Monday, October 26, 2020

Jerome Gambit: I Don't Know What To Say...


I continue to be amazed by chess players who can play at bullet speed - 1 minute, no increment - and not only use the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) but also play an interesting game - and win! The following game - with 78 moves, which means less than a second per move - left me speechless.


Anonymous - Anonymous

1 0 bullet, lichess.org, 2020


1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 


4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 

7.Qd5+ Kf8 8.Qxc5+ d6 9.Qe3 Nf6 


A position familiar to many Jerome Gambit players has arisen. White has two pawns for his sacrificed piece. He continues to develop, while safe-guarding his King and grabbing a second pawn. He is not distressed to see the Queens leave the board.

10.d3 Qe7 11.Nc3 d5 12.exd5 Qxe3+ 13.Bxe3 Ng4 14.O-O-O Nxe3 15.fxe3 Bg4 16.Rhf1+ Ke7 17.Rde1 Rhf8 


Like Mr. Rogers would say, it's a beautiful day in the neighborhood. The computer rates Black a little bit better, but in a club game - and a bullet one at that - White has plenty of chances to use his "Jerome pawns".

18.e4 Rxf1 19.Rxf1 Rf8 20.Rxf8 Kxf8 21.g3 Ke7 22.Kd2 c6 23.dxc6 bxc6 24.Ke3 Kd6 


Readers, please don't leave. I promise you, things will become interesting.

25.d4 Be6 26.e5+ Ke7 27.Ne4 Nf8 28.b3 h6 29.c4 a5 30.Nc3 Nd7 31.d5 cxd5 32.cxd5 Bg8 33.Kd4 g5 


If it looks like White's pawns give him the advantage - you are right. Things are going to get even more interesting.

34.Ne4 Kf7 

A slip.

35.e6+ Ke7 36.exd7 Kxd7 37.Nf6+ Ke7 38.Nxg8+ Kf7 39.Nxh6+ Kg6 40.Ng4 Kf5 41.Ne5 g4 


Okay, White has outplayed his opponent, and is up a piece and 3 pawns. BUT - this is a bullet game, and the clock can easily determine the winner. So, Black plays on. It is not clear if White is amused or not.

42.d6 Kf6 43.Nxg4+ Ke6 44.d7 Kd6 


Could be a mouse slip, could be a hope to reach a stalemate position in a deadly time scramble.

45.d8=N 

Interesting.

45...Kd7 46.Nf7 Kc6 47.Nfe5+ Kb5 48.Ne3 Kb4 49.N3c4 a4 50.bxa4 Kxa4 


51.g4 Kb4 52.h4 Ka4 53.h5 Kb5 54.g5 Kb4 55.h6 Ka4 56.h7 Kb4 57.g6 Ka4 58.g7 Kb4 59.h8=N Ka4 60.g8=N 


Okay...

60...Kb4 61.Nhf7 Ka4 62.Kc3 Kb5 63.Nf6 Ka4 64.Ng5 Kb5 65.Neg4 Ka4 66.Nh5 Kb5 67.Nf4 Ka4 68.Nce5 Kb5 69.Neg6 Ka4 


The Knights consult.

70.Kc4 Ka3 71.N6e5 Ka4 72.Ne4 Ka3 73.Ne3 Ka4 74.Ned3 Ka3 75.Ndc5 Kxa2 76.Nfd3 Ka1 77.Nc2+ Ka2 78.Nc3 checkmate


Um... yeah... right. Amazing as well as amusing.


Sunday, October 25, 2020

Jerome Gambit: Relax at Your Own Peril


By now, Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+)
players are familiar with the "Halo Effect" and the "Negative Halo Effect". If there is something positive about you, many people may figure that there are a lot of positive things about you. In the other direction, if there is something negative about you, many people may figure that there are a lot of negaative things about you.

So, if you start the game with a wild and wacky refuted opening, your opponent may well relax, because he figures the rest of your play will be equally sketchy.

The following game shows that this kind of relaxation is not good for one's chessic health.

