Showing posts with label electrahan. Show all posts
Showing posts with label electrahan. 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, November 23, 2009

Tied Up, or How Much Is A Queen Worth?

There's nothing like receiving the gift of your opponent's Queen in the first twelve moves of a game, especially when you are in a critical line of one of the Jerome Gambit's (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) refutations.

Why, it only took me 32 more moves to end the game!

Huh?

perrypawnpusher  - elyza
blitz FICS, 2009

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

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


This is one of the classical refutations of the Jerome Gambit.

Modern players unfamiliar with the Jerome may prefer 6...Ng6, 6...Kf8 or 6...g6 because this line feels more dangerous, but the King is actually safe in the middle of the board – and Black has two extra pieces, as well.

My first conclusion about my opponent, who was playing without much hesitation: he either doesn't like to return material, or he knows what he is doing.

7.Qf5+ Kd6 8.f4 Qh4+


Ah, yes, the "Nibs" defense – or counter-attack, if you will. It's beginning to look like my opponent elyza has stopped by this blog a time or two.

9.g3 Nf3+

Wow! Seriously cutting-edge play. For some background, check out "Repairing a Variation (Part 1), (Part 2), (Part 3) and (Part 4)".

10.Kd1
If you are going to battle the Queen-sac line, I think 10.Kd1 is the right move. If you are looking toward the endgame, 10.Kf1 is to be preferred – "Repairing a Variation (Part 4)"
The alternative: 10.Kf1 Qh6 (10...Qf6 11.Qd5+ Ke7 12.Qxc5+ Kd8 13.Kg2 d6 14.Qd5 Ne7 15.Qd3 Nd4 16.e5 dxe5 17.c3 Bf5 18.fxe5 Qc6+ White resigned, perrypawnpusher - james042665, Chess.com, 2008) 11.Qd5+ Ke7 12.Qxc5+ Qd6 13.Qxd6+ cxd6 14.c3 g5 15.Kf2 g4 16.h3 d5 17.hxg4 dxe4 18.d3 d5 19.g5 h6 20.dxe4 dxe4 21.Nd2 Nxd2 22.Bxd2 Bg4 23.Be3 Ke6 24.Rh4 Kf5 25.Bd4 Rh7 26.Rah1 h5 27.Ke3 Ne7 28.R4h2 Nd5+ 29.Kd2 b6 30.Re1 Re8 31.Be3 Rd8 32.Kc2 Rc7 33.a3 Rcd7 34.Bd4 b5 35.Be5 Rc8 36.Kb1 a5 37.g6 b4 38.axb4 axb4 39.g7 b3 40.Bd4 Kg6 41.Kc1 Kf5 42.Rhh1 Nb4 43.Kd2 Rxd4+ White resigned, perrypawnpusher - Temmo, JG3 thematic, Chessworld, 2008.

10...Qf6

Or 10...Qh6 11.Qd5+ Ke7 12.Qxc5+ Qd6 13.Qxd6+ cxd6 14.c3 Nf6 15.d3 b6 16.Ke2 d5 17.Kxf3 dxe4+ 18.dxe4 Bb7 19.Re1 Kf7 20.Nd2 Rhe8 21.g4 d5 22.e5 d4+ 23.Kg3 dxc3 24.bxc3 Nd5 25.Bb2 Rad8 26.Ne4 Nf6 27.Nd6+ Kf8 28.Nxb7 Rd7 29.Ba3+ Kf7 30.Nd6+ Rxd6 31.exd6 Ne4+ 32.Rxe4 Rxe4 33.Kf3 Rc4 34.d7 Rxc3+ 35.Ke4 Black resigned, perrypawnpusher - electrahan, blitz FICS, 2009

11.e5+

Fail.

This looked like a great move at the time, but the right path had already been laid out for me by Louis Morin ("mrjoker"), that of simply collecting the dark-squared Black Bishop: 11.Qd5+ Ke7 12.Qxc5+ d6 13.Qxc7+ Bd7 14.Nc3 Rc8 15.Nd5+ Ke6 16.Qxb7 Qd4 17.f5+ Ke5 18.Qxd7 Nf6 19.Qe6 checkmate, guest2365 - guest2535, Internet Chess Club, 2004

11...Ke7

Wow.

Black was taken in by the move, too. Had he played, instead, 11...Nxe5 12.fxe5+ Qxe5 he would have shown that my pawn advance was a blunder.

