Showing posts with label jgknight. Show all posts
Showing posts with label jgknight. Show all posts

Wednesday, September 11, 2019

Jerome Gambit: Against the Titans (Part 1)

Image result for free clip art titan

Sitting at the computer the other day, I suddenly decided to challenge one of the programs to game of chess. I played the Jerome Gambit, of course. I've done this before - see "Jerome Gambit: Artificial Piffle" and "Contempt?!

Quickly we raced toward one of the more deadly refutations, a trip down memory lane for me that was lined with past escapes - and non-escapes. Suddenly, my opponent came up with a novelty that undid all of its hard work. The rest of the game was a combination of me timidly moving forward, while the computer seemed to lose much sense of things. Come, see. 

perrypawnpusher - Chess Titans
casual game, 2019

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 



4...Kxf7 5. Nxe5+ Nxe5 6. Qh5+ Ke6 



7.Qf5+ Kd6 8.f4 Qh4+ 



The first example that I have found of this move appeared in the American Chess Magazine of June 1899, in a satirical piece titled "A CHESS SCRAP" by "R.F.", which presented a supposed new-fangled thing - a chess game played over the telephone. The move is not a joke, however.

Interestingly enough, when I reported on last year's game against Chess Titans, I noted
I was pretty sure that my opponent was not seriously booked up on the Jerome Gambit, and that the killer move 8...Qh4+!? was not going to show up now.
Back then, it played the insufficient 8...g6. This time, it appeared to be better prepared.

9.g3 Nf3+ 

Black can quietly remove his Queen to f6, but the text is more aggressive.

10.Kf1

I have also played 10.Kd1perrypawnpusher - electrahan, blitz, FICS, 2009 (1-0, 35); perrypawnpusher - Banassi, blitz, FICS, 2009 (1-0, 28); perrypawnpusher - fortytwooz, blitz, FICS, 2010 (1-0, 11); perrypawnpusher - javistas, blitz, FICS, 2010 (1-0, 11); and perrypawnpusher - thinan, blitz, FICS, 2010 (1-0, 11).

The text is best, but, it still leaves Black better.

10...Nxh2+

As I have suggested, "Black can get away with this, but it is not best."

I actually met 10...Qh3+ (likely a mouse slip) twice, perrypawnpusher - rjbriggs, blitz, FICS, 2011(1-0, 10) and perrypawnpusher - inansoy, blitz, FICS, 2014 (1-0, 51).

I have had trouble in the past with 10...Qh6 perrypawnpusher - Temmo, Jerome Gambit thematic, ChessWorld.net, 2008 (0-1, 43) and 10...Qf6 -  perrypawnpusher - james042665, blitz, FICS, 2008, (0-1, 18); and perrypawnpusher - HarlemKnight, blitz, FICS, 2014}(0-1, 24).

I was familiar with the text move, having found it in the game Born Loser - NN, 2005 (1-0, 37) in White's unique book, Unorthodox Chess (2005).

11.Kg2

11...Qd8 

An odd move. I have faced a number of alternatives:

11...Qg4 (probably best) in perrypawnpusher - jgknight, blitz, FICS, 2011 (1-0, 68);

11...Nf6 12.gxh4 in perrypawnpusher - mikelars, blitz, FICS 2011 (1-0, 12);

11...Qe7 12.Qd5 checkmate, perrypawnpusher - intssed, blitz, FICS, 2010 (1-0, 12);

11...Qh6 in perrypawnpusher - JTIV, blitz, FICS, 2010 (1-0, 32); 

11...Qf6 in perrypawnpusher - IlToscano, Chess.com, 2016 (1-0, 18); and

11...Ne7 in perrypawnpusher - constipatedguru, blitz, FICS, 2017 (1-0, 20)

12.Qd5+ 

This move is good and easy to find. After the game, however, Stockfish 10 recommended that I ignore both the Bishop on c5 and the Knight on h2, at least at first, and play 12.Nc3!? The point is that neither Black piece can move to safety effectively - and a couple of possible Bishop moves would lead to checkmate in 2 or 3 moves.

The computer recommends 12...Nf6, which falls right away to the fork 13.e5+. The alternative, 12...Qe8, simply allows 13.Qd5+, and the Bishop will fall next move, and the Knight soon thereafter. White is better, in any event, but the computer is always looking for a "better better."