PearsonHardman - BozGoord

2 1 blitz, lichess.org, 2020


1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 


4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 


7.Qf5+ Kd6 8.f4 Qf6 9.fxe5+ Qxe5 10.Qf3 Nf6 


Also recently seen: 10...Qf6 11.Qg3+ Ke7 12.Nc3 c6 13.d4 Bb6 14.Bg5 Black resigned, Wall,B - RRGP, FICS, 2020.

11.d3 

This move protects the e-pawn - but, what else does it do?

11...b5 

Uh, it lets Black fianchetto his light-square Bishop??

12.Bf4 

Oh... yeah... that.

The Database shows 18 games with this pin & win of the Queen. 

12...Bb7 13.Bxe5+ Kxe5 


Black has two pieces for his Queen, but he will soon lose another. He plays on, perhaps rooting for the clock to take out his opponent.

14.Nc3 Raf8 15.O-O-O a6 16.Qf5+ Kd6 17.e5+ Kc6 18.exf6 Rxf6 19.Qd5+ Kb6 20.Qxd7 Black resigned


White's King is safe, Black's King is not. Defending a position where you are down a Queen and a pawn, with only a piece compensation, is not all relaxing.


Saturday, October 24, 2020

Jerome Gambit: Thicket of Problems



In the following Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) game, White makes his way through a thicket of problems to a clearing where he is better - only to succumb to what looks like a time pressure slip. Of course, a 5-minute blitz game is constant time pressure, and it is easy to miss the subtleties that arise. Play over the game, and see for yourself.


PikaPwn - Bromberry

5 0 blitz, Chess.com 2020

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


4...Kxf7 5.Nxe5+ Nxe5 6.d4 Qf6 


This position is a pretty good example of the options that Black has on defense - he ignores the attack on two pieces, and develops a third. He could have similarly played 6...Qh4.

7.dxc5 Ne7  8.O-O Rf8 9.f4 N5c6 10.e5 Qf5 11.Nc3 Kg8  


Black has a piece for two pawns, has better development, and has castled-by-hand.

White's pawns clamp down on the d6 pawn and give some counterplay.

12.Nd5 

Another way to attack c7, one that does not risk the exchange of Knights, is 12.Nb5.

12...Nxd5 13.Qxd5+ Kh8 14.c3 d6 15.cxd6 Be6 16.Qb5 cxd6 17.Qxb7 


White has been tearing up Black's pawns, but there is danger associated with this capture.

17...Nxe5 

Possible because the Knight cannot be captured without allowing checkmate.

18.Be3 a5  

Perhaps planning 19...Rfb8, harassing the Queen, but missing the fact that the capture of the Knight is now on.

19.fxe5 Qd3 20.Rxf8+ Rxf8 21.Bd4 


The position features Bishops of opposite colors. Will that matter? It will, if the heavy pieces come off the board, when an extra pawn or two for White will not prevent the possibility of a draw. However, with heavy pieces on the board, the player who can attack has the advantage.  

21...Bc4 22.h3 dxe5 23.Bxe5 


White threatens checkmate at g7. In blitz, direct threats are good. Had he more time, however, he might have opted for 23.Bc5, when the game might have devolved into a draw, e.g. 23...Rf1+ 24. Rxf1 Qxf1+ 25. Kh2 Qf4+ 26. Kh1 Bxa2 27. Qa8+ Bg8 28. Qxa5 Qc1+ 29. Bg1 Qxb2 30. Qxe5 h6 31. Bd4 Qb1+ 32. Kh2 Qg6 - the extra pawn is probably not enough to win.

23...Rf1+ 

Black jumps too quickly, because he is thinking of his own chances for checkmate. There was a piece to be won with 23...Qe3+ 24. Kh1 Qxe5

24.Rxf1 

This move is okay, but how would Black have answered 24.Kh2 - ? It would have cost a lot of material.

24...Qxf1+ 25.Kh2 Qf7 26.Qc8+ Qg8 

27.Qg4 

Exchanging Queens would have led to a Bishops-of-opposite-colors endgame, which might have been a win for White, although it would take some work.

27...Be6 

This overlooks a tactic. He probably should have gone ahead with 27...Bxa2. 

