Tuesday, July 7, 2020

Jerome Gambit: More Recent Videos


The recent increase in attention to the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) has led to an increase in videos on the opening at YouTube.com. I have already posted one list of links, but here is another, of recently created videos.

The last video listed ("Everything You Should Know About The Jerome Gambit"), by GM Cemil Can Ali Marandi, is particularly interesting, and quite good, and I point it out - to those who want to know how to meet the Jerome Gambit, and for those who want to prepare for when they play those who take the grandmaster's suggestions.

The next-to-last video ("Das Jerome Gambit || Das schlechteste Gambit im Schach?!"), by GM Huschenbeth, is also good, although it helps if you know a bit of German.

https://www.youtube.com/watch?v=yU46n4Y_8Mg

https://www.youtube.com/watch?v=KUJK162EzLs

https://www.youtube.com/watch?v=eQz59OM9r-E

https://www.youtube.com/watch?v=tI7mVbHvuFM

https://www.youtube.com/watch?v=osIkwIPff84

https://www.youtube.com/watch?v=DABYM3mdXW0

https://www.youtube.com/watch?v=n20i4fbgZj8

https://www.youtube.com/watch?v=jgrl64N6q3s

Monday, July 6, 2020

Jerome Gambit: A New Game In An Old Line

Sometimes the best way to understand a recent game is to reflect upon past games with the same line of play. The following game is a good illustration.

Yohannessen - saumilpradhan
5 5 blitz, Chess.com, 2020

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6


The Two Knights Defense. 

Jerome Gambit players have to deal with it - see "Jerome Gambit vs Two Knights Defense (Part 1), (Part 2), (Part 3) and (Part 4)" for starters.

Recently, I have been seeing a lot of games featuring 4.Bxf7+, a variation I have loosely referred to as an "impatient Jerome Gambit" because White does not wait for ...Bc5 before sacrificing.

4.Qe2

White has a different idea. To put it into context, see "No Way A GM Plays the Jerome Gambit! (Part 1)". There is also the historical perspective reflected in "Proto-Jerome Gambits? (Part 3)".

The earliest example that I have seen with this move is Pollock, W.H.K. - Vernon, J.E., Bath vs Bristol match, 18831.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Qe2 Be7 5.d4 d6 6. d5 Nb8 7.Nc3 Nbd7 8.Bd2 Nb6 9.Bb3 Bd7 10.Nd1 a5 11.a3 c6 12.c4 c5 13.O-O O-O 14.Ne1 Ne8 15.f4 Bf6 16.f5 Bg5 17.Ne3 Bxe3+ 18.Bxe3 g6 19.Bh6 Ng7 20.f6 Nh5 21.Bxf8 Kxf8 22.Qe3 Nxf6 23.Nf3 Ng4 24.Qd2 Kg7 25.Ng5 Nh6 26.Rf2 Qe7 27.Raf1 Rf8 28.h4 a4 29.Ba2 drawn

It was also played in Gunsberg - Burn, 6th American Chess Congress, 1889 (1/2-1/2, 27) and Bird - Chigorin, 6th American Chess Congress, 1889 (0-1, 53).

4...Bc5 5.Bxf7+

For the earliest example that I have found of this move, see "Adolf Albin Plays the Jerome Gambit (Part 1 & 2)", which focuses on the game Albin,A - Schlechter,C, Trebitsch Memorial Tournament Vienna, 1914 (0-1, 31).

5...Kxf7 

The game has transposed into a possible Jerome Gambit line: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Qe2 Nf6.

6.Qc4+ Ke8 7.Qxc5 b6 

Black pushes back. If he were able to castle, the pawn deficit would not matter much.

By the way, the alternative, 7...Nxe4 is met by 8.Qe3 d5 9.d3 Nf6 10.Nxe5 and White has recovered the pawn, while opening the dangerous e-file.

8.Qe3 Ba6 9.d3 Nb4 10.Na3 Ng4 



The time control for the game is 5 5 blitz, and a flurry of active pieces is a good strategy. White responds by exchanging Queens. 

