Thursday, January 8, 2009

Perhaps not every opening should be Jerome-ized...

One of these day's I'm going to have to swipe a phrase from past military commercials and say something like "The Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) – it's not a chess opening, it's an adventure!"

But, maybe not an adventure for everyone, every time...

greatapple - perrypawnpusher
blitz game 2 12 FICS, 2009
1.e4 e5 2.Qh5

There are a lot of names for this opening, perhaps the earliest being the Danvers Opening, named after a hospital (an asylum?) in New England.

Master Bernard Parham, of Indiana, has woven the move into an entirely new way of looking at chess, something he calls "the Matrix System."

Actor Woody Harrelson once played the line against Gary Kasparov. On the other hand, Grandmaster Hikaru Nakamura has played the opening against at least one GM.

2...Nf6

A fun gambit response. The earliest example I have in my database continued: 3.Qxe5+ Be7 4.Nc3 Nc6 5.Qf4 0-0 6.Be2 Bd6 7.Qe3 Re8 8.d3 Be5 9.Nf3 Bxc3+ 10.bxc3 d5 11.Nd2 d4 12.cxd4 Nxd4 13.Bd1 Be6 14.f3 Nc6 15.0-0 Qd7 16.Nb3 b6 17.Bb2 Qe7 18.Qg5 h6 19.Bxf6 Qxf6 20.Qxf6 gxf6 21.c3 Rad8 22.d4 Kh8 23.d5 Bxd5 24.exd5 Rxd5 25.Bc2 Rg8 26.Rfe1 Na5 27.Nxa5 Rd2 28.g3 Rxc2 29.Nc6 Rxc3 30.Nxa7 Rxf3 31.Re7 f5 32.Rxc7 f4 33.Rxf7 Ra3 34.Nb5 Ra5 35.Nd6 fxg3 36.h3 g2 37.Ne4 Rg6 38.Nf6 Rxf6 39.Rxf6 Rg5 40.Rf7 Kg8 41.Rc7 Rg3 42.Rd1 Black resigned, McClure - Mathewson, Boston 1905

3.Qxe5+ Be7 4.Bc4 Nc6



Black has adequate compensation for his pawn, in terms of better development and the uneasy White Queen.

5.Bxf7+


Wow!

I mean, seriously: Wow! Was I shocked!

Some people will try to Jerome-ize just about anything! (See "King of Bxf7+" for some radical examples.)

Stil, in the real Jerome Gambit there is usually an enemy piece hanging around on c5 to be captured in many lines – not so in this game. White gets hardly anything at all for his piece.

5...Kxf7 6.Qf5 d5

6...Nd4 is even stronger, and might have ended the game quicker.

7.Qf3 dxe4 8.Qb3+ Qd5


Being content to extinguish even a spark of an attack by White, I offered to go into an endgame where I had a piece-for-a-pawn advantage – plus better development, and a more active (previously: less safe) King.

Tactical maniacs will quickly see that I missed a chance to play 8...Be6, when 9.Qxb7 would have been a bad idea for White after 9...Nd4 10.Kd1 Nxc2 anyway! 11.Kxc2 Qd3+ 12.Kd1 Qf1+ 13.Kc2 Rhb8 with a crushing position.

9.Qxd5+ Nxd5 10.c3

Keeping a Knight off of either d4 or b4, but simple development with 10.Ne2 was better.

10...Nf4 11.Kf1 Nd3 12.Na3 Bc5 13.f3 Nf2 14.fxe4 Nxh1

This should be enough to win, even if the Knight never escapes.

15.b4 Bb6 16.Nf3 Nf2 17.d3 Nxd3 18.Ke2 Nde5 19.Nxe5+ Nxe5 20.Bf4

White even has an advantage in development now – but it's too late to change things. An oversight ends things.

20...Ng6 21.Rf1 Nxf4+ 22.Rxf4+ Ke7 23.Nc4 Be6 24.Ne5 Rhf8 25.Rg4 Bxg4+ 26.Nxg4 White resigns



Wednesday, January 7, 2009

The Obsolete Jerome Gambit



The year 1903 saw the publication of The Complete Chess Guide by F.J. Lee and G.H.D. Gossip. It was a large book, with "four parts in one volume": Part I - Chess Player's Mentor, Part II - Modern Chess Brilliancies, Part III - Guide to the Openings, and Part IV - Games at odds.