28.Qa4 

There was, instead, 28.Bxg7+ Qxg7 29. Qxe6 winning a pawn, but time was short and there was no reason to complicate.

28...Bxa2 

29.Qxa2 

An unfortunate oversight. Grabbing the pawn was more likely to win. Now White's only chance lies with the clock.

29...Qxa2 30.b4 axb4 31.cxb4 Qd5 32.Bc7 Kg8 33.Ba5 Kf7 34.Kg1 Ke6 35.Kf2 Kf5 36.Kg3 g5 37.Kh2 Qe5+ 38.Kh1 Kf4 39.Bd8 Kg3 40.b5 Qe1 checkmate



Friday, October 23, 2020

Jerome Gambit: Follow the Yellow Brick Road


The following game wanders off the Yellow Brick Road that leads to the Jerome Gambit - but only for a short time. Upon its return, White proves himself enough of a wizard to collect the full point in under ten moves.

BenSomeone - DanielMaeng

2 1 blitz, Chess.com, 2020

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Nxe5 


This reminds me of Chicago Gambit, (also known as the Irish Gambit or the Razzle Dazzle Gambit) - 1.e4 e5 2.Nf3 Nc6 3.Nxe5 -  and the Halloween Gambit (also known as the Müller–Schulze Gambit or the Leipzig Gambit) - 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Nxe5.

I was surprised to find over 200 games with 4.Nxe5 in The Database.

4...Nxe5

Now Komodo 11 recommends either 5.Be2 Ng6 6.d4 Bb6 or 5.d4 Bb4+ 6.c3 Nxc4 7.cxb4 d5.

5.Bxf7+ 

The Database has 18 previous examples, with White scoring 10 - 8. Only four of those games featured the best response, 5...Nxf7 - Black has two pieces for two pawns, and his King can castle to safety in a few moves and, somewhat surprisingly, White scored 2 - 2.

5...Kxf7 

Suddenly, White is on the safe path of the Jerome Gambit.

6.Qh5+ Ng6 7.Qxc5 b6

Seen in five previous games; tempting, but losing.

8.Qd5+

Recently seen, but not as accurate: 8.Qf5+ Nf6 9.e5 d6 10.e6+ Kg8 11.d3 Nh4 12.Qg5 Nf5 13.Qxf5 Qe7 14.0–0 Bxe6 15.Qf4 Nh5 16.Qf3 Rf8 17.Qe3 Nf4 18.Qe4 d5 19.Qe5 Nxg2 20.Kxg2 Rf5 21.Qe3 Kf7 22.Re1 Qh4 23.Qxe6+ Kf8 24.Qe8 checkmate, Akash_12345 - S_P_Kushwaha, 5 0 blitz, lichess.org, 2020

8...Ke8 9.Qxa8 Black resigned


White is up two pawns and the exchange.


Thursday, October 22, 2020

Jerome Gambit: The Problems of Safety



In the following Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) game, Black seems uncomfortable defending the gambit, and seeks safety through several reasonable moves. That seems to allow him to relax - which, against the Jerome, can lead to very un-safe happenings.


f3_kf2 - Romanoe

5 3 blitz, lichess.org, 2020


1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 


4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 


7.Qxc5 Qe7 8.Qf5+

Also seen, recently: 8.Qxe7+ N8xe7 9.Nc3 d6 10.f4 Ke8 11.O-O Rf8 12.d4 Nc6 13.Be3 Bd7 14.Nd5 Kd8 15.f5 Nge7 16.Bg5 h6 17.Bh4 Rf7 18.c3 Kc8 19.Ne3 b6 20.g4 Kb7 21.Bg3 Re8 22.Rae1 Nc8 23.Ng2 a6 24.Nf4 N6e7 25.e5 d5 26.e6 Bxe6 27.Nxe6 Nd6 28.Bxd6 cxd6 29.Re2 g5 30.Rfe1 Rc8 31.Nxg5 hxg5 32.Rxe7+ Rxe7 33.Rxe7+ Kc6 34.Rg7 Kb5 35.Rxg5 Kc4 36.f6 Rf8 37.Rf5 Kd3 38.g5 Kc2 39.Rf2+ Kd3 40.g6 Ke3 41.g7 Rg8 42.Kf1 b5 43.f7 Rxg7 44.f8=Q Re7 45.Qf3 checkmate, SanitationEngineer - NN, 3 0 blitz, Chess.com, 2020. (Yes, White is the U.S. champion, GM Nakamura.)

