Showing posts with label apinheiro. Show all posts
Showing posts with label apinheiro. Show all posts

Friday, July 15, 2016

Semi-Italian Jerome Gambit: It's Not A Blunder Until It's Refuted

Image result for free clip art blunder

The following blitz game allows me to comment on a rare Jerome Gambit line (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.0-0 h6 6.Nxe5+ Nxe5 7.Qh5+ by transposition) and an improvement for Black that has yet to be played, despite its mention here.

perrypawnpusher - Duwasi
10 0 blitz, FICS, 2016

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.Qh5+ g6



Three years ago I wrote in a post "By the Numbers"
The Database has almost 27,000 games in it, yet there are only 7 (until now) with this position; and I had White in all of them, scoring 100%.
The Database now has over 55,000 games, and there are 10 with this position; I had White in all of them, still, scoring 100%.

8.Qxe5

Here Black resigned in perrypawnpusher - JohnBr, blitz, FICS, 2010 and perrypawnpusher - AcesFullofKings, blitz, FICS, 2011.

8...d6

Black tried 8...Nf6 in perrypawnpusher - islanderchess, blitz, FICS, 2008 (1-0, 46), perrypawnpusher - wadada, blitz, FICS, 2009 (1-0, 19) and perrypawnpusher - Entangle, blitz, FICS, 2014 (1-0, 24).

Black played 8...Bd6  in perrypawnpusher - apinheiro, blitz, FICS, 2010 (1-0, 35) and perrypawnpusher - eaadahl, Chess.com, 2013, (1-0, 37).

Black essayed 8...Qf6 in perrypawnpusher - alekbb, blitz, FICS, 2010 (1-0, 47).

Black tried 8...Be7 in perrypawnpusher - PravinMamania, blitz, FICS, 2010 (1-0, 50).

Black's best choice i8...Bf8, as the Rook is then off-limits - 9.Qxh8? Bg7 10.Qh7 Nf6 and Her Majesty is doomed. White does best with 9.d4, but after 9...d6 10.Qb5 c6 11.Qd3 Black is better.

It is possible that Black's move in the game - and the Rook sacrifice - was prompted by some knowledge of the game Amateur - Blackburne, London, 1885, but the addition of ...h6 and 0-0 in our game makes a big difference.

9.Qxh8 h5 10.Qc3

Quickly extracting the Queen, and unnecessarily so, as safety was no longer an issue. It was wiser to play 10.d4 Bb6 11.Qh7+ Kf8 12.Bh6+ Nxh6 13.Qxh6+ Kf7 and gain some more material.

Still, White is the exchange and a couple of pawns ahead, and plays it safe the rest of the way.

10...Be6 11.d4 Bb6 12.d5 Bd7 13.Qf3+ Nf6 14.Bg5 Bg4 15.Qxf6+ Qxf6 16.Bxf6 Kxf6 

17.Nc3 Bd4 18.h3 Bd7 19.Rad1 Be5 20.f4 Bxc3 21.bxc3 Ke7 22.e5



22...Bb5 23.Rf2 Bc4 24.e6 Bxa2 25.f5 gxf5 26.Rxf5 h4 27.Rf7+ Kd8 28.Rf8+ Ke7 29.Rxa8 

I think Black played on because he was ahead on the clock and I was playing in an uninspiring manner - a reasonable idea, although, in this case, an unsuccessful one.

29...a6 30.Rf1 Bxd5 31.Rh8 Kxe6 32.Re1+ Kd7 33.Rxh4 Kc6 34.c4 Be6 35.Rxe6 b5 36.cxb5+ axb5 37.Rb4 Kc5 38.c3 c6 39.Ree4 d5 40.Rh4 Kd6 41.g4 Ke6 42.g5 Kf5 43.Rhg4 Kg6 44.h4 Kh5 45.Kg2 Kg6 46.Kg3 Kg7 47.Rbf4 Kg6 48.Rf6+ Kg7 49.h5 c5 50.h6+ Kh7 51.Kh4 d4 52.cxd4 c4 53.Rb6 c3 54.Rxb5 c2 55.Rg1 Kg6 56.Rc1 Kh7 57.Rxc2 Black resigned



Thursday, April 18, 2013

By the Numbers


While I was finishing up my games in the third round of the Chess.com Italian Game thematic tournament, I received a challenge from another player, and was able to inject some more Jerome-ish fun into my game.

