Showing posts with label ibnoe. Show all posts
Showing posts with label ibnoe. Show all posts

Wednesday, December 17, 2014

Nothing To It



Chess players who first encounter the Jerome Gambit often decide that there is nothing to it. They accept the first sacrificed piece. They accept the second sacrificed piece. They casually block White's brash Queen check with their g-pawn. Then they settle down to figure out how to play the rest of the game.

Too often, it is already too late.

perrypawnpusher - tripledubs
blitz, FICS, 2014

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


4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ g6



7.Qxe5 Nf6

Defenders familiar with the Jerome Gambit will try 7...d6 (Blackburne's Defense) or 7...Qe7 (Whistler's Defense) or some defense of their own concoction.

In the game, Black, in returning one piece, sees that his Rook is endangered, and so protects it - returning a second piece. 

8.Qxc5

White is two pawns ahead. He will be temporarily uncomfortable while behind in development (whose gambit is this, anyhow?) but his opening can be considered a success.

8...Re8

Best is 8... Nxe4 as in perrypawnpusher - LibertasProVita, blitz, FICS, 2009 (1-0, 45) and perrypawnpusher - ibnoe, blitz, FICS, 2012 (1-0, 16).

Also playable is  8... Qe7 as in perrypawnpusher - marbleschess, blitz, FICS, 2009 (1-0, 48).

A bit better than the text is 8...d6 followed by ...Nxe4 as in perrypawnpusher - MsD, blitz, FICS, 2007 (0-1, 27), perrypawnpusher - brain50, JG3 thematic ChessWorld.net 2008 (1-0, 24) and perrypawnpusher - tiagorom, blitz, FICS, 2009 (1-0, 41).

9.d3 d5

More strident than 9... d6 as in perrypawnpusher - Alternative, blitz, FICS, 2005 (1-0, 63), perrypawnpusher - andrecoenen, blitz, FICS, 2010 (1-0, 15), and perrypawnpusher - Gryllsy, blitz, FICS, 2014 (1-0, 33).

10.f3

This is an improvement over 10.O-O of Vuquoclong - VonKortez, FICS, 2013 (1-0, 22) and  10.Bg5 of UNPREDICTABLE - ornito, FICS, 2011 (1-0, 36).

10...c6 11.Bg5

Better is 11.Nc3 or 11.O-O, as the text allows Black to grab back a pawn with the combination 11...Nxe4 12.fxe4 Qxg5.

11...dxe4 12.dxe4

Thoughtless, expecting the game to "play itself". Better and more principled would be 12.fxe4 because then 0-0 would put more pressure on the Black Knight at f6.


12...Be6 13.Nc3 Kg7 14.O-O Qc7 15.Bxf6+ Kxf6



16.Rad1

Here I overlooked a nice tactic with 16.Nb5!? based on Black's pinned c-pawn, his attacked Queen, and the placement of his Rooks.

16...b6 17.Qf2 Red8 18.a3 Rd7 19.Rxd7 Bxd7 20.Rd1



So far I have been pretty good at doing nothing, but here I could have tried 20.Qh4+ Kg7 21.Qe7+ Kg8 22.Rd1. The funny thing is that I kind of get there, eventually.

20...Rd8 21.Qh4+ Kg7 22.Qg3

Cowardice. Better 22.Qe7+ Kg8 23.e5.

22...Qc8

It was probably better to exchange Queens.

23.Qe5+ Kg8 24.Qd6 Qa6 25.e5 Qc4 26.e6 Qc5+
27.Qxc5 bxc5

Black resigned

The Bishop is lost.

Friday, October 24, 2014

Faster-er and Furiouser-er


My opponent and I were playing a "normal" blitz Jerome Gambit game until we each started to make our moves too quickly. Things degenerated quickly into a state where "the winner is the one who makes the next-to-last blunder". In this case, it was me

perrypawnpusher - Gryllsy
blitz, FICS, 2014

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 




4...Kxf7 5.Nxe5+

According to The Database, Gryllsy - zagothal, blitz, FICS, 2013 continued 5.d4 Bxd4 6.Ng5+ Ke8 7.Qf3 Nf6 8.c3 Bb6 9.Be3 d6 10.Nd2 Bg4 11.Qg3 Bxe3 12.fxe3 h5 13.h3 Bd7 14.0-0 Ke7 15.Ndf3 Rf8 16.Nh4 Be6 17.Ng6+ Kd7 18.Nxf8+ Qxf8 19.Nxe6 Kxe6 20.Rf5 Qf7 21.Raf1 Rf8 22.Qf2 Ne7 23.g4 Neg8 24.g5 Nxe4 25.Rxf7 Nxf2 26.Rxf8 Ne7 27.R1xf2 Black resigned

5...Nxe5 6.Qh5+ g6 

I have a theory about this move. Some defenders push the g-pawn because is part of a defense - Blackburne's, Whistler's - that they are familiar with and are ready to play. Others do so, though, almost as a reflex, to punish White for his early Queen attack - and they figure that they will work out the rest of the defense later.

I checked The Database and found 411 games with the position after 6...g6. Of those games, 139 continued, after 7.Qxe5, with the Blackburne Defense, 7...d6. Another 52 games saw Whistler's Defense, 7...Qe7. That means that in over half of the games where 6...g6 was played, Black was either committed to an inferior defense, or to "figuring something out" - which amounted to the same thing. 

7.Qxe5 Nf6

"I'll take Door Number Three, Monty."

8.Qxc5 Re8 

Instead, Black played 8...Nxe4 in perrypawnpusher - LibertasProVita, blitz, FICS, 2009 (1-0, 45) and perrypawnpusher - ibnoe, blitz, FICS, 2012 (1-0, 16).