8...Nf6 9.O-O d6  

So far, Black can be happy, with his piece for two pawns, and better development.

10.Qa5 Rf8 11.Nc3 Kg8 


Black has castled-by-hand. His next move, an offer to exchange Queens, is another safety move.

12.d3 Qe5  13.Qxc7 

White grabs a pawn, but this leaves him open to the strong attacking move, 13...Ng4.

13...Qc5 14.Qxc5 dxc5 


Black has found safety in a largely even game. Club players familiar with the Jerome Gambit would probably prefer to play as White.

15.f4 Be6 

In relative safety, he relaxes...

16.f5 Bd7 17.fxg6 hxg6 18.Be3 b6 19.h3 Bc6 20.Bg5 Rae8 


White is a couple of pawns ahead.

21.Rae1 Nd7 22.Rxf8+ Kxf8 23.Rf1+ Kg8 24.Rf3 Ne5 25.Re3 Nf7 26.Bf4 g5 27.Bg3 Ne5 28.Bxe5 Rxe5 


White has maintained his material advantage. Also, his position is easier to play - a factor in blitz games.

29.Kf2 Kf7 30.Rf3+ Ke6 31.g4 g6 32.Nd1 c4 


33.dxc4  

Giving Black a bit of what he wants. Simpler and stronger was 33.Nc3

33...Bxe4 34.Re3 Bxc2 

A tactical slip. Black attacks the Knight, but misses the fact that he is trapping his own Bishop.

35.Nc3 


Just so.

35...Rxe3 36.Kxe3 Ke5 37.Ne2  

With a little more time, White might have figured out that 37.Kc7 was strong. If 37...Be4, then 38.Nxe4 Kxe4 39.Kc3 would leave Black in a dilemma, as White has a dangerous Queenside pawn majority that will produce a passed pawn; and if Black seeks to create his own passer on the Kingside with 39...Kf3 40.Kd4 Kg3 41.Ke3 Kxh3 42.Kf3 he will find nothing. Perhaps Black's best chance was 37.Kc7 Bf5, when White would still be better, but the clock might be a factor in determining things.

37...Be4 38.Nd4 Bg2 39.Nf3+ Bxf3 

This exchange simplifies things - for White.

40.Kxf3 Kd4 


41.b3 Kc3 

This is Black's hope, to win White's Queenside pawns. The problem is that White can create a passed pawn - and, that time is running out.

42.Ke4 Kb2 43.b4 White won on time




Wednesday, October 21, 2020

Jerome Gambit: St. Jerome vs St. George.

The following game might be referred to as "St. Jerome vs St. George" - if St. Jerome had anything to do with the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+), which he didn't. I am just looking for an excuse to quote past World Champion Lasker

Emmanuel Lasker seems to have had the best, if not the last, word on the gambit, responding to a letter to “Our Question Box” in the March 1906 issue of Lasker’s Chess Magazine
No; the Jerome gambit is not named after St. Jerome. His penances, if he did any, were in atonement of rather minor transgressions compared with the gambit.


Anonymous - Anonymous

5 2 blitz, lichess.org, 2020


1.e4 a6 


The St. George Defense, sometimes referred to as the Baker Defense, as the earliest known game with the line was a simultaneous game win by J. Baker against Wilhelm Steinitz on December 11, 1868.

It is worth quoting what Wikibooks has to say on the subject

When played seriously this defence is workable. Black lets White grab the center like in a "hypermodern" opening, while gaining power on the queenside. Usually, b5 and Bb7 will follow soon (attacking e4 pawn, eventually with help of Nf6). That way, Black can enter a very playable middlegame, contrary to what might have been expected. It remains viable in highly skilled games, such as Tony Miles overcoming Karpov using this opening.