We followed a line that I was familiar with, and although it took an odd turn or two, the result was pleasing.


perrypawnpusher  - eaadahl

Chess.com, 2013

1.e4 e5 2.Nf3 Nc6 3.Bc4 h6 




The Semi-Italian Opening.


4.0-0 Bc5 5.Bxf7+


The Semi-Italian Jerome Gambit. I have played it 51 times, scoring 88%. pblond has two of the three wins against me; the other was an embarassing mouse-slip Queen-loss on move 8.


5...Kxf7 6.Nxe5+ Nxe5 7.Qh5+ g6




The Database has almost 27,000 games in it, yet there are only 7 (until now) with this position; and I had White in all of them, scoring 100%.


8.Qxe5 


Here Black resigned in perrypawnpusher - JohnBr, blitz, FICS, 2010 and perrypawnpusher - AcesFullofKings, blitz, FICS, 2011.


8...Bd6


Or 8...Qf6 as in perrypawnpusher - alekbb, blitz, FICS, 2010 (1-0, 47); or


8...Be7 as in perrypawnpusher - PravinMamania, blitz, FICS, 2010 (1-0, 50); or


8...Nf6 as in perrypawnpusher - islanderchess, blitz, FICS, 2008 (1-0, 46) and perrypawnpusher - wadada, blitz, FICS, 2009 (1-0, 19)


Best is 8...Bf8!?, planning to trap White's Queen after 9.Qxh8?.


9.Qxh8 Qf6 10.Qxf6+ Nxf6 11.d3 h5 




White has the exchange plus two pawns for the advantage.


I survived the silly 11...Be5 12.Bxh6? in perrypawnpusher - apinheiro, blitz, FICS, 2010 (1-0, 35)


12.Nc3 a6 13.Bg5 Bc5 




The time limit on our game was three days per move, but obviously this was played too casually.


14.Bxf6 Kxf6 15.Nd5+ Kg7 16.Nxc7 Rb8 17.Nd5 d6 




I was pretty sure that if I opened the game up, Black's two Bishops would be a good match for my Rook and Knight. Therefore I took some time to see how I could make use of my extra pawns.


18.c3 Be6 19.Nf4 Bf7 20.d4 Bb6 21.Nh3 Bc4 22.Rfe1 Re8 23.f4 d5 24.e5 Bc7 25.Nf2 a5 26.g3 b6 27.h3 Bd8



I don't think that my timid play impressed my opponent.


28.b3 Bb5 29.Rac1 Bc7 30.c4 dxc4 31.bxc4 Ba6 32.d5 Bc8 





Black is ready to play cat-and-mouse, his Bishops against my pawns, but it is time to open the position and finish things up.

33.d6 Bb8 34.c5 bxc5 35.Rxc5 a4 36.Rb1 Ba7 37.Rc7+ Black resigned


Sunday, March 13, 2011

The Long and Winding Road

The following game takes its time getting where it's going. In fact, it probably could have taken even longer, if my opponent had not forseen the future and decided to stop travelling.

perrypawnpusher - VGxdys
blitz, FICS, 2011

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.Qh5+ Ng6 8.Qd5+

Interestingly, Rybka 3 (at a depth of 20 ply) sees this "nudge" as 1/2 pawn better than the immediate capture, 8.Qxc5.