11.Qg5 Qxg5 12.Bxg5 h6 13.Bd2 Rf8 



An oversight.

14.Bxb4 Rf4 15.Bd2 Rf6 16.Bc3 d6 17.d4 c5 18.dxe5 dxe5 



19.Nxe5 Rxf2 20.Nxg4 Re2+ 21.Kd1 Rxg2 22.Ne3 Rd8+ 23.Kc1 Re2 24.Nf5 Rd7 25.Bxg7 Rf2 26.Re1 Rdd2 



Black continues to pressure the White King.

27.Bxh6 Rde2 28.Rxe2 Rf1+ 29.Kd2 Rxa1 30.Re1 Rxa2 31.b3 Rxa3 

Play continues in a rowdy fashion, but now White turns to his passed "Jerome pawn".

32.e5 c4 33.bxc4 Bxc4 34.e6 b5 35.e7 a5 36.Ng7+ Kf7 37.e8=Q+ Kf6 38.Qf8+ Kg6 39.Nf5 

Black resigned

 What would happen next: 39...Kh5 40.Qg7 Rd3+ 41.cxd3 a4 42.Qg5 checkmate

Sunday, July 5, 2020

Jerome Gambit: Beautiful!


The Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) was created for the attack on the enemy King. Along the way, there may be unusual postions on the board, but when the final one is a checkmate - beautiful!

BoomBoomTNT-YT - 123456789010chess
3 0 blitz, Chess.com, 2020

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 




4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 




Analysis of this position first published
Dubuque Chess Journal  
April 1874, Vol. VI, No. 50, p. 358-9
"New Chess Opening"We have received from A.W. Jerome of Paxton, Ford county, Illinois, some analyses of a new move in the Giuoco Piano, first played by him, which we offer our readers as: Jerome's Double Opening...
7.Qf5+ Kd6 8.f4 Qf6 

9.fxe5+ Qxe5 10.Qxe5+ 

A recent example of avoiding the exchange of Queens: 10.Qf8+ Kc6 11.Qf3 d6 12.c3 Bb6 13.d4 Qe7 14.O-O Nf6 15.e5+ Nd5 16.Re1 h5 17.Kh1 Bg4 18.Qe4 dxe5 19.c4 Rad8 20.cxd5+ Rxd5 21.Nc3 Bxd4 22. Qxd5+ Black resigned, SurgeonOfDeath27 - ajirin, 15 10 blitz, Chess.com 2020

10...Kxe5 11.b4 Bf8  

According to The Database, this is a new position.

Here is a look at alternatives.

In the meantime, such a position should get a Jerome Gambit player's heart beating rapidly. Komodo 10 says everything is okay for Black - but this is a human vs human 3-minute game.

12.O-O Nf6 13.d4+ Kxe4 

This is playable, but it is the first step on a slippery slope.

14.Nc3+ Kxd4 

15.Nb5+ Kc4 16.Nxc7 Rb8



Saving the Rook. What could be more natural?

However, White now has a forced checkmate! 

17.Rf4+ Kc3 18.Nb5+ Kxc2 19.Rc4+ Kd3 20.Rd4+ Ke2 21.Bd2 



Black resigned

It is checkmate the next move. Bravo!

Saturday, July 4, 2020

Jerome Gambit: Ghosts of Moves Unplayed


Playing a 3-minute game often requires both players to put aside any thoughts of what moves they could have played, or should have mande, but didn't. With more time to reflect, such musings might help in forming future plans, but in blitz, they can haunt ongoing play.

BoomBoomTNT-YT - tyronev1
3 0 blitz, Chess.com, 2020

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




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

Now, Black can choose Blackburne's Defense, 7...d6, or Whistler's Defense, 7...Qe7 - both are complicated and dangerous - or amongst a handful of lesser lines, e.g. 7...Bd6.

7...Qe7 



8.Qd5+

We have recently taken a look at this infrequently- played move. See "Jerome Gambit: Largely Overlooked by History".