12...Ke7 13.Qxc5+ d6 

[to be continued]

Monday, September 10, 2018

Jerome Gambit: Too Fast, Too Furious (Part 1)


I was playing my last game in the first round of the "Let's Play The Italian Game" tournament at Chess.com when, suddenly, two opponents made their moves against me in new games. Apparently, the computer scheduler had decided that I would progress to the second round of play, even if I lost the first round game (I didn't; I won it) - so, there I was, with two second round games.

Somewhat disconcerting, each of my opponents was playing quickly - in fact, one of my games ended after a day of play, rather fast given that the time control was one move per day.

Still, I was willing to move with speed, too, as we were contesting a Jerome Gambit - in a line that I had visited several times before. (Alas, I lost the other 3 games, so no more "next" round for more Jeromes.)

perrypawnpusher - TobiasBrunner
"Let's Play The Italian Game" tournament
Chess.com, 2018 

 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 




4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 



7.Qd5+ 

Years ago, I labeled this finesse "a nudge". It is as old as Jerome - Brownson, Iowa, US, 1875 (1-0, 28). In a blitz game, it can get Black wondering what White is up to - using up precious time.

7...Ke8 8.Qxc5 d6 9.Qe3 



After the game, I put Stockfish 9 in "blunder check" mode to look at the game. Initially, it liked 9.Qc3 Qg5 10.Qg3 Qxg3 11.hxg3, with Black's advantage less than a pawn. That seems a bit silly to me, White moving his Queen 5 times, only to let it be exchanged.

According to The Database, I have reached the diagrammed position 83 times in my games. I must have learned something about the line.

9...Nf6 10.O-O Kf7 

Black sensibly prepares to mobilize his Rook, and possibly castle-by-hand.

A major alternative is 10...Ng4.The proper response is 11.Qg3!,and this is reminiscent of the series of posts I did a while back on "Jerome Gambit Secrets". A strong and experienced Jerome Gambiteer tried 11.Qe2, instead, and perished quickly: mrjoker - weiran, ICC, 2008 (0-1, 14). Another played 11.Qc3 and needed all of his Houdini-like powers to escape and turn the tables: Wall,B - Guest1660564, PlayChess.com, 2013 (1-0, 32). 

I have played 11.Qg3 with mixed results: perrypawnpusher - lorecai, blitz, FICS, 2011 (1-0, 14), perrypawnpusher - jgknight, blitz, FICS, 2011 (1/2-1/2, 49), perrypawnpusher - FiNLiP, blitz, FICS, 2011 (0-1, 59). For a couple of more modern examples, from stronger players, see Sheldrick,K - Bhat,V, Australian Open, 2017 (1-0, 20) and Morin,L - Weston,P, Quebec Open, 2018 (1-0, 54)

11.f4 Re8 12.f5 

I have been pretty successful with this thematic move (10 - 4 - 1), chasing the Knight, so I was surprised to see, after the game, that Stockfish 9 recommended 12.Qb3+!? instead. The Database has only one game with that move, a win by Black in 25 moves.

12...Ne5 13.d4 

Here, again, the computer prefers 13.Qb3+, followed by 14.d3, which seems to lock the Queen on the Queenside. (There are no game examples in The Database.) As we will see, Stockfish's preference is based on disliking Black's next move.

13...Neg4 


[to be continued]

Saturday, May 20, 2017

Jerome Gambit: Smitten

A bit of chess advice from C.J.S. Purdy: Examine moves that smite. In the following game my opponent shows some familiarity with the Jerome Gambit, and smites hard at my position - alas, at one point losing his footing, with less than successful results.

perrypawnpusher - constipatedguru
5 5 blitz, FICS, 2017

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 



4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 7.Qf5+ Kd6 8.f4 Qh4+ 



Black ignores the (lack of) safety of his King as well as his attacked Knight, and plays a smiting move that is often dangerous to White.

9.g3 Nf3+

Again, a strong, attacking move.

10.Kf1 Nxh2+ 

Black can get away with this, but it is not best.