8...Ke8 9.Qxc5 d6 10.Qe3 Nf6



A standard Semi-Italian Jerome Gambit position, although Black has also played 10...Qf6 in perrypawnpusher - saltos, blitz FICS 2009 (1-0, 28); 10...Ne5 in perrypawnpusher - Kotimatka, blitz FICS, 2009 (1-0, 21) and perrypawnpusher - Eferio, blitz, FICS, 2011 (1-0, 24); 10...Qe7 in perrypawnpusher - Macgregr, blitz, FICS, 2010 (1-0, 23); and 10...N8e7 in perrypawnpusher - apinheiro, blitz, FICS, 2010 (1-0, 59), perrypawnpusher - VGxdys, blitz, FICS, 2011 (1-0, 32) and perrypawnpusher - apinheiro, blitz, FICS, 2011 (1-0, 25).

11.f4

Or 11.d4 and then 12.f4 as in perrypawnpusher - KenWhitaker, blitz, FICS, 2010 (1-0, 27).

11...Kf8

Taking the King off of the dangerous e-file, if temporarily putting him on the dangerous f-file. Black's plan is to castle-by-hand, with the King ending up on h7. Instead a center strike with 11...Qe7 12.d3 d5 occurred in perrypawnpusher - LeifPetersen, blitz, FICS, 2010 (1-0, 30).

12.f5 Ne5 13.d4 Nc4



It was probably safer to play 13...Nf7, but who can resist harassing the Queen?

14.Qd3 b5

Oddly similar to our earlier game, referred to above.

15.b3 Nb6 16.Nc3 Kg8 17.Qxb5 a6 18.Qe2 Kh7


White has grabbed a Queenside pawn while Black has castled-by-hand on the Kingside. The game is about even.

19.e5 dxe5 20.dxe5 Nfd5 21.Bb2

Good enough, although with White's forces focusing on the f6 square, 21.Ne4 would have been even better.

21...Re8 22.Rad1 Qg5



This was Black's idea, attacking White's King.

25.Rd2 a5 26.Qf2 Ba6 27.Rfd1 Rad8 28.Rxd8 Rxd8 29.Rxd8 Qxd8


30.Qd4 Qg5 31.e6 Bb7 32.Qf2 Be4 33.f6 gxf6 34.Bxf6 Qc1+


The game has taken on some of the annoying aspects of the typical Jerome Gambit Bishops-of-opposite-colors endgame. Still, I was willing to exchange Queens and try my luck. Too, exchanging Queens was Black's best chance.

35.Qf1 Qe3+ 36.Kh1 Bxc2 37.e7 Bd3

A slip, which should have been punished by 38.e8/Q, winning the Bishop.

38.Qg1 Qe6 39.Bh4 Qf7



40.Qe1 Bb5 41.Qe4+ Kg7

Another slip: White can now check the King and win the Bishop.

My opponent seems to have been a bit too comfortable with his assessment of the endgame as drawish. That made two of us.

42.Qg4+ Kh7 43.Qe4+ Kg8 44.h3


A small idea, but a useful one. With the back-rank checkmate prevented, my Queen can wander more successfully, not just limiting herself to offeres to exchange or checks on the enemy King.

44...Bd7 45.Kh2 Qe8

White's e-pawn is effectively blockaded, his Queenside pawns will not produce a passer on their own, and creating one on the Kingside will expose the White King to plenty of attacks. A win for for me, if it is there, is a long way down the road.

46.Qc4+ Kh7 47.Qxc7 Black resigned


With my King safe, however, my pawns do not have to do it on their own. The Queen will soon pick off Black's a-pawn, and then White's Queenside pawns will begin to advance and assert themselves.

My opponent decided that there was no need to let things go that far.

23.Nxd5 Nxd5 24.Rxd5 Bb7

Saturday, February 19, 2011

It's hard to know...

It's hard to know what progress, if any, the following game shows for my recent play. Several times when things were getting interesting, the bottom dropped out of my opponent's play...

Of course, it was nothing like our first game.


perrypawnpusher - VGxdys
blitz, FICS, 2011

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.Qh5+ Ng6


8.Qd5+ Ke8 9.Qxc5 d6 10.Qe3 N8e7


11.f4

I have had similar positions coming out of the regular Jerome Gambit line (i.e. no ...h6, not yet 0-0) and it is clear that White benefits here from the Semi-Italian move order.