Recent alternatives:

8.Qxe7+ Kxe7 9.b3 a6 10.Bb2 Nf6 11.O-O Kf7 12.Nc3 Bd4 13.Rae1 Bxc3 14.Bxc3 d6 15.e5 dxe5 16.Bxe5 Rg8 17.Bxc7 Bg4 18.f3 Bh5 19.Bd6 Rad8 20.Bb4 g5 21.Re7+ Kg6 22.Rxb7 Rg7 23.Rb6 Rd4 24.Bc3 Rd8 25.Rxf6 checkmate, Ghigi,N - NN, 5 1 blitz, 2020;

8.Qxh8 Ke6 (8...Qxe4+ 9.Kd1 Qxg2 10.Qxh7+ Kf8 11.c3 Qxh1+ 12.Kc2 Qe4+ 13.d3 Qa4+ 14.b3 Qg4 15.Bh6+ Nxh6 16.Qxh6+ Kf7 17.Qh7+ Kf6 18.Nd2 Bxf2 19.Ne4+ Kf5 20.Qf7+ Ke5 21.Qf6+ Kd5 22.c4 checkmate, tomkoolen1996 - ThomasBovenkerk, 10 5 blitz, lichess.org, .com, 2020; or 8...Nf6 9.d3 b6 10.Bg5 Bd4 11.c3 Bb7 12.Bxf6 Bxf6 13.Qxh7+ Kf8 14.Qxe7+ Black resigned, Anonymous -Anonymous, 5 0 blitz, lichess.org, 2020) 9.Qxg8+ Kd6 10.Qd5 checkmate, decidueyemainbtw -MarcosEngenheiro, Chess.com 2020; and

8.Qf4+ Qf6 9.Qg3 Bd6 10.f4 Bxf4 11.Qb3+ Qe6 12.O-O Qxb3 13.Rxf4+ Kg7 14.axb3 d6 15.d4 Ne7 16.Nc3 Bd7 17.Be3 a6 18.Raf1 Rhe8 19.Rf7+ Kh8 20.Bg5 Nc6 21.Bf6+ Kg8 22.Rxd7 Black resigned, Wall,B - Guest744598, PlayChess.com, 2020.

8...Kg7

The text move looks a little bit better than 8...Kf8, which might place the King in the way of a Rook that wants to be developed, e.g. eronald - ayushsankar1006, 5 0 blitz, lichess.org, 2020 (0-1, 23). 

9.d4 Bb4+

Not quite as strong as 9...Bb6levigun - obviously, 5d + 2d GameKnot.com, 2004, (0-1, 11) 

10.c3 Nf6 11.Qe5 

White has to be careful, with only one piece developed vs three, even with his strong pawn center. Fortunately, Black helps him out.

11...Qxe5 

Exchanging Queens in the Jerome Gambit if often a help to the defender. In this case - a 3-minute blitz game - Black has not looked deeply enough, however.

12.dxe5 Nxe4 13.cxb4 Re8 



14.Nc3 

A bit stronger was 14.0-0 Rxe5 15.Bf4 Re6 16.Bxc7. This possibility seems to haunt both player's thoughts during the next few moves, perhaps unconsciously.

14...Rxe5 15.O-O 

Of course, White can not now play 15.Bf4 Re6 16.Bxc7 because of 16...Nxc3+.

15...d5 16.Be3 

This is a solid move, although, again, 16.Bf4 was on.

16...c6

Black suddenly realizes that the 16.Bf4 skewer could win a pawn, so he moves that pawn to safety. But he overlooks something.

17.Bd4 

Black resigned

The Rook is a goner.

Friday, July 3, 2020

Jerome Gambit: Remain Vigilant


Cartoon victorian balloonist

Sometimes the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) explodes decisively. Other times, White has to bide his time, waiting for a tactical opportunity. In the meantime, Black has so also remain vigilant, as a slip could prove fatal.

Such a slip occurred in the following game.