11.Kg2 Ne7 

But here he slips, although a number of my opponents have lost their way in the past as well:

11...Qe7 as in perrypawnpusher - intssed, blitz, FICS, 2010 (1-0, 12);

11...Qh6 as in perrypawnpusher - JTIV, blitz, FICS, 2010 (1-0, 32);

11...Qg4 (best) as in perrypawnpusher - jgknight, blitz, FICS, 2011 (1-0, 68);

11...Nf6 as in perrypawnpusher - mikelars, blitz, FICS, 2011 (1-0, 12); and

11...Qf6 as in perrypawnpusher - IlToscano, Chess.com, 2016 (1-0, 18).

12.Qe5+ Kc6 13.gxh4 Ng4 14.Qc3 Kb6




Black has two pieces for his Queen. It is not enough.

15.d4 Bd6 16.e5 Nd5 17.Qb3+ Bb4 18.Qxd5 



You have to know that if Bill Wall were playing the White pieces he would have played something like 18.Nc3!?

18...d6 19.c3 c6 20.Qf3 Black forfeited on time





Saturday, July 11, 2015

Footnotes to More Exploring


Here are some additions to the previous post, which focused upon a line in the  Abrahams Jerome Gambitthe game ndizvoh - stevebrown, blitz, FICS, 2015.


After 1.e4 e5 2.Bc4 Bc5 3.Bxf7+ Kxf7 4.Qh5+ g6 5.Qxe5 Bxf2+ 
6.Ke2


the move 6...Nf6 was suggested as an alternative to 6...Qf6,

He also had the move 6...Nf6, which does the same thing, as 7.Kxf2 would then be met with 7...Ng4+, winning White's Queen.
Examples from The Database: 

Rattymouse  - bobbybo

blitz, FICS, 2007
1.e4 e5 2.Bc4 Bc5 3.Bxf7+ Kxf7 4.Qh5+ g6 5.Qxe5 Bxf2+ 6.Ke2 Nf6 7.Kxf2 Ng4+ White resigned

lksharma - oeyvind

blitz, FICS, 2008
1.e4 e5 2.Bc4 Bc5 3.Bxf7+ Kxf7 4.Qh5+ g6 5.Qxe5 Bxf2+ 6.Ke2 Nf6 7.Kxf2 Ng4+ 8.Ke1 Nxe5 9.d3 Rf8 10.Nh3 Kg8 11.Bg5 Qe8 12.Nd2 d5 13.Ke2 Bxh3 14.gxh3 dxe4 15.Nxe4 Nc4 16.Raf1 Rxf1 17.Rxf1 Nc6 18.Kd1 Nxb2+ 19.Kc1 Qe5 20.Nf6+ Kg7 21.Nd7 Qd6 22.Bf6+ Kh6 23.Bxb2 Qxd7 24.Bc3 Re8 25.Bd2+ g5 26.h4 Kh5 27.Bxg5 Re2 28.Bf6 Qg4 29.Kb2 Qb4+ 30.Kc1 Qa3+ 31.Kd1 Rxh2 32.Rf5+ Kg6 33.Rf4 Rg2 34.Bb2 Rg1+ 35.Ke2 Qe7+ White forfeited on time

xreal - jgknight

blitz, FICS, 2010
1.e4 e5 2.Bc4 Bc5 3.Bxf7+ Kxf7 4.Qh5+ g6 5.Qxe5 Bxf2+ 6.Ke2 Nf6 7.Kxf2 Ng4+ 8.Ke2 Nxe5 9.Nf3 Nxf3 10.gxf3 d5 11.d3 dxe4 12.fxe4 Bg4+ 13.Kd2 Qg5+ 14.Kc3 Qe5+ 15.Kb3 Be6+ 16.c4 Nc6 17.Rf1+ Ke8 18.Bf4 Nd4+ 19.Kc3 Ne2+ 20.Kd2 Nxf4 21.Nc3 Rf8 22.Ke3 Ng2+ 23.Kd2 Rxf1 24.Rxf1 Qg5+ 25.Kc2 Ne3+ 26.Kb3 Nxf1 White resigned

marciprevi - chesssuperstar

blitz, FICS, 2014
1.e4 e5 2.Bc4 Bc5 3.Bxf7+ Kxf7 4.Qh5+ g6 5.Qxe5 Bxf2+ 6.Kf1 Nf6 7.Kxf2 Ng4+ 8.Ke2 Nxe5 9.d4 Nc4 10.b3 d5 11.bxc4 Bg4+ 12.Ke3 Qg5+ 13.Kd3 dxc4+ 14.Kxc4 Qxc1 15.Kc3 Bd1 16.Ne2 Qxc2+ 17.Kb4 a6 18.Rf1+ Kg7 19.Na3 Nc6 checkmate

A little further along in the game's notes, I recommended that

White probably should have settled for 7.Qxf6+ Nxf6 8.Kxf2 Nxe4+ and a roughly equal game.
However, a quick look at The Database showed that in 23 games my suggestion scored 72% for Black!?