In the Chess Player's Mentor portion the book the authors write

We have therefore eliminated obsolete openings and confined ourselves merely to a brief examination of a dozen of the leading debuts...; omitting those openings in which the defense is declared by the most competent theorists to be weak or inferior, as for example Philidor's and Petroff's Defenses to the Kings Knight's opening; the Sicilian; the Greco Counter Gambit; Center Counter Gambit; Fianchettoes, Blackwar [sic] and Jerome Gambit, etc."
One can argue, despite Lee and Gossip's claim, that all of those openings mentioned – except the Jerome Gambit of course – are hardly obsolete today.

The exacting reader of the time might have noticed that the analysis given in the Guide to the Openings section of The Complete Chess Guide is an exact reprint of Gossip's analysis from his 1891 The Chess Player'sVade Mecum – including coverage of the Jerome Gambit! (The analysis is also the same in the 1903, 1905, 1907 and 1910 versions of The Complete Chess Guide.)

The obsolete Jerome Gambit: even when it's not supposed to be there, it's there!

Tuesday, January 6, 2009

Jerome Gambit: Drilling Down (16)



Hiarcs 8 and Revved Up are at it again, in a confusing "discussion" of the 6...Ng6 variation of the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+). Black starts out with the typical advantage that the Jerome gives him (although not as much as in other variations) and then it seems to melt, move by move, like an icicle in the sun...


Hiarcs 8 - RevvedUp
blitz 2 12, 2006

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6

7.Qd5+ Kf8 8.Qxc5+ d6 9.Qe3 Be6

10.f4 N6e7 11.0-0 Nf6
RevvedUp prefers this quieter move to Hiarc 8's choice in the last game of ...d5 (see "Jerome Gambit: Drilling Down (15)").

12.f5 Bf7 13.b3 Nc6 14.Bb2
Hiarcs 8 has adopted an interesting positional approach to the position that looks effective for White, even though Black may still retain a bit of his advantage.

14...Ke7
A provocative move, aiming to free the Rook at h8. An alternative was ...h5 at some point, using the piece on its home file.
15.d4 Re8 16.e5
16...dxe5

In this razor-sharp position, allowing 17.e6 could hardly have seemed like a good idea at the time, but it looks like Black can keep the game even with some decisive play, returning his extra piece: 16...Kf8 17.e6 Qe7 18.d5 Nxd5 19.Qf3 Nf6 20.exf7 Qe3+ 21.Qxe3 Rxd3 22.Nd2 Kxf7.
17.dxe5 Nd5
A tactical oversight
18.Qc5+ Kd7 19.e6+ Bxe6 20.fxe6+ Kxe6 21.Nc3 Nxc3
Black's King is in grave danger.

22.Bxc3 Qh4 23.Qf5+ Ke7 24.Rfe1+ Kd6 25.Rad1+ Nd4 26.Bb4+ Kc6 27.Qc5+ Kd7 28.Rxd4+ Black resigns


Hiarc 8's middle game play, while "quiet", bears further investigation.


Monday, January 5, 2009

Jerome Gambit: Drilling Down (15)





Further explorations of the 6...Ng6 defense of the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) by human and computer...

RevvedUp - Hiarcs 8blitz 2 12, 2006
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 7.Qd5+ Kf8 8.Qxc5+ d6 9.Qe3 Be6


10.f4 N6e7 11.0-0

A new move; previously seen was 11.f5 Bf7 12.d4 Nc6 13.0-0 Nge7 14.Nc3 Ke8 15.Bd2 Kd7 16.Rad1 Kc8 17.e5 Nd5 18.Nxd5 Bxd5 19.b3 Re8 20.c4 Bg8 21.Bc3 Qe7 22.e6 b6 23.d5 Nd8 24.f6 gxf6 25.Bxf6 Qf8 26.Bxd8 Qxf1+ 27.Rxf1 Kxd8 28.Qg5+ Kc8 29.Rf6 Kb7 30.Qg7 a5 31.a4 Rac8 32.g4 Ka6 33.g5 b5 34.cxb5+ Kb6 35.Qd7 Ka7 36.h4 Red8 37.Qc6 Re8 38.Qa6+ Kb8 39.Qxa5 Black forfeits on time, guest673 - guest767, ICC 2003

11...d5 12.d3 dxe4 13.dxe4 Nf6 14.Nc6
RevvedUp's King is safe, he has two pawns forward, and he is working on development.