11...Qd7

A bit puzzling: I really don't know what this move was about. Black can't afford to throw tempi about. Instead, perrypawnpusher - apinheiro, blitz, FICS, 2011, continued 11...Rf8 12.f5 Ne5 13.d4 Nc4 14.Qg3 Rg8 (1-0, 25)

12.f5 Ne5 13.d4 Nc4



14.Qe2

Grabbing a tempo by attacking the Knight, while staying on the e-file with the enemy King (and off the d-file with the enemy Queen). After the game Rybka expressed a preference for 14.Qg3.

14...b5 15.b3

Another kick at the Knight, while preparing to put my Bishop on the a1-h8 diagonal (a plan that I subsequently dropped).

An alternate idea was to undermine Black's Knight with 15.a4. It looks like after the consistent liquidation 15...d5 16.axb5 Nd6 17.Nc3 dxe4 18.Nxe4 Nxe4 19.Qxe4 Qd5 20.Qxd5 Nxd5 21.c4 Nf6 
White's 3 pawns balance out Black's Knight.




analysis diagram









15... Ba6

A strange oversight. Retreating the Knight to b6 was the move.

16.bxc4 bxc4 17.Nc3 Rf8


The nice thing for Black about the Jerome Gambit is that he can often drop a piece, and still have a tolerable game.

Here, White is better (up a pawn, more center control, safer King) but the game is far from over. My plan was to break through with e4-e5, but only after I had made sure that I could do so safely and with proper development.

18.Ba3

Linking my Rooks and targetting e7 and f8.

18...Kd8 19. g4 Nc6 20. Rad1


20...g5 21.e5 Nxd4

Again, incomprehensible.

22.Rxd4 h5

A spirited notion: how about some counterplay on the h-file?

23.h3

This was an I-don't-want-to-think-about-it-right-now move. Too bad I missed 23.Bxd6.

23...hxg4


24...Qh7

Planning to back the Queen up with ...Rh8 if he gets a chance.

He doesn't.

25.exd6 Kc8



If, instead, 25...c5, one of the few moves that does not lead directly to checkmate, I had 26.Qe7+, ending all counterplay and winning the exchange as well with 26...Qxe7 27.dxe7+ Kxe7 28.Bxc5+

Now it all tumbles to an end.

26.d7+ Kb8 27.d8=Q+ Rxd8 28.Rxd8+ Kb7 29.Qe4+ c6 30.Rxa8 Kxa8 31.Qxc6+ Bb7 32.Qe8+ Black resigned




Saturday, January 29, 2011

Sometimes you win, anyhow

Sometimes I look over a game that I have played and the strange thing seems to have little substance, being mostly bluster and a frantic waving of arms on my part.

On those sobering occasions, I console myself with having won the game, anyhow.


perrypawnpusher - apinheiro
blitz, FICS, 2011

1.e4 e5 2.Nf3 Nc6 3.Bc4 h6


The Semi-Italian Opening.

4.0-0 Bc5 5.Bxf7+


The Semi-Italian Jerome Gambit.

5...Kxf7 6.Nxe5+ Nxe5 7.Qh5+


Despite second thoughts (see "Walking Through A Junkyard") I keep playing this line  successfully (see "Cure for Time Trouble (Part 1)").

7...Ng6

My opponent has also played 7...g6 against me in perrypawnpusher - apinheiro, blitz, FICS, 2010 (1-0, 35)

8.Qd5+ Ke8 9.Qxc5 d6 10.Qe3 N8e7


11.f4 Rf8 12.f5 Ne5 13.d4 Nc4

Varying from an earlier game between us that had continued with 13...Ng4, perrypawnpusher - apinheiro, blitz, FICS, 2010 (1-0, 59).

14.Qg3

As always: where to put the Queen?

After the game I was testing a new engine, Houdini, and it recommended 14.Qe2, instead, leading to a highly tactical line, 14...d5 15.Nc3 Nd6 16.Bxh6 gxh6 17.f6, where best play by Black can keep White's advantage to a minimum, but poor play will be punished quickly.