In response to this move, White can either start taking control of the center with 2.d4 or try to prevent the b5 move with 2.c4. But this last move is considered inferior because of 2...e5, where Black would have a slight advantage (the same goes for 2.a4).

Also note that White can try to set a powerful trap for unadvised Black players (but those who play the St. George as Black are generally advised players) by playing 2.Bc4. If 2...b5, then 3.Bxf7+ Kxf7 4.Qh5+ and White can manage to win a rook.

White can also choose to develop a Knight first with 2.Nf3 or to challenge Black on the diagonal with 2.g3.

In this game, White has his own ideas.

2.a4 e5 3.Nf3 Nc6 4.Bc4 Bc5 5.Bxf7+ 


Stockfish 11 sees the addition of a2-a4 and ...a7-a6 as helping Black by a little less than a half a pawn. If Black was planning on playing the St. George, however, and wound up facing the Jerome, that probably helps White.

5...Kxf7 6.Nxe5+ Nxe5 7.Qh5+ Ng6 

8.Qd5+ Ke8 9. Qxc5 d6 10.Qe3 Nf6 


Except for the a-pawns, this is a familiar Jerome Gambit position.

11.Nc3 Be6 

This allows the typical pawn advance f2-f4, threatening f4-f5, forking two pieces, but White has a different idea in mind.

12.b3 Rf8 13.Bb2 Kf7 14.O-O-O Kg8 


White has castled Queenside. Black has castled-by-hand. Now the pawns begin to march.

15.h3 c6 16.Rhf1 b5 17.f4 Bf7 18.g4 


18...Nd7 

Probably better was the consistent 18...d5, as 19.e5 could be answered by 19...d4.

19.Qd4 c5 20.Qxd6 c4 21.e5 Re8 22.d4 cxb3 23.f5 bxc2 24.Kxc2 Ngf8 


25.e6 

This wins a pawn in true Jerome fashion, but White's King is the one more at risk at this point. Even more so because White chose the "berserk" option in playing this game, giving him only about half of the time he would otherwise have, 2 1/2 minutes.

25...Nxe6 26.fxe6 Rxe6 27.Qf4 Bg6+ 


Who is better? Although material is equal, Stockfish 11 rates Black the equivalent of a Queen ahead!

Black's follow through is faulty, however.

28.Kc1 bxa4 

Okay, but 28...b4 was stronger.

29.d5 Rf6 

Tempting, but 28...Rb6 was stronger.

30.Qxa4 Rxf1 31.Rxf1 Qg5+ 

Attacking the enemy King, and keeping and eye on the Kingside pawns.


32.Qf4 Qh4 33.Qc4 Nb6 34.Qd4 Qg5+ 35.Qf4 


It is hard to believe, but the computer suggests that afte 35.Kd1, White would have an edge.

Instead, he offers to exchange Queens, something Black declined a few moves ago - but not now.

35...Qxf4+ 

Black's instincts were right the first time. He should play 35...Qh4, for the advantage. With the text, he looks for a draw.

36.Rxf4 Rd8 37.Rd4 Kf7 38.Kd2 h5 39.Ke3 hxg4 40.hxg4 Bc2


41.Rf4+ Kg8 42.Rd4 Nc8 43.Ne4 Bxe4 

The Bishop might have been useful in reaching a Bishops-of-opposite-colors endgame.

44.Kxe4 Nd6+ 



The Knight is a solid blockader, but he may not be enough against White's aggressive King.

45.Ke5 Nf7+ 46.Ke6 Rd6+ 47.Ke7 Rb6 48.Bc1 Nd6 


49.Bf4 Nb5 50.Rd1 Rb7+ 51.Ke6 Kf8 52.d6 Rb6 


53.Kd5 

Just enough. He could have taken an easier route with 53.Be5 53.g5 or

53...Nc3+ 54.Kc5 Nxd1 55.Kxb6 


White's central passed pawn easily outweighs Black's outside one.

55...Ke8 56.Kc7 Nc3 57.d7+ Kf7 58.d8=Q Nd5+ 59.Qxd5+ Kf6 60.Qe5+ Kg6 61.Qf5 checkmate


An interesting and exciting game!