14...Ng4 15.Qd3 Qxd3 16.cxd3 Rd8 17.Rd1 c5 18.h3 Nf6 19.Be3 b6

White still has only two pawns for the sacrificed piece, but if this were a club game, he would have plenty of chances.

20.g4

This allows an opportunity to go by, the chance to play d2-d4: 20.d4 cxd4 21.Rxd4 Rxd4 22.Bxd4 Kf7 looks more like what RevvedUp is aiming for.

20...Nc6 21.Rac1 Ke7 22.a3 Bb3 23.Rd2 Rhf8 24.Kf2 Rd7 25.e5

This turns out poorly. Probably the advance of the g-pawn, and perhaps then the f-pawn, was safer. Returning the piece is always an option for Black in the Jerome Gambit, and here it spells trouble for White.

25...Nxe5 26.fxe5 Ne4+ 27.Ke2 Ng3+ 28.Ke1 Rf1 checkmate




Sunday, January 4, 2009

Ooops...

I usually initiate challenges at the Free Internet Chess Server (FICS) but for the following game my opponent suggested first that we play. There was a 250 point rating gap between us, so I figured that I would even things out a bit by giving him "Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) odds."

The opening line was topical, which is why I present the game; but the notes will be minimal, as it turned out to be a serious mis-match.


perrypawnpusher - rodrigojalpa
blitz 2 12, FICS 2008


1.e4 e5 2.Nf3 Bc5 3.Bc4 Nc6 4.Bxf7+ Kxf7 5.Nxe5+ Ke8

An odd idea looked at in an earlier post. See "You, too, can add to Jerome Gambit theory..."

6.Nxc6

Louis Morin played an alternative twice online: 6.Qh5+ Black resigns, guest 289 - guest 5120, ICC 2 12, 2004 and 6.Qh5+ g6 7.Nxg6 Nf6 8.Qxc5 hxg6 9.d3 d6 10.Qc3 Rf8 11.Bg5 Be6 12.Nd2 a5 13.0-0 Nb4 14.a3 Na6 15.Rae1 c6 16.e5 dxe5 17.Qxe5 Nc7 18.Ne4 Ra6 19.Nxf6+ Kf7 20.Nh7 Re8 21.Bxd8 Rxd8 22.Qxc7+ Black resigns, guest2036 - guest612, ICC 2001.

6...bxc6

This routine move simply leaves White a couple of pawns up. More inspired was 6...Bxf2+ 7.Kxf2 Qf6+ 8.Kg1 Qxc6 when Black is down only one pawn.

The best choice for Black seems to be 6...Qh4, which seems to leave the game equal after 7.d4 Qxe4+ (or 7...Bb6 8.Nb4 Qxe4+) 8.Qe2 Qxe2+ 9.Kxe2 Bb6 10.Nb4 Bxd4. This is not exactly a "refutation" of the Jerome Gambit (a Jerome refutation should show Black's winning advantage), but it is a straight-forward transition to a quiet, even game, should that be Black's desire.

7.Qh5+ g6 8.Qxc5 d6

There was a pawn to be had now with 9.Qxc7 Bd7, but I decided to consolidate my game.

9.Qe3 Nf6

The rest of the game is not pretty, and in another 10 moves you can start counting the checkmates that I missed, but I'd rather draw the curtain here.

10.Nc3 Ng4 11.Qg3 Ne5 12.d4 Nc4 13.b3 Na3 14.Bxa3 Ba6 15.0-0-0 Rb8 16.e5 Rf8 17.exd6 cxd6 18.Rhe1+ Kd7 19.Qxd6+ Kc8 20.Qxc6+ Qc7 21.Qxa6+ Kd7 22.Qe6+ Kd8 23.Bxf8 Qxh2 24.Qc6 Qxg2  25.Re8 Black resigns 

Saturday, January 3, 2009

Where are all these Jeromes coming from??