14...Rg8 15.Nc3 Kf8

Walking into the line of fire.

16.b3

Houdini preferred 16.Qh4 with play on the light or dark squares, depending on how Black chose to defend.

16...Nb6 17.f6

This advance is premature. I needed more developed pieces to support an attack. 

17...Ke8

It is true that after the correct 17...gxf6 White can continue 18.Bxh6+ and if 18...Kf7 thre is the exciting 19.Rxf6+!? with a continuing attack; but if Black's King retreats, instead, with 18...Ke8 White has no better than an even game.

Black's move in the game is an unfortunate oversight, and his game proceeds to unravel.

18.f7+ Kf8 19.fxg8Q+

Even stronger was 19.Bxh6.

19...Kxg8 20.Bxh6 g6 21.Rf8+ Qxf8 22.Bxf8 Kxf8


Black has only two pieces in return for his Queen, and White has open lines to continue his assault.

23.Qf4+ Kg7 24.Rf1 Be6

Losing a piece, but "best" according to Houdini was 24...Bf5, which still drops the Bishop.

25.Qf6+ Black resigned

Wednesday, August 25, 2010

Shaky


I suppose I should take a break from playing the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+), calm myself, do some more analysis of the opening and study to improve my game, especially tactics – but I can't stay away. If I give my favorite opening my best play, it usually returns the full point to me...

perrypawnpusher  - apinheiro
blitz, FICS, 2010

1.e4 e5 2.Nf3 Nc6 3.Bc4 h6


The Semi-Italian Opening.

4.0-0 Bc5 5.Bxf7+


The Semi-Italian Jerome Gambit.

5...Kxf7 6.Nxe5+ Nxe5 7.Qh5+ g6


Without ...h6 and 0-0, this would be the beginning of either the Blackburne or Whistler defense. As it is, stronger than the text would be 7...Ke6.

8.Qxe5

Black's responses to this capture have been reviewed in the recent "Zombie Chess" and older "I think I have a win, but it will take time..."

8...Bd6



A couple of days before this game I faced the same (not-so-good) Bishop move in a regular Jerome Gambit (without ...h6 and 0-0) against Sirenus. The updated New Year's Database does not have an example of 8...Bd6 in the Semi-Italian Jerome Gambit – until now.

9.Qxh8 Qf6 10.Qxf6+ Nxf6


White is the exchange and a couple of pawns ahead. I should win – once I get past feeling shaky. (See "Crushed" and "A Severe Challenge" not to mention that my only win since was when my opponent resigned in a better position, "Worth the time?".)

11.d3 Be5 12.Bxh6

What is this? I'd like to pretend that it is a fancy sacrifice of the exchange, but it's simply a mistake – or it would have been, if my opponent had noticed, or if he hadn't been suspicious of my intent.

12...Ng4


Forcing me to fix my mistake at the cost of returning a pawn. Instead, Black had 12...Bxb2 13.Nd2 Bxa1 14.Rxa1 d5, when he would have recovered the exchange. He would still be worse, but not as desperate.

13.Bc1 Bxh2+ 14.Kh1 Be5 15.f4 Bd4 16.c3 Be3 17.Bxe3 Nxe3


The annoying Bishop has been replaced by an annoying Knight. Lucky for me, I only have to face one at a time.

18.Rf2 d6 19.Na3 Bd7 20.Re1 Rh8+


Welcome to the club, annoying Rook.

21.Kg1 Ng4 22.Rf3 Nh2 23.Rg3 Ng4 24.Nc2 Nf6


Slowly I'm getting untangled. Soon, the extra material should tell.

25.Ne3 Nh5 26.Rf3 Nf6 27.e5


27...dxe5

Instead, the over-worked Knight needed to go back to h5. Now it is lost.

28.fxe5 Bc6 29.Rxf6+ Kg7 30.Ref1


Time to put the game away.

30...Rh5 31.d4 Bb5 32.Rf7+ Kh6 33.R1f3 Be2 34.Rh3 Rxh3 35.gxh3 Black resigned