A consultation with Houdini 3 and Stockfish 6 gave me a clue as to what was going on. While both computer programs agreed that the responses 9.Ke1 and 9.Kf1 led to a balanced game, the move 9.Ke2 (3 games) led to an edge for Black, and the move 9.Ke3 (15 games) led to  an advantage for Black. (Both moves are well met by 9...Re8.)


It can be helpful to know what has been played previously, if only to know what moves to avoid!


Finally, it can be noted that after the game continuation, 1.e4 e5 2.Bc4 Bc5 3.Bxf7+ Kxf7 4.Qh5+ g6 5.Qxe5 Bxf2+ 6.Ke2 Qf6 7.Qd5+ Kg7


The Database contains 7 games with this position: 6 losses for White (one of them ndizvoh - stevebrown, blitz, FICS, 2015) and 1 draw.

Monday, November 3, 2014

Overwhelmed

One of the nice things about playing the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) is that sometimes your opponent does not know how to respond. He can try this, or that, or something else, but it all turns out bad for him in the end. Bill Wall's latest game is a good example.

Wall, Bill - Arty
blitz 10 0, PlayChess.com, 2014

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




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




A brave choice! Black wishes to hold on to his two extra pieces.


7.f4 Ng6


Choosing to let go of a piece, after all. Otherwise, the consistent move would be the counter-attacking 7...Qf6.


8.Qxc5


Improving on 8.f5+ from Wall,B - Guest1157782, PlayChess.com, 2013 (1-0, 20). 


8... Qh4+ 


There are variations where this move is strong and leads to favorable complications. Unfortunately, this is not one of them.


Withdrawing the at-risk Knight with 8... N6e7 would lead to an even game. 

9.g3 Qf6


Two alternative retreats appear in The Database: 9... Qg4 from Permanence - jgknight, FICS, 2008 (0-1, 38) and 9... Qe7 from Permanence - Pianisimo, FICS, 2008 (1-0, 17). 


10.f5+ Kf7 11.fxg6+ Qxg6 12.O-O+ Nf6 13.e5 




White has his two sacrificed pieces back, and aims to gather another one in, as interest. Black's defense collapses.


13...d6 14.Qxc7+ Bd7 15.Qxd7+ Black resigned




Sunday, October 26, 2014

Outplayed


Although my opponent chose one of the stronger and more complicated defenses to the Jerome Gambit in the following game, I had my chance to level things out - but missed it. After that, I was simply out-played.

perrypawnpusher - HarlemKnight
blitz, FICS, 2014

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 



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



7.Qf5+ Kd6 8.f4 Qh4+


The start of a complicated, but deadly counter-attack.

9.g3 Nf3+ 10.Kf1 

For some reason I played the text (also see "Repairing A Variation" Part 1, 23 and 4), instead of 10.Kd1, with which I was 6-0, including 3 games that ended after 10...Qe7 11.Qd5 checkmate (perrypawnpusher - fortytwooz, blitz, FICS, 2010; perrypawnpusher - javistas, blitz, FICS, 2010; and perrypawnpusher - thinan, blitz, FICS, 2010).


10...Qf6


I don't think I'll ever be as lucky as to receive the mouse-slip 10...Qh3+ as in perrypawnpusher - rjbrigs, blitz, FICS, 2011, (1-0, 10) and perrypawnpusher - inasoy, blitz, FICS, 2014 (1-0, 51) again; although stranger things have happened.


On the other hand, 10...Nh2+ was good to me in perrypawnpusher - intssed, blitz, FICS, 2010 (1-0, 12), perrypawnpusher - JTIV, blitz, FICS, 2010 (1-0, 32), perrypawnpusher - mikelars, blitz, FICS, 2011, (1-0, 12) and perrypawnpusher - jgknight, blitz, FICS, 2011 (1-0, 68).