TheCuriousGreg - kibria77
15 10 bliz, Chess.com, 2020

1.e4 e5 2.Nf3 Nc6 3.Bc4 h6 4.Bxf7+ 



4...Kxf7 5.Nxe5+ 

Komodo 10 actually prefers 5.d4 here. A recent example:  5...Qf6 6.dxe5 Nxe5 7.Qd5+ Qe6 8.Nxe5+ Kf6 9.Qxe6+ Kxe6 10.Ng6 Bb4+ 11.c3 Bc5 12.Nxh8 Nf6 13.O-O b6 14.Ng6 Ba6 15.Re1 Ng4 16.Be3 Bd6 17.f3 Nf6 18.Nf4+ Ke5 19.g3 Nh7 20.Bd4 checkmate, TCNB - Kawllie, 3 0 blitz, lichess.org, 2020. 

5...Nxe5

An example of how Jerome-ing an opening can disturb the defender: 5...Ke8 6.Qh5+ Black resigned, Anonymous - Anonymous, Chess.com, 2020. 

6.d4 

Another example of how Jerome-ing an opening can disturb the defender: 6.Nc3 Bb4 7.Nd5 Bc5 8.d4 Black resigned, Anonymous-Anonymous, Chess.com, 2020

The main 6th move alternative has also seen a lot of play, recently, and is worth looking at, game-by-game: 6.Qh5+ Ke6 (6...Ng6 7.f4 [7.O-O Nf6 8.Qe2 d6 9.d4 Be7 10.e5 dxe511.dxe5 Nd5 12.Qf3+ Ke8 13.Nc3 Nxc3 14.bxc3 Be6 15.Qxb7 Nxe5 16.Bf4 Bc8 17.Qb5+ Bd7 18.Qxe5 Rg8 19.Rae1 Bc6 20.Rd1 Black resigned, aniketbhave - MoeHoward55, 10 0 blitz, Chess.com, 2020; 7.Qf5+ Nf6 8.e5 Nh4 9.Qf3 Nxf3+ White resigned, aniketbhave - ComplexRailway, 10 0 blitz, Chess.com, 2020; 7. d4 Nf6 8. Qf3 Kg8 9. e5 Nh7 10. Qd5 checkmate, Freitag - NN, 3 2 blitz, Chess.com, 2020] 7...Qh4+ 8.Qxh4 Nxh4 9.O-O Be7 10.b3 g5 11.fxg5+ Ke8 12.gxh6 Rxh6 13.d4 Rf6 14.Rxf6 Bxf6 15.Bb2 c5 16.e5 Bg7 17.dxc5 Nf5 18.Nd2 Nfe7 19.Nc4 Nc6 20.Re1 b5 21.Nd6+ Kd8 22.Re4 Nge7 23.Nf7+ Kc7 24.Bc1 Nxe5 25.Bf4 N7c6 26.Bxe5+ Bxe5 27.Nxe5 Nxe5 28.Rxe5 d6 29.cxd6+ Kxd6 30.Rxb5 Ba6 31.Rh5 Kc7 32.g4 Rg8 33.g5 Be2 34.Rh7+ Kb8 35.h4 Rg6 36.Rh8+ Kb7 37.Rh7+ Kb6 38.Rh6 Rc6 39.Rxc6+ Kxc6 40.g6 Ba6 41.Kf2 Bc8 42.Kf3 Be6 43.Kf4 Kd6 44.Kg5 Ke7 45.h5 Kf8 46.Kf6 Bg8 47.g7+ Ke8 48.h6 a6 49.c4 a5 50.Kg6 Ke7 51.h7 Bxh7+ 52.Kxh7 Black resigned, Barbarossa2000 - johnnytaylor7, 10 0 blitz, Chess.com, 2020; 6...g6 7.Qxe5 Bd6 [7...d6 8.Qxh8 Qe7 9.d3 Ke8 10.Qd4 c5 11.Qd5 Nf6 12.Qc4 Bd7 13.Nc3 Bc6 14.Bf4 Nd7 