12.exf6+ Nxf6


Game over? Hardly. My opponent probably wants me to show him that I have more than just a good sense of humor in the opening. Or maybe he is aware that sometimes I get... tired.

13.Qxc5+ d6 14.Qe3+ Kf7


15.h3

Naturally not 15.Qxf3 Bg4 winning the Queen.

15...Nxd2 16.Bxd2 Re8


17.Qf2 Kg8 18.Re1 Bxh3


I don't mind giving up the pawn. I'm trying to untangle my pieces on the Queenside.

19.Nc3 Bg4+ 20.Kc1 c5 21.b3 b5 22.Kb2 b4 23.Ne2 Ne4


This is getting annoying.

24.Qe3 a5 25.Qd3 a4 26.Ng1 a3+ 27.Kc1


27...Rad8

I was getting frustrated. Being this tied up was ridiculous!

28.c4

This is not a BLUNDER, but it is clearly an INACCURACY – see "Italian Game Anti-Fried Liver Defense (Part 2)" – since 28.Rxe4 was the best move. (Would it have ended the game? Probably not.)

Here is my new annotation for "I should have had some coffee":


28...Nf2 29.Rxe8+ Rxe8 30.Qxd6 Ne4


31.Qd5+ Be6

A slip. It helped.

I knew that I was going to have to go all the way to checkmate with my opponent, though, and time was running low.

32.Qxe4 Bf7 33.Qg2 Bh5 34.Kc2 Bg6+


35.Kd1 Be4 36.Qf2 Bf5 37.Nf3 Bg4


38.Be3 Rd8+ 39.Ke1 Rd3 40.Rd1


At last!

40...Rc3 41.Rd8+ Kf7 42.Ne5+ Ke7 43.Qd2 Bf5 44.Qd6 checkmate





graphic by Jeff Bucchino, The Wizard of Draws

Sunday, October 25, 2009

Repairing a Variation (Part 4)


Once you have defined the problem (Part 1) with an opening variation, reviewed some game history (Part 2), and seen what has been written about the line (Part 3), it is time to analyze and test out new ideas.

In the case of the "Nibs" defense of the Jerome Gambit, (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) there are three strategies to choose from.


#1) Embrace the chaos

You may choose to continue to play the main line, anyway, believing that it is so complicated that your opponent will never find a way through to the advantage. (So far, only one player, peonconorejas has.) In this case, it is important to be familiar with the places (especially moves 10 through 17) where Black might slip up, so that your greater understanding of the strategic and tactical nuances gives you the better chances.

An example is perrypawnpusher - electrahan, blitz FICS, 2009.


Black did not discover the killer 10...Ne7 (and the idea behind it) and instead retreated his Queen with 10...Qh6.

Three moves later I reached the following position.

My comment at this point of the game was

My one advantage against electrahan was that I was more familiar with the positions and play, and so was significantly ahead on the clock.

The game continued to be very interesting, and I prevailed in 35 moves.




#2) Find a Jerome Gambit endgame that you are comfortable with.

Much to my annoyance, despite a lot of hard work (with the help of Rybka 3, Fritz 8 and ChessBase 8) I have not yet found a "bust" to Black's Queen sacrifice in the "His Nibs" defense.

Players who are comfortable with a Jerome Gambit endgame (blackburne and mrjoker come quickly to mind) – with one, two or three pawns for the sacrificed piece; ideally, also with an active King – can look at the following line.

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 7.Qf5+ Kd6 8.f4 Qh4+ 9.g3 Nf3+ 10.Kf1

If you are going to battle the Queen-sac line, I think 10.Kd1 is the right move. If you are looking toward the endgame, 10.Kf1 is to be preferred.

10...Ne7 The same strong move with the same strong threats. 11.Qxc5+ This move will either displease or please your opponent, depending on whether the second player knows the Queen-sac line or not. 11...Kxc5 12.gxh4

This is an interesting position. White has two pawns for a piece, although the one at h4 is threatened. As long as a lot of pieces remain on the board, Black's King is at risk; but with each exchange, he becomes more of an attacker than a defender. Black's advanced Knight may or may not be in danger, similar to the game perrypawnpusher - Temmo, Chessworld, 2008.