Also seen was 8...Qe7 in perrypawnpusher - marbleschess, blitz, FICS, 2009 (1-0, 48); and 8...d6 in perrypawnpusher - MsD, blitz, FICS, 2007 (0-1, 27), perrypawnpusher - brain50, JG3 thematic, ChessWorld.net, 2008 (1-0, 24), and perrypawnpusher - tiagorom, blitz, FICS, 2009 (1-0, 41). 

9.d3 d6 10.Qe3 Ng4 

Also played: 10...d5 in perrypawnpusher - andrecoenen, blitz, FICS, 2010 (1-0, 15) and 10...Kg7 in perrypawnpusher - Alternative, blitz, FICS, 2005 (1-0, 63).

11.Qf3+ Qf6

For historical purposes, let me point out that 11...Kg7 was Black's response in Vazquez,A - Carrington,W, Mexico, 2nd match, 1876 (1-0, 39). 

12.Qxf6+ Nxf6 

The game has lost its attack and counterattack, but White is ahead two pawns.

13.0-0 Kg7 14.Nc3 a6 15.Bg5 Ng4 16.h3



The mistakes start to creep in, small ones at first. A bit better was 16.Nd5 c6 17.Nc7 Be6 18.Nxa8 Rxa8.

16...Ne5 17.f4 Nf7 18.Bh4

Better still was 18.Nd5 Nxg5 19.Nxc7 Nxh3+ 20.Kh2 Rf8 21.Nxa8 Nxf4 but at this point I wasn't looking that deeply into the position. 

18...b5 19.Nd5 Ra7 20.Bf6+ Kg8 21.Ne7+



Missing 21.Bd4 c5 22.Nf6+ Kf8 23.Nxe8 cxd4 24.Nf6 Kg7

21...Rxe7

A gift. I had expected simply 21...Kf8 22.Nxc8 Rxc8

22.Bxe7 c5 23.Rae1?

Returning the favor. I learned to drive in New Jersey, where the two controls on the car are the gas pedal and the horn...

23...Rxe7 

The game is now roughly even, with White having an Rook and two pawns vs two pieces.

24.e5 dxe5 25.fxe5 Rxe5?

25...Nxe5 was the proper recapture, even with the risk of leaving the Knight pinned to an undefended Rook, because of a tactical shot that my opponent and I both missed. 

26.Rxe5 Nxe5 27.Re1 Nc6



Black's best here was 27...Nxd3, although he is worse after 28.Re8+ Kg7 29.Rxc8 Nxb2 30.Rxc5 Kf6.

28.c3?

My opponent and I both missed that 28.Re8+ would fork King and Bishop. 

28...Bf5 29.Re3 Kf7 30.g4 Be6 31.a3 Kf6 32.Kf2 Kg5? 

One last slip, to seal the game.

33.Rxe6 Black resigned

This game is somewhat reminiscent of the old saying "The hurrieder I go, the behinder I get."



Tuesday, November 27, 2012

In A Lost and Lonely Place


For all of the refutations published, here and elsewhere, the Jerome Gambit can still lead a defender into a lost and lonely place, where his King can find danger, and sometimes an ignominious and untimely death.

perrypawnpusher - ibnoe

FICS, 2012

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 




4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ g6 7.Qxe5 Nf6 




This move, which surrenders another piece (7...d6, the Blackburne Defense, is preferrable, and 7...Qe7, the Whistler Defense, is best) is as old as a game from a match between Mexican Champion Andres Clemente Vazquez and American William Harrington, Mexico 1876.


Either Black is unfamiliar with the Jerome Gambit (Quick! Block the Queen's check with a pawn! Yikes! Now my Rook is attacked by the Queen! Block the attack with my Knight!) or he believes that he can calm the opening by returning material, hoping to hold on in a pawn-down position.


8.Qxc5 Nxe4


In the notes to my game perrypawnpusher - brain50, JG3 thematic, Chessworld.net, 2008 I suggested 8...Nxe4. The earliest example of that move in The Database is Toromic - Achele, FICS, 2001 (0-1, 32).


9.Qd5+ Kf6 


My game perrypawnpusher  - LibertasProVitablitz, FICS, 2009 continued 9...Kg7. In my notes (see "Sometimes a platypus has to do what a platypus has to do...") I suggested "After 10.Qxe4 Re8 11.Qe3 d5 12.0-0 Rxe3 13.dxe3 Bf5 White has Rook, a Knight and a pawn for his Queen. I think simply being a pawn up, with the text [10.0-0], is better." The same goes for 9...Kf6 10.Qxe4 in the current game.


10.0-0


Prudent, getting the King off of the dangerous file (10.Qxe4? Re8), but after the game Fritz 8 suggested the straight forward 10.d3, which simply wins the Knight, as it cannot move or Bg5+ would win Black's Queen.


10...Re8 11.d3 c6 


Black would like to chase away the annoying Queen before retreating his endangered Knight (11...Nd6 won't do because of 12.Bg5+). His best chance, found by Rybka after the game, shows how dangerous the position actually is: 11...Re5 12.Qb3! Nd6 13.Qc3 (pinning the Rook) Ke6 14.Bf4 Rf5 15.Re1+ Kf7 16.Bh6! Rf6 17.Bg5. During the game I was looking at 11...Re5 12.Qd4, immediately pinning the Rook, but 12...c5, while still good for White, would have led to messy positions.


12.Qd4+ Kf5 


Black does not "believe" in the attack, and wants at least a pawn back for the piece. Instead, he allows the Rook to be pinned after all.


13.dxe4+ Rxe4




14.Qd3 d5 15.f3 Ke5 16.fxe4 Black resigned