15.O-O-O Nb6 16.Qg8 Nd7 17.Bxh6 Nf6 18.Qxf8+ Qxf8 19.Bxf8 Kxf8 20.Rde1 Ng4 21.f3 Nf2 22.Rhf1 Nxd3+ 23.cxd3 b5 24.a3 b4 25.axb4 cxb4 26.Nd5 b3 27.e5 Ke8 28.Nc7+ Kd7 29.Nxa8 Bxa8 30.exd6 Kxd6 31.Re4 Bxe4 32.fxe4 a5 33.Rf3 Ke5 34.Kd2 Kd4 35.Rf6 a4 36.Rxg6 a3 37.Ra6 axb2 38.Rd6+ Kc5 39.Rd5+ Kb4 40.Rd4+ Kc5 41.Rd5+ K4 42.Rd4+ Kc5 43.Rd5+ draw, aniketbhave - Pknocks11, 10 0 blitz, Chess.com, 2020] 8.Qxh8 b6 [8...Qe7 9.Qd4 c5 10.Qc4+ Kf8 11.d3 Qf6 12.O-O h5 13.Re1 Nh6 14.Bxh6+ Ke7 15.Re3 Qe5 16.g3 Qxb2 17.e5 Qxa1 18.exd6+ Kxd6 19.Bf4+ Kc6 20.Qa4+ Kd5 21.Qb3+ Kc6 22.Be5 d6 23.Bxa1 Black resigned, aniketbhave - charlie385, 10 0 blitz, Chess.com, 2020] 9.Qh7+ Kf8 10.Qxg6 Bb7 11.f3 Ne7 12.Qxh6+ Kf7 13.Qe3 Bc5 14.Qe2 Qh8 15.c3 Ng6 16.g3 Ne5 17.d4 Nc6 18.dxc5 bxc5 19.Be3 d6 20.Qc4+ Ke7 21.b4 Ne5 22.Qb5 Rb8 23.O-O a6 24.Qa5 c6 25.bxc5 dxc5 26.Qc7+ Kf6 27.f4 Nd3 28.Rd1 Nb2 29.Rd6 checkmate dopstra - u3ao, 5 0 blitz, lichess.org, 20206...Kf6 7.Qf5+ Ke7 8.Qxe5+ Kf7 9.d3 Bd6 10.Qd5+ Kf8 11.O-O Ne7 12.Qd4 c5 13.Qe3 Qc7 14.c4 Bxh2+ 15.Kh1 Bf4 16.Qxf4+ Qxf4 17.Bxf4 g5 18.Bd6 Ke8 19.Bxc5 b6 20.Bd4 h5 21.Bxh8 Black resigned, aniketbhave - danatherton2000, 10 0 blitz, Chess.com 20207.Qf5+ Kd6 8.d4 Nc6 9.Bf4+ Ke7 10.Nc3 (10.Qc5+ d6 11.Qd5 Ke8 12.Qh5+ Kd7 13.Qf7+ Qe7 14.Qf5+ Kd8 15.Qh5 Qxe4+ 16.Be3 Qxg2 17.Qh4+ Be7 18.Qg3 Qxh1+ 19.Ke2 Bg5 20.f4 Bf6 21.d5 Nd4+ 22.Kd3 Qd1+ 23.Bd2 Qxc2+ 24.Ke3 Nf5+ White resigned, aniketbhave - Lucasrapun, 10 0 blitz, Chess.com,  2020) 10... d6 11.Nd5+ Ke8 12.Qg6+ Kd7 13.Qf7+ Nge7 14.e5 dxe5 15.dxe5 Qe8 16.e6+ Kd8 17.Bxc7 checkmate, lakapburak - pxj923, 3 2 blitz, lichess.org,  2020 

6...Ng6 7.f4 


White has also tried 7.Nc3 Bb4 8.O-O Bxc3 9.bxc3 d6 10.Qh5 Nf6 11.Qf3 Kg8 12.e5 dxe5 13.Qg3 Bf5 14.dxe5 Nh7 15.Ba3 Ng5 16.f4 Ne4 17.Qe3 Kh7 18.g4 Qd7 19.Rad1 Qe6 20.gxf5 Qxf5 21.Kh1 Rad8 22.Rde1 Nd2 23.Rf2 Nc4 24.Qc5 Ncxe5 25.Qxe5 Nxe5 White resigned, TheCuriousGreg - luiseduardomunoz1058, 10 0 blitz, Chess.com, 2020.