It's not very exciting for White after 12...Nxh4 13.Nc3 (with d2-d3 and possibly Rh1-g1 to follow) but if Black's Knight becomes dim on the rim, or if White's King can mosey over that way, there may be some play to be had.

#3) Change to another line of play.

In this case, it might be worth investigating 7.f4, instead of the 7.Qf5+ and 8.f4 line, something that I am doing right now.

(But I still hope to be able to crack the Queen-sac some day!)




graphic by Jeff Bucchino, The Wizard of Draws

Tuesday, April 7, 2009

A Dangerous Place


In a chess game, like when on a long walk, if you're not paying attention to where you're going, you could wind up in a dangerous place. If you happen to be playing the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) you are almost certain to find some danger.
I think that my opponent, electrahan, knew something about the Jerome Gambit. Our game quickly travelled to a very complicated line of defense – nothing like the Najdorf Sicilian, but Jerome Gambit Tournament: Chapter XVI and Jerome Gambit: Fools walk in... are almost "required reading" to appreciate what follows.

perrypawnpusher - electrahan
blitz 9 5, FICS, 2009

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


Welcome, Mr. Electrahan, shall we go for a walk?
4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6
7.Qf5+ Kd6 8.f4 Qh4+
As far as you are willing to go, Mr. Pawnpusher...

Sometimes referred to as "His Nib's Defense," (see "Jerome Gambit Tournament: Chapter II") this line has caused me no small amount of headaches. And excitement. And wonder. There's a Queen sacrifice hidden somewhere, and even if it doesn't come off, the game becomes very unclear.

9.g3 Nf3+

Before this game I had losses to Temmo (0-1, 43) and James042665 (0-1, 18) in this line.

10.Kd1
This is the line that "R.F." originally played against "His Nib's", but in my earlier games I had preferred 10.Kf1, which was the better choice.

Now Black can sacrifice his Queen (as in abhailey - peonconorejas, net-chess.com, 2008, 0-1, 20) with 10...Ne7 11.e5+ Kc6 12.Qe4+ d5 13.exd6+ Nd5 14.gxh4 Bg4 and win – but you really have to know the line, as it would be difficult to suss out over-the-board in blitz.

10...Qh6

This retreat – which is similar to Temmo's Queen retreat (with my King on f1) and Kevin the fruitbat's Queen retreat to f6 in a comparable position (perrypawnpusher - Kevin the fruitbat, chessworld, 2008, 1-0, 38) – still leaves Black with a slight advantage.

11.Qd5+ Ke7 12.Qxc5+ Qd6 13.Qxd6+ cxd6
The same dilemma that I faced against Temmo: if the advanced Black Knight stands, the second player is better; but if it falls, I am even, and may have the advantage.

My one advantage against electrahan was that I was more familiar with the positions and play, and so was significantly ahead on the clock.
14.c3

To keep the Knight put.

After the game Rybka 3 recommended 14.b3 Nf6 15.Bb2 d5 (working to free the Bishop) with complications and a rather unclear game after either 15.exd5 or 15.e5.

14...Nf6

A sensible move, although Fritz8's 14...d5 and Temmo's 14...g5 were more likely to keep Black's edge.

15.d3

Stronger was the immediate 15.Ke2

15...b6

Black has settled upon his defensive plan: it involves ceding the Knight.

16.Ke2 d5 17.Kxf3 dxe4+ 18.dxe4 Bb7
19.Re1 Kf7 20.Nd2 Rhe8 Black has some compensation for his two pawns in the congestion of White's Queenside.

21.g4 d5

Instead, 21...Nxe4 22.Nxe4 Rxe4 23.Rxe4 Re8 24.Be3 Bxe4+ 25.Kf2 d5+ held chances of a drawn Bishops-of-opposite-colors endgame.

22.e5 d4+ 23.Kg3 dxc3 24.bxc3 Nd5
25.Bb2 Rad8 26.Ne4 Nf6 This does not work out, and is likely the result of time issues.

27.Nd6+

Good enough, but 27.Ng5+ Kg8 28.exf6 was stronger.

27...Kf8 28.Nxb7
Again, 28.exf6 was stronger, but the text works. Black's game unravels.

28...Rd7 29.Ba3+ Kf7 30.Nd6+ Rxd6 31.exd6
31...Ne4+ 32.Rxe4 Rxe4 33.Kf3 Rc4 34.d7 Rxc3+ 35.Ke4 Black forfeited on time