The retreat 10...Qh6, however, did not end so nicely for me, in the nonetheless enjoyable perrypawnpusher - Temmo, JG3 thematic, ChessWorld.net, 2008 (0-1,43)


11.Qd5+ Ke7 12.Qxc5+ Kd8 13.e5




Better was 13.Kg2 as in perrypawnpusher - james042665, Chess.com, 2008 (0-1, 18). 


13...Qf7 14.Kf2 b6 15.Qe3 Bb7 16.Nc3 Nh6 17.h3 Nxd2



Up until this point, Black has been doing very well, and I was surprised to discover later that he has no other games, as Black or White, in The Database. It was time to pour on the heat with 17...Nf5, or let the advanced Knight escape with 17...Ng5.


18.Rd1


Missing my one chance - and they were not coming by very often. With 18.Bxd2 Bxh1 19.Rxh1 White would have a pawn for the exchange, and the game would be a long way from being decided.


18...Nc4 19.Qd3 Qe6


The text is okay, but 19...Nxe5 would be crushing. Black does not need to sacrifice to win, however.


20.g4 g6 21.f5


The only way to stay in the game, according to Houdini, was to make a  play against the wayward Knight with 21.Nd5, although after the exchanges 21...Qxd5 22.Qxd5 Bxd5 23.Rxd5 White would be playing with one pawn for his sacrificed piece, and Black would not have to be in any hurry getting his pieces to better squares to press his attack.


21...gxf5 22.Bxh6 fxg4 23.hxg4 Nxe5 24.Qf5 


This blunder ended it all.


24...Nxg4+ White resigned





Friday, May 9, 2014

What Hole?



Ah! Another unsound attack with the Jerome Gambit by Yours Truly! At first glance, it looks powerful - but, there is a hole in it. (Or maybe more than one...) Lucky for me, my opponent missed his escape, and perished in rolling thunder.


perrypawnpusher - kenkenaitya
blitz, FICS, 2014

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



The Jerome Gambit.

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


I like facing this defense, as it allows White to get rid of the annoying Black dark-squared Bishop and to get his "Jerome pawns" rolling.

7.Qd5+ Ke8 8.Qxc5 d6 9.Qe3 Nf6


10.0-0 Rf8 11.f4

Or 11.f3 as in mrjoker - PhlebasP, ICC, 2009 (1-0,35).

11...Kf7

Alternatives:


12.f5 Ne5 13.d4 Neg4 14.Qd3 Kg8 



Black has castled-by-hand, but White already has a small edge.


15.h3 Nh6 16.Bxh6 gxh6 17.Nc3 a6 18.Qe3 Kg7




Rybka 3 gives a very complicated defense starting with 18...Ne8, and including ...Qe7 and ...Qf6 to exchange (or drive) off White's Queen.

19.Qg3+


Here, and for the next few moves, Rybka 3 prefers e4-e5. Then, when I finally play the move, it prefers something different. The reason? See the note to Black's 23nd move.

19...Kf7 20.Qh4 Rg8 21.Qxh6 Rg7



22.e5?



First White should play 22.Rae1.

22...dxe5 23.dxe5 Ng8

Instead, 23...Qd4+ 24.Rf2 Qxe5 gives Black the edge. White must always be wary of the Black Queen check and capture, if he plays the e4-e5 break.

24.e6+ Kf8 25.Qf4 b5


Here Rybka 3 suggests that Black try his luck in a Rooks and pawns endgame (where he is still worse): 25...Nf6 26.Rad1 Qe7 27.Nd5 Qc5+ 28.Ne3 Qe7 29.Ng4 Nxg4 30.hxg4 Bxe6 31.fxe6+ Kg8 32.Qc4 Rg6 33.Rfe1 b5 34.Rd7 bxc4 35.Rxe7 Rg7 36.Rd7 c3 37.bxc3 Re8 38.Rxg7+ Kxg7 39.e7 Kf6.

Now White finishes off the game in sparkling style.

26.Rad1 Qe8 27.f6 Rg6 28.f7 Qe7 29.fxg8Q+ Kxg8 30.Qf7+ Qxf7 31.exf7+ Kf8 32.Rd8+ Ke7 33.f8Q+ Ke6 
Black resigned as I played 34.Re1





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