If you are interested, he will send via email - every day - the NotiChess Journal (with PDF, PGN and CBV files), for free.

You may subscribe to the NotiChess Group, at: https://ar.groups.yahoo.com/neo/groups/NotiChess/info

Highly recommended.

Sunday, February 16, 2014

Another Delayed Jerome Gambit


In the following game Black's pieces do not know what to do with White's advancing pawns, and so decide to retreat and jump out of the way - leaving the field open for White's Queen.


Philidor1792 - bichara22
Casual Game Online chess portal http://ch (1), 2013

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Bb3 Bc5 5.Bxf7+



Another delayed Jerome Gambit, as in Philidor 1792 - guest1063, blitz 3 0, www.bereg.ru, 2013 (1-0, 37) and Philidor 1792 - guest3, 3 0 blitz, www.bereg.ru, 2013 (1-0, 22).


5...Kxf7 6.Nxe5+ Nxe5 7.d4 Re8 




Black'smove is reasonable, but there is only one other example in The Database, Cossyphus - HarryPaul, blitz, FICS, 2004 (0-1, 33)


8.0-0 Bd6 9.f4 Ng6 10.e5 Be7 11.f5 Nh4 12.Nc3 Ng8



The "Jerome pawns" advance, scattering all resistance.


13.Qh5+ g6 14.Qxh7+ Kf8 15.fxg6+ Black resigned




Friday, February 14, 2014

A Delayed Jerome Gambit

How does that horror movie voice-over go? "Just when you thought it was safe to play ...Bc5...

In the following 3-minute game Philidor 1792 is so interested in playing the Jerome Gambit that he is willing to drop a tempo (4.Bb3) in order to allow Black another chance to play ...Bc5. The defender, apparently suspicious of the "free" pawn on e4, ignores the capture and moves right along with White's plans.

Philidor 1792 - guest3
3 0 blitz, www.bereg.ru, 2013

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Bb3 Bc5 5.Bxf7+ 



5...Kxf7 6.Nxe5+ Nxe5 7.d4 

It should be noted that long-time Jerome Gambit Gemeinde member jfhumphrey has been arriving at this position with the tempo-eating 4.d3 and 7.d4; while equally-dedicated HauntedKnight has encountered 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5 Nxe5 6.d4 Nf6!? (leaving White a tempo up on the text game) on a number of occasions. Both Jerome Gambiteers play on the Free Internet Chess Server (FICS) and their games can be found in The Database.

Philidor 1792 has been here as well, in Philidor 1792 - guest1063, blitz 3 0, www.bereg.ru, 2013 (1-0, 37)

7...Nxe4 8.Qh5+ Ng6 9.Qd5+ Ke8 10.dxc5 Qe7 



11.0-0 c6 12.Qd4 d5 13.cxd6 Nxd6 14.Bd2 Qe5


Black, perhaps under-estimating the "strength" of White's Bishop's one-step, perhaps overly-focused on White's Queen (it happens in blitz), misses the "bigger picture".

15.Re1 Nf7 16.Nc3 Bf5 17.Rxe5+ Nfxe5 18.Re1

Encore!

18...Rd8

Collapsing.

19.Rxe5+ Nxe5 20.Qxe5+ Kf7 21.Qxf5+ Ke7 22.Bg5+ Black resigned


Wednesday, February 12, 2014

The Evans Jerome Gambit Declined

Philidor 1792's gambit play is out-running my naming nomenclature! In the game below, Black manages to decline the Evans Gambit, but accepts the Evans Jerome Gambit. I think...


Philidor 1792 - guest344
3 0 blitz, www.bereg.ru, 2013

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 




The Evans Gambit. This time, Black declines the pawn.


4...Bb6 5.b5 Na5 6.Bxf7+ 




The Evans (Declined) Jerome Gambit?!


6...Kxf7 7.Nxe5+ Kf8 8.Bb2 


Varying from 8.d3 as in Philidor 1792 - guest2019, 3 0 blitz, www.bereg.ru, 2013 (1-0, 33) and 8.Qf3+ as in Philidor 1792 - guest343, 3 0 blitz, www.bereg.ru, 2013 (1-0, 41). 


8...Qh4 9.Qe2 Nf6 10.d3 d6 11.Nf3 Qh5 12.Nbd2 Kf7 13.0-0 Re8 




14.Rfe1 d5 15.e5 c6 16.a4 Bg4 17.h3 Bxf3 18.Nxf3 Re6



This gives White a target, and his pieces quickly swing into action.


19.Qd2 Nd7 20.Ng5+ Ke7 21.Nxe6 Kxe6 22.Bc3 Black resigned