Not that I'm complaining or anything, but it seems that I'm facing the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) more these days, which puts me in a bit of an awkward spot...


kavakava - perrypawnpusher
FICS rated blitz game 10 5, 2008

1.e4 e5 2.Bc4 Bc5 3.Nf3 Nc6 4.c3 Nf6 5.Bxf7+ Kxf7
Transposing into a "modern" (not including Nxe5 for White) version of the Jerome Gambit - 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.c3 Nf6. I have about three dozen examples of the c2-c3 line in my database, including my game against Kevin the Fruitbat (see "Jerome Gambit Tournament: Chaper XII").
6.Ng5+

The problem with this variation is that while White can be annoying, he needs a whole lot of cooperation before he can become dangerous – which can be said, I guess, about the Jerome Gambit in general.

6...Kf8 7.Qb3 Qe7

In defending against the mate threat I overlooked the tactical shot 7...Bxf2+ 8.Kxf2 Ng4+ 9.Ke2 Qxg5 netting a pawn.

8.0-0 h6 9.Nf3 Qf7

Safe enough was 9...Nxe4, but I figured that I had enough material to win – I wanted to get to a simpler position where I could begin to make use of it. A Queen exchange would have been a good start.

10.Qd1 d6 11.b4 Bb6 12.a4 a6 13.Nh4 Nxe4


14.d4 exd4 15.Qd3 d5 16.Be3


16...dxe3

Falling into White's "trap" and winning two pieces for the Rook. More precise was 16...Ne5

17.fxe3 Nf6 18.Ng6+ Kg8 19.Nxh8 Kxh8

Black now has three pieces for the Rook, and his King is out of the way. For the next dozen or so moves, we mostly shift pieces.


20.Kh1 Qe7 21.Nd2 Qxe3 22.Qc2 Bd7 23.Rae1 Qg5 24.Nf3 Qf5 25.Qe2 Re8 26.Qd2 Rxe1 27.Qxe1 Qe4 28.Qg3 a5 29.Nh4 Qg4 30.Ng6+ Kg8 31.Qd3 axb4 32.cxb4 Qe4 33.Qg3 d4

Finally I had an idea how to win: promote a pawn.


34.Re1 Qd5 35.Nf4 Qd6 36.b5 Ne7 37.Qh4 Ned5 38.Ng6 Bf5 39.Ne5 d3 40.Rd1

Drops a piece.

40...Qxe5 41.Qc4 Qe2 White resigns




Friday, January 2, 2009

Jerome Gambit: Drilling Down (14)






Here we have another interesting computer - human tussle, with RevvedUp offering and Fritz 8 taking the Queen's Knight Pawn, like Crafty 19.19 did (see "Jerome Gambit: Drilling Down 12"). This time Black did not whip up a devestating counter-attack, but he played mostly even until a blitz-error did him in.


Fritz 8 - RevvedUp
blitz 2 12, 2006

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6


7.Qd5+ Ke8 8.Qxc5 d6
RevvedUp is unimpressed with Fritz 8's novelty 8...Nf4 (see "Jerome Gambit: Drilling Down (13)") and plays a more main-line move. Fritz 8 is objectively worse in this position, but goes about the usual Jerome Gambit tasks.
9.Qe3 Nf6 10.f4 Kf7 11.0-0 Rf8

This is where RevvedUp likes to put his Rook. Putting it on the e-file is an alternative, but perhaps that is where the other Rook is planned to go.

12.Qb3+ Be6 13.Qxb7

He who takes the Queen's Knight pawn sleeps in the gutter...? It is not clear that this pawn grab should be recommended to Jerome Gambiteers.

13...Ne7

Avoiding the pawn fork, but perhaps 13...Qc8, with the offer to exchange Queens, might have been better. Of course, in a human vs human game, White would probably be okay with going into a Queenless middlegame with three pawns for the piece.


14.f5 Bd7 15.Qb3+ Ke8 16.Nc3 c6

17.Kh1 Qb6 18.Qa3 c5 19.d3 Bc6 20.Bf4 Kd7

The game is still fairly well balanced.

21.b3 Ng4 22.Qc1 Ne5 23.Bxe5 dxe5 24.Qg5

White switches the action to the Kingside. Black does not follow quickly enough.


24...Rg8 25.a3 a5 26.Qg3 Qc7 27.Qh3 Rh8



An oversight.


28.f6+ Kd6 29.fxg7 Rhg8 30.Rf6 checkmate