7...d5 8.e5 Bf5 9.O-O Bb4 



To keep White's Rook off of e1, but it allows the pawns to start rolling. 

10.g4 Be4 11.f5 Nh4 12.c3 Be7 13.Nd2 Bd3 14.Rf2 c5 15.Nf3 Be4 

Black still has control of things, but he has to remain vigilant.

16.e6+ Kf8 17.Ne5 Rh7 

Well, yes, White was threatening the Knight fork at g6...

18.Ng6+

If this were not a blitz game, White would probably have found 18.Nd7+ Ke8 19.Qa4!? Nf6 20.Nxf6+ Kf8 21.Nxh7+ Kg8 22.Bxh6+!? Kxh7 23.Be3 when he would have a Rook and 3 pawns for a Bishop and a Knight, which would be about equal in the middlegame (and maybe a slight bit better in an ending).

18...Ke8 

Black avoids the messy alternative, 18...Nxg6 19.fxg6+ Nf6 20.gxh7+ Bxh7 21.g5 hxg5 22.Qh5, but stumbles into checkmate from the other wing.

19.Qa4+ b5 20.Qxb5+ Black resigned



20...Qd7 21.Qxd7 checkmate is too painful to allow on the board.

graphic by Jeff Bucchino, "The Wizard of Draws"

Thursday, July 2, 2020

Jerome Gambit: Active and Passive Sacrifices

The Jerome Gambit is based upon active sacrifices: 4.Bxf7+ and 5.Nxe5+. The attacker practically throws his pieces at the defender.

The following game also contains a passive Queen sacrifice: White places Her Majesty where she can be attacked, and then he just leaves her there. Black might as well capture, as the alternative is to let a pawn advance and promote to another Queen.

TheCuriousGreg - MIN_0
15 0 blitz, Chess.com, 2020

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 




4...Kxf7 5.Nxe5+ Nxe5 6. Qh5+ Ng6 



7.Qd5+ Ke8 8.Qxc5 d6 9.Qe3 N8e7 



10.f4 Rf8 11.O-O Kf7 

Black is thinking about castling-by-hand, always a prudent response to the Jerome Gambit.

Less accurate is 11...Bd7, as seen recently in the uneven game that continued 12.d4 c6 13.Nc3 Qb6 14.Bd2 Kd8 15.a4 c5 16.dxc5 Qxc5 17.Qxc5 dxc5 18.Nb5 Bxb5 19.axb5 b6 20.Rad1 Kc7 21.f5 Nh8 22.Bf4+ Kb7  23.Rd7+ Kc8 24.Rxe7 Kd8 25.Rxg7 Black resigned, pupuvi - DeschainPK, 10 0 blitz, lichess.org, 2020.

12.f5 Ne5 13.Qb3+ 

Pausing to chase the enemy King away from safety.

13...Ke8 14.d4 N5c6 15.Qd3 Bd7 


A curious Jerome Gambit position! White, the gambiteer, has only 2 pieces developed to Black's 4. The material balance still favors the defender, who has a piece for 2 pawns. There is the matter of Black's King stuck in the middle of the board, however.

If White believes he has the advantage (and I believe he does), it's time for him to show it.

16.Bg5 h6 17.Bh4 g5 

This move is risky. It turns White's f-pawn into a protected passer. Worse, it allows White to open up the Kingside by capturing enpassant.

18.fxg6 Qc8 19.Rxf8+ Kxf8 20.Qf3+ Ke8 


The ugly alternative was 20...Bf5 21.Bxe7+ Nxe7 22.g4 Qe6 23.gxf5, when White's extra, avanced, pawns will prove decisive.

21.Qf7+ Kd8 22.d5 Be8 23.dxc6 

Funny. White can offer up his Queen. He can get another.

23...Bxf7 24.gxf7 Black resigned